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CAS Number: 78-93-3

Sum Formula: C4H8O

Molar Mass: 72.1 g/mol

German Synonyms: Methylethylketon | Butanon-2 | 2-Butanon

English Synonyms: 2-Butanone

EC Index Number: 606-002-00-3

EC Number: 201-159-0

Temperature Class: T1

Explosion Group: IIB

Disclaimer: The CLP/GHS classification is not regularly updated in Chemsafe. For up-to-date information, please use the ECHA database. ( https://echa.europa.eu/en/information-on-chemicals )

GHS Hazard and Category:

Flam. Liq. 2: flammable liquids, category 2
Eye Irrit. 2: eye irritation, category 2
STOT SE 3: Specific target organ toxicity following single exposure, category 3, respiratory tract irritation or narcotic effects

GHS Pictogram:

GHS Signal Word: Danger

GHS Hazard Statement:

H225: Highly flammable liquid and vapour.
H319: Causes serious eye irritation.
H336: May cause drowsiness or dizziness.
EUH066: Repeated exposure may cause skin dryness or cracking.

Antoine parameters

1992

Nabert, K.; Schön, G.; Redeker, T.

7.00806 Torr

UTI: 1050-646-5137/0-39

UTI: 1050-646-5137/0-39;
Line no	Upper temperature limit of Antoine equation	Lower temperature limit of Antoine equation	Antoine constant C	Antoine constant B	Antoine constant A
	recommended value saturated property of pure substance	recommended value saturated property of pure substance	recommended value by regression saturated property of pure substance	recommended value by regression saturated property of pure substance	defined value by regression saturated property of pure substance
1	< 80 °C	> -49 °C	231.54 °C	1284.149 °C	7.00806 Torr [1]

[1] calculated according to D.R. Stull

Bibliographic data

Author	Nabert, K.; Schön, G.; Redeker, T.
Year	1992
Title	Sicherheitstechnische Kenngrößen brennbarer Gase und Dämpfe
Publisher	Deutscher Eichverlag
Publisher City	Braunschweig
Language	GERM

Boiling point

1941

Berger, H.

1013.25 hPa

80 °C

UTI: 15-646-5087/0-39

UTI: 15-646-5087/0-39;
Line no	Boiling temperature	Pressure
	defined value at atmospheric pressure saturated property of pure substance	saturated
1	80 °C	1013.25 hPa

Bibliographic data

Title	Brennbare Gase, Flüssigkeiten und feste Stoffe
Author	Berger, H.
Year	1941
Publisher	Edmund Stein u. Co.
Publisher City	Potsdam
Language	GERM

1950

1013.25 hPa

80 °C

UTI: 1-646-5072/0-39

UTI: 1-646-5072/0-39;
Line no	Boiling temperature	Pressure
	defined value at atmospheric pressure saturated property of pure substance	saturated
1	80 °C	1013.25 hPa

Bibliographic data

Title	Loss Prevention Bulletin No. 36.10: Properties of Flammable Liquids, Gases and Solids
Year	1950
Journal Title	The Factory Mutual Engineering Division;Boston, Ma
Publisher	The Factory Mutual Engineering Division
Publisher City	Boston
Language	ENGL

1950

PTB

1013.25 hPa

80 °C

UTI: 8-646-5081/0-39

UTI: 8-646-5081/0-39;
Line no	Boiling temperature	Pressure
	defined value at atmospheric pressure saturated property of pure substance	saturated
1	80 °C	1013.25 hPa

Bibliographic data

Author	PTB
Year	1950
Title	Tabelle des Labors III-B
Database	PTB
Publisher	PTB, Labor III-B; Braunschweig
Language	GERM

1963

Nabert, K.; Schön, G.

1013.25 hPa

80 °C

UTI: 1000-646-5127/0-39

UTI: 1000-646-5127/0-39;
Line no	Boiling temperature	Pressure
	defined value at atmospheric pressure property of pure substance
1	80 °C	1013.25 hPa

Bibliographic data

Author	Nabert, K.; Schön, G.
Year	1963
Title	Sicherheitstechnische Kennzahlen brennbarer Gase und Dämpfe (mit 6. Nachtrag)
Publisher	Deutscher Eichverlag
Publisher City	Braunschweig
Abstract English	Safety values of about 1000 flammable gases and vapors: Explosion limits, ignition temperatures, flash points, explosion pressures.
Language	GERM

Density

1941

Berger, H.

1013.25 hPa

20 °C

0.805 g/cm³

UTI: 15-646-5082/0-39

UTI: 15-646-5082/0-39;
Line no	Density	Temperature	Pressure
	defined value at atmospheric pressure and room temperature property of pure substance	at atmospheric pressure and room temperature property of pure substance	at atmospheric pressure and room temperature
1	0.805 g/cm³	20 °C	1013.25 hPa

Bibliographic data

Title	Brennbare Gase, Flüssigkeiten und feste Stoffe
Author	Berger, H.
Year	1941
Publisher	Edmund Stein u. Co.
Publisher City	Potsdam
Language	GERM

1950

1013.25 hPa

20 °C

0.805 g/cm³

UTI: 1-646-5065/0-39

UTI: 1-646-5065/0-39;
Line no	Density	Temperature	Pressure
	defined value at atmospheric pressure and room temperature property of pure substance	at atmospheric pressure and room temperature property of pure substance	at atmospheric pressure and room temperature
1	0.805 g/cm³	20 °C	1013.25 hPa

