Skip to main navigation Skip to main content Skip to page footer
Chemsafe logo Chemsafe logo

CAS Number: 109-73-9
Sum Formula: C4H11N
Molar Mass: 73.1 g/mol
German Synonyms: n-Butylamin | 1-Aminobutan | 1-Butanamin
English Synonyms: Butylamine | 1-Butanamine
EC Index Number: 612-005-00-0
EC Number: 203-699-2
Temperature Class: T2
Explosion Group: IIA
Structural Formula 1-Butanamine

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
  • Acute Tox. 4: acute oral toxicity, category 4
  • Acute Tox. 4: acute dermal toxicity, category 4
  • Acute Tox. 4: acute toxicity by inhalation, category 4
  • Skin Corr. 1A: skin corrosion, category 1A
GHS Pictogram:
pictogram flammable
pictogram corrosive
pictogram harmful





GHS Signal Word: Danger
GHS Hazard Statement:
  • H225: Highly flammable liquid and vapour.
  • H332: Harmful if inhaled.
  • H312: Harmful in contact with skin.
  • H302: Harmful if swallowed.
  • H314: Causes severe skin burns and eye damage.

Antoine parameters
1 DECHEMA 7.213 Torr UTI: 1100-661-5823/0-39
UTI: 1100-661-5823/0-39;
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 < 100 °C > -14 °C 224.19 °C 1308.4 °C 7.213 Torr
Bibliographic data
Author DECHEMA
Title Antoinekonstanten
Database PTB
Publisher Detherm
Boiling point
1 1963 Nabert, K.; Schön, G. 1013.25 hPa 78 °C UTI: 1000-661-5814/0-39
UTI: 1000-661-5814/0-39;
Line no Boiling temperature Pressure
  • defined value
  • at atmospheric pressure
  • property of pure substance
1 78 °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
1 1963 Nabert, K.; Schön, G. 1013.25 hPa 20 °C 0.75 g/cm3 UTI: 1000-661-5815/0-39
UTI: 1000-661-5815/0-39;
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 0.75 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
2 1991 Physikalisch-Technische Bundesanstalt (PTB) 1013.25 hPa 20 °C 0.74 g/cm3 UTI: 4801-661-5826/0-39
UTI: 4801-661-5826/0-39;
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 0.74 g/cm3 20 °C 1013.25 hPa
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
Diffusion coefficient
1 1963 Nabert, K.; Schön, G. 20 °C 0.10 cm2/s UTI: 1000-661-5818/0-39
UTI: 1000-661-5818/0-39;
Line no Diffusion coefficient Temperature
  • defined value
  • at room temperature
  • property of pure substance
  • recommended value
  • at room temperature
  • property of pure substance
1 0.10 cm2/s 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
Melting point
1 1963 Nabert, K.; Schön, G. 1013.25 hPa -50 °C UTI: 1000-661-5819/0-39
UTI: 1000-661-5819/0-39;
Line no Melting temperature Pressure
  • defined value
  • at atmospheric pressure
  • saturated
  • property of pure substance
  • recommended value
  • at atmospheric pressure
  • saturated
1 -50 °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
1 1963 Nabert, K.; Schön, G. 2.52 UTI: 1000-661-5816/0-39
UTI: 1000-661-5816/0-39;
Line no Relative gas density
  • defined value
  • property of pure substance
1 2.52
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
1 2009 Physikalisch-Technische Bundesanstalt (PTB) UTI: 228-661-5811/0-39
UTI: 228-661-5811/0-39;
Line no Solubility in water
  • defined value
  • property of pure substance
1 miscible with water [1]
[1] miscible with water
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
1 Autoignition Temperature as a function of pressure (measured in 500-ml-autoclave) 2005 Physikalisch-Technische Bundesanstalt (PTB) 2 bar ... 10 bar 216 °C ... 280 °C UTI: 4025-661-5824/0-39
Autoignition Temperature as a function of pressure (measured in 500-ml-autoclave)
UTI: 4025-661-5824/0-39;
Line no Pressure Autoignition Temperature
  • recommended value
  • experimental
  • recommended value
  • experimental
  • property of pure substance
1 2 bar 280 °C
2 5 bar 258 °C
3 10 bar 216 °C
Bibliographic data
Author Physikalisch-Technische Bundesanstalt (PTB)
