Triptane

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  (Redirected from 2,2,3-Trimethylbutane)
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Not to be confused with triptan, a type of anti-migraine drug, or tryptan, the trade name of tryptophan.
Not to be confused with Triplane.
Triptane
Skeletal formula of triptane
Identifiers
CAS number 464-06-2 YesY
PubChem 10044
ChemSpider 9649 YesY
EC number 207-346-3
UN number 1206
Beilstein Reference 1730756
Jmol-3D images Image 1
Properties
Molecular formula C7H16
Molar mass 100.20 g mol−1
Appearance Colorless liquid
Odor Odorless
Density 0.693 g mL−1
Melting point −26 to −24 °C; −15 to −11 °F; 247 to 249 K
Boiling point 80.8 to 81.2 °C; 177.3 to 178.1 °F; 353.9 to 354.3 K
Vapor pressure 23.2286 kPa (at 37.7 °C)
kH 4.1 nmol Pa−1 kg−1
Refractive index (nD) 1.389
Thermochemistry
Specific
heat capacity
C
213.51 J K−1 mol−1
Std molar
entropy
So298
292.25 J K−1 mol−1
Std enthalpy of
formation
ΔfHo298
−238.0 – −235.8 kJ mol−1
Std enthalpy of
combustion
ΔcHo298
−4.80449 – −4.80349 MJ mol−1
Hazards
GHS pictograms The flame pictogram in the Globally Harmonized System of Classification and Labelling of Chemicals (GHS) The exclamation-mark pictogram in the Globally Harmonized System of Classification and Labelling of Chemicals (GHS) The health hazard pictogram in the Globally Harmonized System of Classification and Labelling of Chemicals (GHS) The environment pictogram in the Globally Harmonized System of Classification and Labelling of Chemicals (GHS)
GHS signal word DANGER
GHS hazard statements H225, H304, H315, H336, H400
GHS precautionary statements P210, P261, P273, P301+310, P331
EU Index 601-008-00-2
EU classification Highly Flammable F Harmful Xn Dangerous for the Environment (Nature) N
R-phrases R11, R38, R50/53, R65, R67
S-phrases (S2), S16, S29, S33
NFPA 704
Flammability code 3: Liquids and solids that can be ignited under almost all ambient temperature conditions. Flash point between 23 and 38 °C (73 and 100 °F). E.g., gasoline) Health code 0: Exposure under fire conditions would offer no hazard beyond that of ordinary combustible material. E.g., sodium chloride Reactivity code 0: Normally stable, even under fire exposure conditions, and is not reactive with water. E.g., liquid nitrogen Special hazards (white): no codeNFPA 704 four-colored diamond
Flash point −7 °C (19 °F; 266 K)
Explosive limits 1–7%
Related compounds
Related alkanes
Except where noted otherwise, data are given for materials in their standard state (at 25 °C (77 °F), 100 kPa)
Infobox references

Triptane, or 2,2,3-trimethylbutane, is an organic chemical compound with the molecular formula C7H16 or (H3C-)3C-C(-CH3)2H. It is therefore an alkane, specifically the most compact and heavily branched of the heptane isomers, the only one with a butane (C4) backbone.

Triptane is commonly used as an anti-knock additive in aviation fuels.

References[edit]

  1. ^ "Triptan - Compound Summary". PubChem Compound. USA: National Center for Biotechnology Information. 26 March 2005. Identification and Related Records. Retrieved 11 March 2012.