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CAS Number: 598-75-4
Sum Formula: C5H12O
Molar Mass: 88.1 g/mol
German Synonyms: 3-Methyl-2-butanol | Isoamylalkohol, sec. | Methyl-i-propylcarbinol | i-Amylalkohol, sec. | (+/-)-Isopentylalkohol, sec. | (+/-)-Isoamylalkohol, sec. | 3-Methyl-2-butanol | 2-Methylbutanol-3
English Synonyms: Methyl-i-propylcarbinol | 2-Methylbutanol-3 | 3-Methyl-2-butanol
EC Index Number: 603-006-00-7
EC Number: 209-950-2
Temperature Class: T2
Explosion Group: IIA (estimated)
Structural Formula 3-Methyl-2-butanol

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. 3: flammable liquids, category 3
GHS Pictogram:
pictogram flammable





GHS Signal Word: Warning
GHS Hazard Statement:
  • H226: Flammable liquid and vapour.

Antoine parameters
1 DECHEMA 8.2582 Torr UTI: 1100-602-3731/0-39
UTI: 1100-602-3731/0-39;
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 < 132 °C > 23 °C 230 °C 1838 °C 8.2582 Torr
Bibliographic data
Author DECHEMA
Title Antoinekonstanten
Database PTB
Publisher Detherm
Boiling point
1 1941 Berger, H. 1013.25 hPa 113 °C UTI: 15-602-3707/0-39
UTI: 15-602-3707/0-39;
Line no Boiling temperature Pressure
  • defined value
  • at atmospheric pressure
  • saturated
  • property of pure substance
  • saturated
1 113 °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
2 1950 1013.25 hPa 113 °C UTI: 1-602-3699/0-39
UTI: 1-602-3699/0-39;
Line no Boiling temperature Pressure
  • defined value
  • at atmospheric pressure
  • saturated
  • property of pure substance
  • saturated
1 113 °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
3 1950 PTB 1013.25 hPa 113 °C UTI: 8-602-3703/0-39
UTI: 8-602-3703/0-39;
Line no Boiling temperature Pressure
  • defined value
  • at atmospheric pressure
  • saturated
  • property of pure substance
  • saturated
1 113 °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
4 1963 Nabert, K.; Schön, G. 1013.25 hPa 112 °C UTI: 1000-602-3727/0-39
UTI: 1000-602-3727/0-39;
Line no Boiling temperature Pressure
  • defined value
  • at atmospheric pressure
  • property of pure substance
1 112 °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
5 1994 1013.25 hPa 113 °C UTI: 16-602-3711/0-39
UTI: 16-602-3711/0-39;
Line no Boiling temperature Pressure
  • defined value
  • at atmospheric pressure
  • saturated
  • property of pure substance
  • saturated
1 113 °C 1013.25 hPa
Bibliographic data
Year 1994
Title Fire-hazard Properties of certain Flammable Liquids, Gases and Volatile Solids
Publisher National Fire Protection Association
Publisher City Boston
Language ENGL
Density
1 1941 Berger, H. 1013.25 hPa 20 °C 0.819 g/cm3 UTI: 15-602-3708/0-39
UTI: 15-602-3708/0-39;
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 0.819 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
2 1950 1013.25 hPa 20 °C 0.819 g/cm3 UTI: 1-602-3700/0-39
UTI: 1-602-3700/0-39;
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 0.819 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
3 1950 PTB 1013.25 hPa 20 °C 0.819 g/cm3 UTI: 8-602-3704/0-39
UTI: 8-602-3704/0-39;
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 0.819 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
4 1963 Nabert, K.; Schön, G. 1013.25 hPa 20 °C 0.82 g/cm3 UTI: 1000-602-3728/0-39
UTI: 1000-602-3728/0-39;
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 0.82 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
Relative gas density
1 1941 Berger, H. 3.04 UTI: 15-602-3709/0-39
UTI: 15-602-3709/0-39;
Line no Relative gas density
  • defined value
  • property of pure substance
1 3.04
Bibliographic data
Title Brennbare Gase, Flüssigkeiten und feste Stoffe
Author Berger, H.
Year 1941
Publisher Edmund Stein u. Co.
Publisher City Potsdam
Language GERM
2 1950 3.04 UTI: 1-602-3701/0-39
UTI: 1-602-3701/0-39;
Line no Relative gas density
  • defined value
  • property of pure substance
1 3.04
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 1950 PTB 3.04 UTI: 8-602-3705/0-39
UTI: 8-602-3705/0-39;
Line no Relative gas density
  • defined value
  • property of pure substance
1 3.04
Bibliographic data
Author PTB
Year 1950
Title Tabelle des Labors III-B
Database PTB
Publisher PTB, Labor III-B; Braunschweig
Language GERM
4 1963 Nabert, K.; Schön, G. 3.04 UTI: 1000-602-3726/0-39
UTI: 1000-602-3726/0-39;
Line no Relative gas density
  • defined value
  • property of pure substance
1 3.04
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) 25 °C 59.3 g/l UTI: 228-602-3723/0-39
UTI: 228-602-3723/0-39;
Line no Solubility in water Temperature
  • defined value
  • property of pure substance
  • property of pure substance
1 59.3 g/l 25 °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