Year 2005
Title Sicherheitstechnische Kenngrößen: Messwerte 2005 des PTB-Laboratoriums 3.41
Database PTB
Publisher PTB-Lab. 3.41
Language GERM
2 1963 Nabert, K.; Schön, G. 310 °C UTI: 1000-661-5817/0-39
UTI: 1000-661-5817/0-39;
Line no Autoignition Temperature
  • recommended value
  • according to german standard
  • property of pure substance
1 310 °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
Flash point
1 1991 Physikalisch-Technische Bundesanstalt (PTB) -14 °C UTI: 4801-661-5828/0-39
UTI: 4801-661-5828/0-39;
Line no Flash point
  • recommended value
  • experimental
  • closed cup
  • property of pure substance
1 -14 °C
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
2 1950 < 4 °C UTI: 1-661-5791/0-39
UTI: 1-661-5791/0-39;
Line no Flash point
  • closed cup
  • property of pure substance
1 < 4 °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
3 1963 Nabert, K.; Schön, G. -12 °C UTI: 1000-661-5812/0-39
UTI: 1000-661-5812/0-39;
Line no Flash point
  • experimental
  • closed cup
  • property of pure substance
1 -12 °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
Explosion limits
Lower explosion limit
1 1963 Nabert, K.; Schön, G. 1.7 Vol% ± 10 % UTI: 1000-661-5820/0-39
UTI: 1000-661-5820/0-39;
Line no Lower explosion limit
  • recommended value
  • property of pure substance
1 1.7 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
2 1952 Coward, H.F.; Jones, G.W. 1.7 Vol% UTI: 22-661-5792/0-39
UTI: 22-661-5792/0-39;
Line no Lower explosion limit
  • property of pure substance
1 1.7 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
Upper explosion limit
1 Upper Explosion Limit as a function of temperature 2005 Physikalisch-Technische Bundesanstalt (PTB) 100 °C ... 180 °C 14 Vol% ... 18.6 Vol% UTI: 4025-661-5825/0-39
Upper Explosion Limit as a function of temperature
UTI: 4025-661-5825/0-39;
Line no Temperature Upper explosion limit
  • experimental
  • property of pure substance
  • recommended value
  • experimental
  • at atmospheric pressure
  • property of pure substance
1 100 °C 14 Vol%
2 150 °C 15.7 Vol%
3 180 °C 18.6 Vol%
Bibliographic data
Author Physikalisch-Technische Bundesanstalt (PTB)
Year 2005
Title Sicherheitstechnische Kenngrößen: Messwerte 2005 des PTB-Laboratoriums 3.41
Database PTB
Publisher PTB-Lab. 3.41
Language GERM
2 1952 Coward, H.F.; Jones, G.W. 9.8 Vol% UTI: 22-661-5793/0-39
UTI: 22-661-5793/0-39;
Line no Upper explosion limit
  • property of pure substance
1 9.8 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
3 1963 Nabert, K.; Schön, G. 10 Vol% ± 5 % UTI: 1000-661-5821/0-39
UTI: 1000-661-5821/0-39;
Line no Upper explosion limit
  • recommended value
  • property of pure substance
1 10 Vol% ± 5 %
2 300 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
4 1991 Physikalisch-Technische Bundesanstalt (PTB) 304 g/m3 ± 5 % UTI: 4801-661-5827/0-39
UTI: 4801-661-5827/0-39;
Line no Upper explosion limit
  • recommended value
  • experimental
  • property of pure substance
1 304 g/m3 ± 5 % ⚠
⚠ The reference for the specification in g/m3 is the molar volume at 20 °C
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
1 1992 Nabert, K.; Schön, G.; Redeker, T. 0.92 mm UTI: 1050-661-5822/0-39
UTI: 1050-661-5822/0-39;
Line no Maximum experimental safe gap
  • recommended value
  • property of pure substance
1 0.92 mm
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
Stoichiometric fraction of combustible substance in mixture with air
1 2005 Physikalisch-Technische Bundesanstalt (PTB) 3.0 Mol% UTI: 220-661-5810/0-39
UTI: 220-661-5810/0-39;
Line no Stoichiometric fraction of combustible substance in mixture with air
  • recommended value
  • property of pure substance
1 3.0 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

Loading, Please wait.... Loading...