Bibliographic data

Title	Loss Prevention Bulletin No. 36.10: Properties of Flammable Liquids, Gases and Solids
Year	1950
Journal Title	The Factory Mutual Engineering Division;Boston, Ma
Publisher	The Factory Mutual Engineering Division
Publisher City	Boston
Language	ENGL

1950

PTB

1013.25 hPa

20 °C

0.805 g/cm³

UTI: 8-646-5077/0-39

UTI: 8-646-5077/0-39;
Line no	Density	Temperature	Pressure
	defined value at atmospheric pressure and room temperature property of pure substance	at atmospheric pressure and room temperature property of pure substance	at atmospheric pressure and room temperature
1	0.805 g/cm³	20 °C	1013.25 hPa

Bibliographic data

Author	PTB
Year	1950
Title	Tabelle des Labors III-B
Database	PTB
Publisher	PTB, Labor III-B; Braunschweig
Language	GERM

1963

Nabert, K.; Schön, G.

1013.25 hPa

20 °C

0.8 g/cm³

UTI: 1000-646-5128/0-39

UTI: 1000-646-5128/0-39;
Line no	Density	Temperature	Pressure
	defined value at atmospheric pressure and room temperature property of pure substance	recommended value at atmospheric pressure and room temperature property of pure substance	recommended value at atmospheric pressure and room temperature
1	0.8 g/cm³	20 °C	1013.25 hPa

Bibliographic data

Author	Nabert, K.; Schön, G.
Year	1963
Title	Sicherheitstechnische Kennzahlen brennbarer Gase und Dämpfe (mit 6. Nachtrag)
Publisher	Deutscher Eichverlag
Publisher City	Braunschweig
Abstract English	Safety values of about 1000 flammable gases and vapors: Explosion limits, ignition temperatures, flash points, explosion pressures.
Language	GERM

Melting point

1941

Berger, H.

-86 °C

UTI: 15-646-5086/0-39

UTI: 15-646-5086/0-39;
Line no	Melting temperature
	defined value at atmospheric pressure property of pure substance
1	-86 °C

Bibliographic data

Title	Brennbare Gase, Flüssigkeiten und feste Stoffe
Author	Berger, H.
Year	1941
Publisher	Edmund Stein u. Co.
Publisher City	Potsdam
Language	GERM

1950

-86 °C

UTI: 1-646-5071/0-39

UTI: 1-646-5071/0-39;
Line no	Melting temperature
	defined value at atmospheric pressure property of pure substance
1	-86 °C

Bibliographic data

Title	Loss Prevention Bulletin No. 36.10: Properties of Flammable Liquids, Gases and Solids
Year	1950
Journal Title	The Factory Mutual Engineering Division;Boston, Ma
Publisher	The Factory Mutual Engineering Division
Publisher City	Boston
Language	ENGL

1963

Nabert, K.; Schön, G.

1013.25 hPa

-86 °C

UTI: 1000-646-5133/0-39

UTI: 1000-646-5133/0-39;
Line no	Melting temperature	Pressure
	defined value at atmospheric pressure saturated property of pure substance	recommended value at atmospheric pressure saturated
1	-86 °C	1013.25 hPa

Bibliographic data

Author	Nabert, K.; Schön, G.
Year	1963
Title	Sicherheitstechnische Kennzahlen brennbarer Gase und Dämpfe (mit 6. Nachtrag)
Publisher	Deutscher Eichverlag
Publisher City	Braunschweig
Abstract English	Safety values of about 1000 flammable gases and vapors: Explosion limits, ignition temperatures, flash points, explosion pressures.
Language	GERM

Relative gas density

1941

Berger, H.

2.41

UTI: 15-646-5083/0-39

UTI: 15-646-5083/0-39;
Line no	Relative gas density
	defined value property of pure substance
1	2.41

Bibliographic data

Title	Brennbare Gase, Flüssigkeiten und feste Stoffe
Author	Berger, H.
Year	1941
Publisher	Edmund Stein u. Co.
Publisher City	Potsdam
Language	GERM

1950

2.41

UTI: 1-646-5066/0-39

UTI: 1-646-5066/0-39;
Line no	Relative gas density
	defined value property of pure substance
1	2.41

Bibliographic data

Title	Loss Prevention Bulletin No. 36.10: Properties of Flammable Liquids, Gases and Solids
Year	1950
Journal Title	The Factory Mutual Engineering Division;Boston, Ma
Publisher	The Factory Mutual Engineering Division
Publisher City	Boston
Language	ENGL

1950

PTB

2.41

UTI: 8-646-5078/0-39

UTI: 8-646-5078/0-39;
Line no	Relative gas density
	defined value property of pure substance
1	2.41

Bibliographic data

Author	PTB
Year	1950
Title	Tabelle des Labors III-B
Database	PTB
Publisher	PTB, Labor III-B; Braunschweig
Language	GERM

1963

Nabert, K.; Schön, G.