Flash point
1 1991 Physikalisch-Technische Bundesanstalt (PTB) 26 °C UTI: 4801-602-3732/0-39
UTI: 4801-602-3732/0-39;
Line no Flash point
  • recommended value
  • experimental
  • closed cup
  • property of pure substance
1 26 °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 1941 Berger, H. 40 °C UTI: 15-602-3710/0-39
UTI: 15-602-3710/0-39;
Line no Flash point
  • closed cup
  • property of pure substance
1 40 °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
3 1950 39 °C UTI: 1-602-3702/0-39
UTI: 1-602-3702/0-39;
Line no Flash point
  • closed cup
  • property of pure substance
1 39 °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
4 1950 PTB 40 °C UTI: 8-602-3706/0-39
UTI: 8-602-3706/0-39;
Line no Flash point
  • closed cup
  • property of pure substance
1 40 °C
Bibliographic data
Author PTB
Year 1950
Title Tabelle des Labors III-B
Database PTB
Publisher PTB, Labor III-B; Braunschweig
Language GERM
5 1963 Nabert, K.; Schön, G. 30 °C UTI: 1000-602-3724/0-39
UTI: 1000-602-3724/0-39;
Line no Flash point
  • closed cup
  • property of pure substance
1 ca. 30 °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 1991 Physikalisch-Technische Bundesanstalt (PTB) 1.2 Vol% ± 10 % UTI: 4801-602-3734/0-39
UTI: 4801-602-3734/0-39;
Line no Lower explosion limit
  • recommended value
  • experimental
  • property of pure substance
1 1.2 Vol% ± 10 %
2 44 g/m3 ± 10 % ⚠
⚠ 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
2 1963 Nabert, K.; Schön, G. 1.2 Vol% ± 10 % UTI: 1000-602-3729/0-39
UTI: 1000-602-3729/0-39;
Line no Lower explosion limit
  • property of pure substance
1 ca. 1.2 Vol% ± 10 %
2 ca. 44 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
Upper explosion limit
1 1991 Physikalisch-Technische Bundesanstalt (PTB) 10.5 Vol% ± 5 % UTI: 4801-602-3733/0-39
UTI: 4801-602-3733/0-39;
Line no Upper explosion limit
  • recommended value
  • estimated
  • property of pure substance
1 10.5 Vol% ± 5 %
2 385 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
2 1963 Nabert, K.; Schön, G. 8 Vol% ± 5 % UTI: 1000-602-3730/0-39
UTI: 1000-602-3730/0-39;
Line no Upper explosion limit
  • property of pure substance
1 ca. 8 Vol% ± 5 %
2 ca. 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
Stoichiometric fraction of combustible substance in mixture with air
1 2005 Physikalisch-Technische Bundesanstalt (PTB) 2.7 Mol% UTI: 220-602-3722/0-39
UTI: 220-602-3722/0-39;
Line no Stoichiometric fraction of combustible substance in mixture with air
  • recommended value
  • property of pure substance
1 2.7 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

No entry in database