Substance profile
2,4,4-Trimethyl-1-pentene
2,4,4-Trimethyl-1-pentene is a colorless liquid with a gasoline-like odor.
01 · Identification
What 2,4,4-Trimethyl-1-pentene is
2,4,4-Trimethyl-1-pentene is a colorless liquid with a gasoline-like odor. Its molecular formula is C8H16 and its molecular weight is 112.21 g/mol. It boils at 101 °C, melts at -93.5 °C.
Under the GHS it carries the signal word Danger. It is classed as flammable agents - 3rd degree.
Other names for 2,4,4-Trimethyl-1-pentene
- 2,4,4-trimethylpent-1-ene
02 · GHS classification
Hazards and label elements
Harmonised classification under CLP Annex VI. This is the legally binding classification in the EU; other jurisdictions may differ.
| Code | Hazard statement |
|---|---|
| H225 | Highly flammable liquid and vapour. |
| H411 | Toxic to aquatic life with long lasting effects. |
Precautionary statements: P210, P233, P241, P242, P273, P391, P403, P501
03 · Physical and chemical properties
2,4,4-Trimethyl-1-pentene properties
Every value is shown with the conditions it was measured under and the source it came from. Where sources disagree, all values are listed rather than one being picked — the difference is usually a different form of the substance, not an error.
| Property | Value | Conditions | Source |
|---|---|---|---|
| Boiling point | 101.4 °C (214.5 °F) | HSDB | |
| 101 °C (213.8 °F) | ICSC | ||
| 101.4 °C (214.5 °F) | at 760 mmHg | DOE PAC | |
| Melting point | -93.5 °C (-136.3 °F) | HSDB | |
| -93 °C (-135.4 °F) | ICSC | ||
| Density | 0.7 g/cm³ | ICSC | |
| 0.715 g/cm³ | at 20 °C | HSDB | |
| Solubility | Insoluble in water. Soluble in ethyl ether, benzene, carbon tetrachloride | HSDB | |
| Solubility in water: none | ICSC | ||
| Vapor pressure | 44.7 mmHg | at 25 °C | HSDB |
| 75.0062 mmHg | at 38 °C | ICSC | |
| Flash point | -5 °C (23 °F) | HSDB | |
| Autoignition temperature | 391.11 °C (736 °F) | HSDB | |
| 391 °C (735.8 °F) | ICSC | ||
| Lower explosive limit (LEL) | 0.8 % by volume | HSDB | |
| Upper explosive limit (UEL) | 4.8 % by volume | HSDB | |
| Vapor density | 3.8 (air = 1) | HSDB | |
| 3.9 (air = 1) | ICSC | ||
| Critical temperature and pressure | 286.67 °C (548 °F) | HSDB |
Values compiled from PubChem Laboratory Chemical Safety Summary. Temperatures converted to Fahrenheit for reference.
04 · Handling and storage
Storing and handling 2,4,4-Trimethyl-1-pentene
Storage conditions
STORAGE TEMPERATURE: AMBIENT; VENTING: OPEN (FLAME ARRESTER) OR PRESSURE-VACUUM.
Source: Hazardous Substances Data Bank (HSDB)
Incompatible materials
MIXING DIISOBUTYLENE /WITH CHLOROSULFONIC ACID, OLEUM, OR 96% SULFURIC ACID/ ... IN A CLOSED CONTAINER CAUSED TEMPERATURE & PRESSURE TO INCREASE.
Source: Hazardous Substances Data Bank (HSDB)
Planning storage for a mix of chemicals? Check 2,4,4-Trimethyl-1-pentene in the storage compatibility matrix →