2.48

UTI: 1000-646-5129/0-39

UTI: 1000-646-5129/0-39;
Line no	Relative gas density
	defined value property of pure substance
1	2.48

Bibliographic data

Author	Nabert, K.; Schön, G.
Year	1963
Title	Sicherheitstechnische Kennzahlen brennbarer Gase und Dämpfe (mit 6. Nachtrag)
Publisher	Deutscher Eichverlag
Publisher City	Braunschweig
Abstract English	Safety values of about 1000 flammable gases and vapors: Explosion limits, ignition temperatures, flash points, explosion pressures.
Language	GERM

Solubility in water

2009

Physikalisch-Technische Bundesanstalt (PTB)

20 °C

292 g/l

UTI: 228-646-5123/0-39

UTI: 228-646-5123/0-39;
Line no	Solubility in water	Temperature
	defined value property of pure substance	property of pure substance
1	292 g/l	20 °C

Bibliographic data

Author	Physikalisch-Technische Bundesanstalt (PTB)
Year	2009
Title	Wasserlöslichkeit
Database	PTB
Publisher	Datenbank PTB-Lab. 3.43
Language	GERM

The oxidizing agent is air with an oxygen content of 20.95 % by volume. In the data base it is usually not specified as mixture component. Exceptions are highlighted.
Pressure values are absolute, not gauge pressures.
Impurities can strongly influence characteristic safety data, particulary if the properties of the impurity considerably deviate from the respective properties of the pure substance.
Safety characteristics are only displayed if evaluated data are available.
Values can be cited by using the UTI number of the table (Uniform Table Identifier).

Color Codes: recommended value no recommendation do not use value

Autoignition Temperature

Autoignition Temperature as a function of pressure (measured in 500-ml-autoclave)

1998

Gödde, M.

1.2 bar ... 15 bar

200 °C ... 325 °C

UTI: 208-646-5104/0-39

Autoignition Temperature as a function of pressure (measured in 500-ml-autoclave)
UTI: 208-646-5104/0-39;
Line no	Pressure	Autoignition Temperature
	recommended value experimental	recommended value experimental property of pure substance
1	1.2 bar	325 °C
2	1.9 bar	290 °C
3	3.8 bar	245 °C
4	15 bar	200 °C

Bibliographic data

Title	Zündtemperaturen organischer Verbindungen in Abhängigkeit von chemischer Struktur und Druck; Dissertation TU Braunschweig
Author	Gödde, M.
Year	1998
Abstract English	Autoignition temperatures of organic compounds (alkanes, ketones, esters) at ambient pressure and elevated pressure in a 500-ml- Autoclave
Abstract German	Zündtemperaturen organischer Verbindungen (Alkane, Ketone, Ester) bei Normaldruck und erhöhtem Druck in einem 500-ml-Autoklaven
Publisher	PTB-Bericht Th-Ex-8, Wirtschaftsverlag NW
Language	GERM

1948

Scott, G.S; Jones, G.W.; Scott, F.E.

514 °C

UTI: 26-646-5091/0-39

UTI: 26-646-5091/0-39;
Line no	Autoignition Temperature
	methode not internationally standardized property of pure substance
1	514 °C

Bibliographic data

Title	Determination of Ignition Temperatures of Combustible Liquids and Gases
Author	Scott, G.S; Jones, G.W.; Scott, F.E.
Year	1948
Journal Title	Anal. Chem.
Volume	20
Issue	3
Pages	238-241
Publisher	Anal. Chem.
Language	ENGL

1950

516 °C

UTI: 1-646-5070/0-39

UTI: 1-646-5070/0-39;
Line no	Autoignition Temperature
	methode not internationally standardized property of pure substance
1	516 °C

Bibliographic data

Title	Loss Prevention Bulletin No. 36.10: Properties of Flammable Liquids, Gases and Solids
Year	1950
Journal Title	The Factory Mutual Engineering Division;Boston, Ma
Publisher	The Factory Mutual Engineering Division
Publisher City	Boston
Language	ENGL

1953

Matson, A.F.; Dufour, R.E.

505 °C

UTI: 34-646-5093/0-39

UTI: 34-646-5093/0-39;
Line no	Autoignition Temperature
	methode not internationally standardized property of pure substance
1	505 °C

Bibliographic data

Title	The Lower Limit of Flammability and the Autogenous Ignition Temperature of Certain Common Solvent Vapors Encountered in Ovens
Author	Matson, A.F.; Dufour, R.E.
Year	1953
Publisher	Underwriters Laboratories, Inc.
Publisher City	Chicago
Language	ENGL

1953

Matson, A.F.; Dufour, R.E.

590 °C ... 663 °C

UTI: 34-646-5094/0-39

UTI: 34-646-5094/0-39;
Line no	Autoignition Temperature
	methode not internationally standardized property of pure substance
1	590 °C ... 663 °C

Bibliographic data

Title	The Lower Limit of Flammability and the Autogenous Ignition Temperature of Certain Common Solvent Vapors Encountered in Ovens
Author	Matson, A.F.; Dufour, R.E.
Year	1953
Publisher	Underwriters Laboratories, Inc.
Publisher City	Chicago
Language	ENGL

1963

Nabert, K.; Schön, G.

505 °C

UTI: 1000-646-5130/0-39

UTI: 1000-646-5130/0-39;
Line no	Autoignition Temperature
	according to german standard property of pure substance
1	505 °C [A]

[A] DIN 51794: Testing of mineral oil hydrocarbons - Determination of ignition temperature; measurements are technically identical to those of ISO/IEC 80079-20-1 but results are treated differently.

