2,2-Dimethylpentane
| Names | |
|---|---|
| Preferred IUPAC name
2,2-Dimethylpentane | |
Other names
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| Identifiers | |
3D model (JSmol)
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| 1730757 | |
| ChemSpider | |
| ECHA InfoCard | 100.008.801 |
| EC Number |
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PubChem CID
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| UNII | |
CompTox Dashboard (EPA)
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| Properties | |
| C7H16 | |
| Molar mass | 100.205 g·mol−1 |
| Appearance | Colorless liquid |
| Odor | Odorless |
| Density | 0.67385 g cm−3 (liquid, 20 °C, 1 atm) 0.6695 g cm−3 (liquid, 25 °C, 1 atm) |
| Melting point | −123.7 °C; −190.8 °F; 149.4 K |
| Boiling point | 79.2 °C; 174.5 °F; 352.3 K |
| Structure | |
| 0.0 D | |
| Thermochemistry | |
Heat capacity (C)
|
221.12 J K−1 mol−1 |
Std molar
entropy (S⦵298) |
300.3 J K−1 mol−1 |
Std enthalpy of
formation (ΔfH⦵298) |
−238.5 kJ mol−1 |
Std enthalpy of
combustion (ΔcH⦵298) |
−4802.94 kJ mol−1 |
| Hazards | |
| GHS labelling: | |
| Danger | |
| H225, H304, H315, H335, H336, H410 | |
| P210, P233, P240, P241, P242, P243, P261, P264, P271, P273, P280, P301+P310, P302+P352, P303+P361+P353, P304+P340, P312, P321, P331, P332+P313, P362, P370+P378, P391, P403+P233, P403+P235, P405, P501 | |
| Flash point | 15 °C (59 °F; 288 K) |
| Safety data sheet (SDS) | |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references
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2,2-Dimethylpentane is one of the isomers of heptane. It is also called neoheptane as it contains the (CH3)3C grouping. It has the most extreme properties of the isomers of heptane.