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CAS Number: 13475-82-6
Sum Formula: C12H26
Molar Mass: 170.3 g/mol
German Synonyms: i-Dodecan | Isododecan | 2,2,4,6,6-Pentamethylheptan
English Synonyms: 2,2,4,6,6-Pentamethylheptane
EC Number: 236-757-0
Temperature Class: T2
Explosion Group: IIA (estimated)
Structural Formula 2,2,4,6,6-Pentamethylheptane

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.

Boiling point
1 1963 Nabert, K.; Schön, G. 1013.25 hPa 180 °C UTI: 1000-1509-22971/0-39
UTI: 1000-1509-22971/0-39;
Line no Boiling temperature Pressure
  • defined value
  • at atmospheric pressure
  • property of pure substance
1 ca. 180 °C ca. 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: 1000-1509-22972/0-39
UTI: 1000-1509-22972/0-39;
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 0.75 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
Melting point
1 1963 Nabert, K.; Schön, G. -81 °C UTI: 1000-1509-22970/0-39
UTI: 1000-1509-22970/0-39;
Line no Melting temperature
  • defined value
  • at atmospheric pressure
  • property of pure substance
1 -81 °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
Relative gas density
1 1963 Nabert, K.; Schön, G. 5.87 UTI: 1000-1509-22973/0-39
UTI: 1000-1509-22973/0-39;
Line no Relative gas density
  • defined value
  • property of pure substance
1 5.87
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 0.0000 g/l UTI: 228-1509-22968/0-39
UTI: 228-1509-22968/0-39;
Line no Solubility in water Temperature
  • defined value
  • estimated
  • property of pure substance
  • property of pure substance
1 0.0000 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: 1000-1509-22975/0-39
UTI: 1000-1509-22975/0-39;
Line no Autoignition Temperature
  • recommended value
  • international standard method
  • property of pure substance
1 430 °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 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 1963 Nabert, K.; Schön, G. 43 °C UTI: 1000-1509-22974/0-39
UTI: 1000-1509-22974/0-39;
Line no Flash point
  • recommended value
  • closed cup
  • property of pure substance
1 43 °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. 0.5 Vol% ± 10 % UTI: 1000-1509-22977/0-39
UTI: 1000-1509-22977/0-39;
Line no Lower explosion limit
  • recommended value
  • property of pure substance
1 0.5 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. 3.8 Vol% ± 5 % UTI: 1000-1509-22976/0-39
UTI: 1000-1509-22976/0-39;
Line no Upper explosion limit
  • property of pure substance
1 3.8 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) 1.1 Mol% UTI: 220-1509-22967/0-39
UTI: 220-1509-22967/0-39;
Line no Stoichiometric fraction of combustible substance in mixture with air
  • recommended value
  • property of pure substance
1 1.1 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