Bibliographic data

Author	Nabert, K.; Schön, G.
Year	1963
Title	Sicherheitstechnische Kennzahlen brennbarer Gase und Dämpfe (mit 6. Nachtrag)
Publisher	Deutscher Eichverlag
Publisher City	Braunschweig
Abstract English	Safety values of about 1000 flammable gases and vapors: Explosion limits, ignition temperatures, flash points, explosion pressures.
Language	GERM

1997

Physikalisch-Technische Bundesanstalt (PTB)

475 °C

UTI: 4007-646-5144/0-39

UTI: 4007-646-5144/0-39;
Line no	Autoignition Temperature
	recommended value experimental international standard method property of pure substance
1	475 °C [A]

[A] IEC 79-4: Method of Test for Ignition Temperature, Electrical Apparatus for Explosive G; Replaced by IEC-60079-20-1 in 1975

Bibliographic data

Author	Physikalisch-Technische Bundesanstalt (PTB)
Year	1997
Title	Sicherheitstechnische Kenngrößen: Messwerte 1997 des PTB-Laboratoriums 3.31
Database	PTB
Publisher	Datenbank PTB-Lab. 3.31
Language	GERM

Evaporation number

1963

Nabert, K.; Schön, G.

UTI: 1000-646-5132/0-39

UTI: 1000-646-5132/0-39;
Line no	Evaporation number
	recommended value experimental property of pure substance
1	6

Bibliographic data

Author	Nabert, K.; Schön, G.
Year	1963
Title	Sicherheitstechnische Kennzahlen brennbarer Gase und Dämpfe (mit 6. Nachtrag)
Publisher	Deutscher Eichverlag
Publisher City	Braunschweig
Abstract English	Safety values of about 1000 flammable gases and vapors: Explosion limits, ignition temperatures, flash points, explosion pressures.
Language	GERM

1946

Freytag, H.

UTI: 6-646-5076/0-39

UTI: 6-646-5076/0-39;
Line no	Evaporation number
	property of pure substance
1	3 [1]

[1] relative to acetone

Bibliographic data

Title	Merkblatt über Kennzahlen brennbarer Gase und Dämpfe
Author	Freytag, H.
Year	1946
Publisher	Magistrat von Gross-Berlin, Abteilung für Arbeit, Hauptamt für Arbeitsschutz
Publisher City	Berlin
Language	GERM

Flash point

2007

Physikalisch-Technische Bundesanstalt (PTB)

-7.5 °C

UTI: 4027-646-5148/0-39

UTI: 4027-646-5148/0-39;
Line no	Flash point
	recommended value experimental closed cup property of pure substance
1	-7.5 °C [A]

[A] DIN EN ISO 13736: Determination of flash point - Abel closed-cup method; German version of EN ISO 13736:2021 + A1:2022

Bibliographic data

Author	Physikalisch-Technische Bundesanstalt (PTB)
Year	2007
Title	Sicherheitstechnische Kenngrößen: Messwerte 2007 des PTB-Laboratoriums 3.41
Database	PTB
Publisher	PTB-Lab. 3.41
Language	GERM

1941

Berger, H.

-1 °C ... 10 °C

UTI: 15-646-5088/0-39

UTI: 15-646-5088/0-39;
Line no	Flash point
	closed cup property of pure substance
1	-1 °C
2	10 °C

Bibliographic data

Title	Brennbare Gase, Flüssigkeiten und feste Stoffe
Author	Berger, H.
Year	1941
Publisher	Edmund Stein u. Co.
Publisher City	Potsdam
Language	GERM

1946

Freytag, H.

-14 °C

UTI: 6-646-5073/0-39

UTI: 6-646-5073/0-39;
Line no	Flash point
	closed cup property of pure substance
1	-14 °C

Bibliographic data

Title	Merkblatt über Kennzahlen brennbarer Gase und Dämpfe
Author	Freytag, H.
Year	1946
Publisher	Magistrat von Gross-Berlin, Abteilung für Arbeit, Hauptamt für Arbeitsschutz
Publisher City	Berlin
Language	GERM

1950

-1 °C

UTI: 1-646-5067/0-39

UTI: 1-646-5067/0-39;
Line no	Flash point
	closed cup property of pure substance
1	-1 °C

Bibliographic data

Title	Loss Prevention Bulletin No. 36.10: Properties of Flammable Liquids, Gases and Solids
Year	1950
Journal Title	The Factory Mutual Engineering Division;Boston, Ma
Publisher	The Factory Mutual Engineering Division
Publisher City	Boston
Language	ENGL

1963

Nabert, K.; Schön, G.

-1 °C

UTI: 1000-646-5125/0-39

UTI: 1000-646-5125/0-39;
Line no	Flash point
	do not use experimental closed cup property of pure substance
1	-1 °C

Bibliographic data

Author	Nabert, K.; Schön, G.
Year	1963
Title	Sicherheitstechnische Kennzahlen brennbarer Gase und Dämpfe (mit 6. Nachtrag)
Publisher	Deutscher Eichverlag
Publisher City	Braunschweig
Abstract English	Safety values of about 1000 flammable gases and vapors: Explosion limits, ignition temperatures, flash points, explosion pressures.
Language	GERM

1998

Physikalisch-Technische Bundesanstalt (PTB)

-10 °C

UTI: 4008-646-5145/0-39

UTI: 4008-646-5145/0-39;
Line no	Flash point
	experimental closed cup property of pure substance
1	-10 °C

