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CAS Number: 7154-79-2
Sum Formula: C9H20
Molar Mass: 128.3 g/mol
German Synonyms: 2,2,3,3-Tetramethylpentan
English Synonyms: 2,2,3,3-Tetramethylpentane
Temperature Class: T2
Explosion Group: IIA (estimated)
Structural Formula 2,2,3,3-Tetramethylpentane

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 1987 Stephenson, R.M.; Malanowski, S. 5.95517 kPa UTI: 137-1187-19195/0-39
UTI: 137-1187-19195/0-39;
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 < 415 K > 328 K -59.228 K 1398.942 K 5.95517 kPa
Bibliographic data
Author Stephenson, R.M.; Malanowski, S.
Year 1987
Title Handbook of The Thermodynamics of Organic Compounds
Publisher Elsevier; New York, Amsterdam, London
Language ENGL
Boiling point
1 1963 Nabert, K.; Schön, G. 1013.25 hPa 140 °C UTI: 1000-1187-19212/0-39
UTI: 1000-1187-19212/0-39;
Line no Boiling temperature Pressure
  • defined value
  • at atmospheric pressure
  • property of pure substance
1 140 °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 0.76 g/cm3 UTI: 1000-1187-19213/0-39
UTI: 1000-1187-19213/0-39;
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 0.76 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
1 1963 Nabert, K.; Schön, G. 1013.25 hPa -10 °C UTI: 1000-1187-19216/0-39
UTI: 1000-1187-19216/0-39;
Line no Melting temperature Pressure
  • defined value
  • at atmospheric pressure
  • saturated
  • property of pure substance
  • recommended value
  • at atmospheric pressure
  • saturated
1 -10 °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. 4.43 UTI: 1000-1187-19214/0-39
UTI: 1000-1187-19214/0-39;
Line no Relative gas density
  • defined value
  • property of pure substance
1 4.43
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 0.0002 g/l UTI: 228-1187-19209/0-39
UTI: 228-1187-19209/0-39;
Line no Solubility in water Temperature
  • defined value
  • estimated
  • property of pure substance
  • property of pure substance
1 0.0002 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

Autoignition Temperature
1 1963 Nabert, K.; Schön, G. 430 °C UTI: 1000-1187-19215/0-39
UTI: 1000-1187-19215/0-39;
Line no Autoignition Temperature
  • recommended value
  • according to german standard
  • property of pure substance
1 430 °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) 25 °C UTI: 4801-1187-19219/0-39
UTI: 4801-1187-19219/0-39;
Line no Flash point
  • recommended value
  • estimated
  • closed cup
  • property of pure substance
1 25 °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. < 21 °C UTI: 1000-1187-19210/0-39
UTI: 1000-1187-19210/0-39;
Line no Flash point
  • experimental
  • closed cup
  • property of pure substance
1 < 21 °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. 0.8 Vol% ± 10 % UTI: 1000-1187-19217/0-39
UTI: 1000-1187-19217/0-39;
Line no Lower explosion limit
  • recommended value
  • property of pure substance
1 0.8 Vol% ± 10 %
2 40 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 1963 Nabert, K.; Schön, G. 4.9 Vol% ± 5 % UTI: 1000-1187-19218/0-39
UTI: 1000-1187-19218/0-39;
Line no Upper explosion limit
  • recommended value
  • property of pure substance
1 4.9 Vol% ± 5 %
2 270 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) 1.5 Mol% UTI: 220-1187-19208/0-39
UTI: 220-1187-19208/0-39;
Line no Stoichiometric fraction of combustible substance in mixture with air
  • recommended value
  • property of pure substance
1 1.5 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