Bibliographic data

Author	Physikalisch-Technische Bundesanstalt (PTB)
Year	1998
Title	Sicherheitstechnische Kenngrößen: Messwerte 1998 des PTB-Laboratoriums 3.31
Database	PTB
Publisher	Datenbank PTB-Lab. 3.31
Language	GERM

Limiting value for flammability (Tci)

2008

Physikalisch-Technische Bundesanstalt (PTB)

2.4 Mol%

UTI: 232-646-5124/0-39

UTI: 232-646-5124/0-39;
Line no	Limiting value for flammability (Tci)
	recommended value property of pure substance
1	2.4 Mol%

Bibliographic data

Author	Physikalisch-Technische Bundesanstalt (PTB)
Year	2008
Title	Draft for the revision of ISO 10156 'Gas cylinders - Gas and gas mixture - Determination of fire potential and oxidizing ability'
Database	PTB
Publisher	Datenbank PTB-Lab. 3.43
Language	ENGL

Explosion limits

Lower explosion limit

Lower Explosion Limit as a function of temperature

1993

Physikalisch-Technische Bundesanstalt (PTB)

100 °C ... 180 °C

29 g/m³ ... 38 g/m³

UTI: 4003-646-5142/0-39

Lower Explosion Limit as a function of temperature
UTI: 4003-646-5142/0-39;
Line no	Temperature	Lower explosion limit
	experimental property of pure substance	recommended value experimental at atmospheric pressure property of pure substance
1	100 °C	38 g/m³ ⚠
2	150 °C	32 g/m³ ⚠
3	180 °C	29 g/m³ ⚠

⚠ The reference for the specification in g/m³ is the molar volume at 20 °C

Bibliographic data

Author	Physikalisch-Technische Bundesanstalt (PTB)
Year	1993
Title	Sicherheitstechnische Kenngrößen: Messwerte 1993 des PTB-Laboratoriums 3.41
Database	PTB
Publisher	Datenbank PTB-Lab. 3.44
Language	GERM

1941

Berger, H.

1.8 Vol%

UTI: 15-646-5084/0-39

UTI: 15-646-5084/0-39;
Line no	Lower explosion limit
	property of pure substance
1	1.8 Vol%

Bibliographic data

Title	Brennbare Gase, Flüssigkeiten und feste Stoffe
Author	Berger, H.
Year	1941
Publisher	Edmund Stein u. Co.
Publisher City	Potsdam
Language	GERM

1946

Freytag, H.

54 g/m³

UTI: 6-646-5074/0-39

UTI: 6-646-5074/0-39;
Line no	Lower explosion limit
	property of pure substance
1	54 g/m³ ⚠

⚠ The reference for the specification in g/m³ is the molar volume at 20 °C

Bibliographic data

Title	Merkblatt über Kennzahlen brennbarer Gase und Dämpfe
Author	Freytag, H.
Year	1946
Publisher	Magistrat von Gross-Berlin, Abteilung für Arbeit, Hauptamt für Arbeitsschutz
Publisher City	Berlin
Language	GERM

1950

1.8 Vol%

UTI: 1-646-5068/0-39

UTI: 1-646-5068/0-39;
Line no	Lower explosion limit
	property of pure substance
1	1.8 Vol%

Bibliographic data

Title	Loss Prevention Bulletin No. 36.10: Properties of Flammable Liquids, Gases and Solids
Year	1950
Journal Title	The Factory Mutual Engineering Division;Boston, Ma
Publisher	The Factory Mutual Engineering Division
Publisher City	Boston
Language	ENGL

1950

PTB

1.8 Vol%

UTI: 8-646-5079/0-39

UTI: 8-646-5079/0-39;
Line no	Lower explosion limit
	property of pure substance
1	1.8 Vol%

Bibliographic data

Author	PTB
Year	1950
Title	Tabelle des Labors III-B
Database	PTB
Publisher	PTB, Labor III-B; Braunschweig
Language	GERM

1952

Coward, H.F.; Jones, G.W.

1.8 Vol%

UTI: 22-646-5089/0-39

UTI: 22-646-5089/0-39;
Line no	Lower explosion limit
	property of pure substance
1	1.8 Vol%

Bibliographic data

Title	Limits of Flammability of Gases and Vapours
Author	Coward, H.F.; Jones, G.W.
Year	1952
Publisher	United States Government Printing Office
Publisher City	Washington
Language	ENGL

1963

Nabert, K.; Schön, G.

1.8 Vol% ± 10 %

UTI: 1000-646-5135/0-39

UTI: 1000-646-5135/0-39;
Line no	Lower explosion limit
	property of pure substance
1	1.8 Vol% ± 10 %
2	50 g/m³ ± 10 % ⚠

⚠ The reference for the specification in g/m³ is the molar volume at 20 °C

Bibliographic data

Author	Nabert, K.; Schön, G.
Year	1963
Title	Sicherheitstechnische Kennzahlen brennbarer Gase und Dämpfe (mit 6. Nachtrag)
Publisher	Deutscher Eichverlag
Publisher City	Braunschweig
Abstract English	Safety values of about 1000 flammable gases and vapors: Explosion limits, ignition temperatures, flash points, explosion pressures.
Language	GERM

1993

Physikalisch-Technische Bundesanstalt (PTB)

1.5 Vol%

UTI: 4003-646-5141/0-39

UTI: 4003-646-5141/0-39;
Line no	Lower explosion limit
	recommended value experimental property of pure substance
1	1.5 Vol%
2	45 g/m³ ⚠

⚠ The reference for the specification in g/m³ is the molar volume at 20 °C

Bibliographic data

Author	Physikalisch-Technische Bundesanstalt (PTB)
Year	1993
Title	Sicherheitstechnische Kenngrößen: Messwerte 1993 des PTB-Laboratoriums 3.41
Database	PTB
Publisher	Datenbank PTB-Lab. 3.44
Language	GERM

Upper explosion limit

Upper Explosion Limit as a function of pressure and temperature (9-l-autoclave)

2013

Physikalisch-Technische Bundesanstalt (PTB)

4 bar ... 10 bar

120 °C ... 210 °C

14.6 Vol% ... 23.5 Vol%

UTI: 4033-646-5149/0-39

Upper Explosion Limit as a function of pressure and temperature (9-l-autoclave)
UTI: 4033-646-5149/0-39;
Line no	Temperature	Pressure	Upper explosion limit
	property of pure substance		recommended value experimental property of pure substance
1	120 °C	4 bar	14.6 Vol%
2	150 °C	4 bar	15.8 Vol%
3	180 °C	4 bar	16.5 Vol%
4	180 °C	10 bar	23.5 Vol%
5	210 °C	4 bar	17.8 Vol%

Bibliographic data

Author	Physikalisch-Technische Bundesanstalt (PTB)
Year	2013
Title	Sicherheitstechnische Kenngrößen: Messwerte 2013 des PTB-Laboratoriums 3.71
Database	PTB
Publisher	PTB-Lab. 3.71
Language	GERM

1941

Berger, H.

11.5 Vol%

UTI: 15-646-5085/0-39

UTI: 15-646-5085/0-39;
Line no	Upper explosion limit
	property of pure substance
1	11.5 Vol%

Bibliographic data

Title	Brennbare Gase, Flüssigkeiten und feste Stoffe
Author	Berger, H.
Year	1941
Publisher	Edmund Stein u. Co.
Publisher City	Potsdam
Language	GERM

1946

Freytag, H.

360 g/m³

UTI: 6-646-5075/0-39

UTI: 6-646-5075/0-39;
Line no	Upper explosion limit
	property of pure substance
1	360 g/m³ ⚠

⚠ The reference for the specification in g/m³ is the molar volume at 20 °C

Bibliographic data

Title	Merkblatt über Kennzahlen brennbarer Gase und Dämpfe
Author	Freytag, H.
Year	1946
Publisher	Magistrat von Gross-Berlin, Abteilung für Arbeit, Hauptamt für Arbeitsschutz
Publisher City	Berlin
Language	GERM

1950

11.5 Vol%

UTI: 1-646-5069/0-39

UTI: 1-646-5069/0-39;
Line no	Upper explosion limit
	property of pure substance
1	11.5 Vol%

Bibliographic data

Title	Loss Prevention Bulletin No. 36.10: Properties of Flammable Liquids, Gases and Solids
Year	1950
Journal Title	The Factory Mutual Engineering Division;Boston, Ma
Publisher	The Factory Mutual Engineering Division
Publisher City	Boston
Language	ENGL

1950

PTB

11.5 Vol%

UTI: 8-646-5080/0-39

UTI: 8-646-5080/0-39;
Line no	Upper explosion limit
	property of pure substance
1	11.5 Vol%

Bibliographic data

Author	PTB
Year	1950
Title	Tabelle des Labors III-B
Database	PTB
Publisher	PTB, Labor III-B; Braunschweig
Language	GERM

1952

Coward, H.F.; Jones, G.W.

10 Vol%

UTI: 22-646-5090/0-39

UTI: 22-646-5090/0-39;
Line no	Upper explosion limit
	property of pure substance
1	10 Vol%

Bibliographic data

Title	Limits of Flammability of Gases and Vapours
Author	Coward, H.F.; Jones, G.W.
Year	1952
Publisher	United States Government Printing Office
Publisher City	Washington
Language	ENGL

1963

Nabert, K.; Schön, G.

9.5 Vol% ... 11.5 Vol% ± 5 %

UTI: 1000-646-5134/0-39

UTI: 1000-646-5134/0-39;
Line no	Upper explosion limit
	do not use property of pure substance
1	9.5 Vol% ± 5 %
2	11.5 Vol% ± 5 %
3	285 g/m³ ± 5 % ⚠
4	350 g/m³ ± 5 % ⚠

⚠ The reference for the specification in g/m³ is the molar volume at 20 °C

Bibliographic data

Author	Nabert, K.; Schön, G.
Year	1963
Title	Sicherheitstechnische Kennzahlen brennbarer Gase und Dämpfe (mit 6. Nachtrag)
Publisher	Deutscher Eichverlag
Publisher City	Braunschweig
Abstract English	Safety values of about 1000 flammable gases and vapors: Explosion limits, ignition temperatures, flash points, explosion pressures.
Language	GERM

Upper Explosion Limit as a function of temperature

1996

Physikalisch-Technische Bundesanstalt (PTB)

100 °C

12.3 Vol% ... 12.6 Vol%

UTI: 4006-646-5143/0-39

Upper Explosion Limit as a function of temperature
UTI: 4006-646-5143/0-39;
Line no	Temperature	Upper explosion limit
	experimental property of pure substance	experimental at atmospheric pressure property of pure substance
1	100 °C	12.3 Vol%
2	100 °C	12.6 Vol% [1]
3	100 °C	370 g/m³ ⚠
4	100 °C	378 g/m³ [1] ⚠

[1] larger ignition chamber.UEL in standard apparatus: 12.3 Vol%

⚠ The reference for the specification in g/m³ is the molar volume at 20 °C

Bibliographic data

Author	Physikalisch-Technische Bundesanstalt (PTB)
Year	1996
Title	Sicherheitstechnische Kenngrößen: Messwerte 1996 des PTB-Laboratoriums 3.41
Database	PTB
Publisher	Datenbank PTB-Lab. 3.41
Language	GERM

Upper Explosion Limit as a function of temperature (DIN EN 1839-T)

2006

Physikalisch-Technische Bundesanstalt (PTB)

80 °C ... 180 °C

13.4 Vol% ... 15 Vol%

UTI: 4026-646-5147/0-39

Upper Explosion Limit as a function of temperature (DIN EN 1839-T)
UTI: 4026-646-5147/0-39;
Line no	Temperature	Upper explosion limit
	experimental property of pure substance	recommended value experimental at atmospheric pressure property of pure substance
1	80 °C	13.4 Vol%
2	120 °C	14 Vol%
3	150 °C	14.6 Vol%
4	180 °C	15 Vol%

Bibliographic data

Author	Physikalisch-Technische Bundesanstalt (PTB)
Year	2006
Title	Sicherheitstechnische Kenngrößen: Messwerte 2006 des PTB-Laboratoriums 3.41
Database	PTB
Publisher	PTB-Lab. 3.41
Language	GERM

Lower explosion point

1986

Yagyu, S.

-10 °C

UTI: 200-646-5103/0-39

UTI: 200-646-5103/0-39;
Line no	Lower explosion point
	recommended value experimental property of pure substance
1	-10 °C

Bibliographic data

Title	Diagrams Related to Flashing Temperatures and Flammability Limits
Author	Yagyu, S.
Year	1986
Journal Title	Safety Document of the Research Institute of Indus
Volume	25
Publisher	RIIS
Language	JAPN

Maximum experimental safe gap

1993

Physikalisch-Technische Bundesanstalt (PTB)

0.85 mm

UTI: 4003-646-5140/0-39

UTI: 4003-646-5140/0-39;
Line no	Maximum experimental safe gap
	recommended value experimental property of pure substance
1	0.85 mm [1]

[1] measured at 50 °C and 3.8 Vol.% (Lab. 3.71)

Bibliographic data

Author	Physikalisch-Technische Bundesanstalt (PTB)
Year	1993
Title	Sicherheitstechnische Kenngrößen: Messwerte 1993 des PTB-Laboratoriums 3.41
Database	PTB
Publisher	Datenbank PTB-Lab. 3.44
Language	GERM

Maximum Experimental Safe Gap as a function of temperature and pressure

1991

Physikalisch-Technische Bundesanstalt (PTB)

200 mbar ... 1013 mbar

50 °C ... 100 °C

0.83 mm ... 4.81 mm

UTI: 4801-646-5151/0-39

Maximum Experimental Safe Gap as a function of temperature and pressure
UTI: 4801-646-5151/0-39;
Line no	Pressure	Temperature	Maximum experimental safe gap
	experimental	experimental property of pure substance	recommended value experimental property of pure substance
1	200 mbar	100 °C	4.81 mm
2	250 mbar	50 °C	3.74 mm
3	300 mbar	50 °C	2.92 mm
4	300 mbar	100 °C	2.84 mm
5	400 mbar	100 °C	2.06 mm
6	600 mbar	50 °C	1.45 mm
7	600 mbar	100 °C	1.36 mm
8	1013 mbar	50 °C	0.87 mm
9	1013 mbar	100 °C	0.83 mm

Bibliographic data

Author	Physikalisch-Technische Bundesanstalt (PTB)
Year	1991
Title	Empfohlene Sicherheitstechnische Kenngrößen
Database	PTB
Publisher	Datenbank PTB-AG 3.41/3.71
Language	GERM

Maximum Experimental Safe Gap as a function of temperature and pressure

2014

Physikalisch-Technische Bundesanstalt (PTB)

100 kPa

20 °C ... 50 °C

0.88 mm ... 0.9 mm

UTI: 4034-646-60123/20240725-39

Maximum Experimental Safe Gap as a function of temperature and pressure
UTI: 4034-646-60123/20240725-39;
Line no	Pressure	Temperature	Maximum experimental safe gap
	Parameter of the measurement	Parameter of the measurement	experimental international standard method
1	100 kPa	20 °C	0.9 mm [A]
2	100 kPa	50 °C	0.88 mm

[A] IEC 60079-20-1: Explosive atmospheres - Part 20-1: Material characteristics for gas and vapour classification - Test methods and data; Replaced by ISO/IEC 80079-20-1 in 2017

Bibliographic data

Author	Physikalisch-Technische Bundesanstalt (PTB)
Year	2014
Title	Sicherheitstechnische Kenngrößen: Messwerte 2014 des PTB-Laboratoriums 3.71
Database	PTB
Publisher	PTB-Lab. 3.71
Language	GERM

Maximum explosion pressure

Maximum Explosion Pressure as a function of pressure and temperature

1991

Physikalisch-Technische Bundesanstalt (PTB)

100 mbar ... 1013 mbar

20 °C ... 100 °C

0.7 bar ... 9.5 bar

UTI: 4801-646-5150/0-39

Maximum Explosion Pressure as a function of pressure and temperature
UTI: 4801-646-5150/0-39;
Line no	Pressure	Temperature	Maximum explosion pressure
	experimental	experimental property of pure substance	recommended value experimental property of pure substance
1	100 mbar	20 °C	0.9 bar
2	100 mbar	100 °C	0.7 bar
3	150 mbar	20 °C	1.4 bar
4	200 mbar	20 °C	1.8 bar
5	200 mbar	100 °C	1.5 bar
6	300 mbar	20 °C	2.7 bar
7	400 mbar	100 °C	3.1 bar
8	600 mbar	20 °C	5.7 bar
9	600 mbar	100 °C	4.6 bar
10	1013 mbar	20 °C	9.5 bar
11	1013 mbar	100 °C	7.5 bar

Bibliographic data

Author	Physikalisch-Technische Bundesanstalt (PTB)
Year	1991
Title	Empfohlene Sicherheitstechnische Kenngrößen
Database	PTB
Publisher	Datenbank PTB-AG 3.41/3.71
Language	GERM

1942

Paton, A.P.

8.5 kp/cm²

UTI: 75-646-5097/0-39

UTI: 75-646-5097/0-39;
Line no	Maximum explosion pressure
	property of pure substance
1	8.5 kp/cm²

Bibliographic data

Title	Flameproof Electrical Apparatus. Flange Gap Protection and Container Pressure with a First Series of Industrial Atmospheres
Author	Paton, A.P.
Year	1942
Publisher	The British Electrical and Allied Industries Research Assiociation
Publisher City	London, GB
Language	ENGL

1951

8.5 kp/cm²

UTI: 36-646-5095/0-39

UTI: 36-646-5095/0-39;
Line no	Maximum explosion pressure
	property of pure substance
1	8.5 kp/cm²

Bibliographic data

Year	1951
Title	Flameproof Enclosures
Publisher	Draft International Specification 31(Secretariat)1
Language	ENGL

1963

Nabert, K.; Schön, G.

9.3 bar

UTI: 1000-646-5131/0-39

UTI: 1000-646-5131/0-39;
Line no	Maximum explosion pressure
	recommended value experimental property of pure substance
1	9.3 bar

Bibliographic data

Author	Nabert, K.; Schön, G.
Year	1963
Title	Sicherheitstechnische Kennzahlen brennbarer Gase und Dämpfe (mit 6. Nachtrag)
Publisher	Deutscher Eichverlag
Publisher City	Braunschweig
Abstract English	Safety values of about 1000 flammable gases and vapors: Explosion limits, ignition temperatures, flash points, explosion pressures.
Language	GERM

Minimum ignition energy

1990

Nabert, K.; Schön, G.

0.27 mJ

UTI: 1011-646-5136/0-39

UTI: 1011-646-5136/0-39;
Line no	Minimum ignition energy
	recommended value property of pure substance
1	0.27 mJ [1]

[1] most ignitable mixture 5.3 Vol%

Bibliographic data

Author	Nabert, K.; Schön, G.
Year	1990
Title	Sicherheitstechnische Kennzahlen brennbarer Gase und Dämpfe
Pages	6
Publisher	Deutscher Eichverlag
Publisher City	Braunschweig
Language	GERM

Stoichiometric fraction of combustible substance in mixture with air

2005

Physikalisch-Technische Bundesanstalt (PTB)

3.7 Mol%

UTI: 220-646-5122/0-39

UTI: 220-646-5122/0-39;
Line no	Stoichiometric fraction of combustible substance in mixture with air
	recommended value property of pure substance
1	3.7 Mol%

Bibliographic data

Author	Physikalisch-Technische Bundesanstalt (PTB)
Year	2005
Title	Berechnete molare stöchiometrische Brenngasanteile in Luft (c_stoech)
Database	PTB
Publisher	Datenbank PTB-Lab. 3.43
Language	GERM

Stoichiometric fraction of combustible substance in mixture with oxygen

2005

Physikalisch-Technische Bundesanstalt (PTB)

15.4 Mol%

UTI: 219-646-5121/0-39

UTI: 219-646-5121/0-39;
Line no	Stoichiometric fraction of combustible substance in mixture with oxygen
	recommended value property of pure substance
1	15.4 Mol%

Bibliographic data

Author	Physikalisch-Technische Bundesanstalt (PTB)
Year	2005
Title	Berechnete molare stöchiometrische Brenngasanteile in Sauerstoff
Database	PTB
Publisher	Datenbank PTB-Lab. 3.43
Language	GERM

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2-Butanone

Classification

Physico-Chemical Data

Safety Characteristics of Substance

Safety Characteristics of Substance Mixtures

1-Butanol, 2-Butanone, Air (1-Butanol/2-Butanone mixture)

2-Butanone, Air, Water (2-Butanone/Water mixture)

2-Butanone, Air, Methane (Methane/2-butanone mixture)

2-Butanone, Air, n-Hexane (2-Butanone/Hexane mixture)

2-Butanone, Air, Nitrogen (2-Butanone/Nitrogen/Air mixture)

2-Butanone, Dinitrogen oxide (2-Butanone/dinitrogen oxide mixture)

2-Butanone, Oxygen (2-Butanone/Oxygen mixture)