Substance profile
Methylcyclohexane
Methylcyclohexane is a colorless liquid with a faint, benzene-like odor.
01 · Identification
What Methylcyclohexane is
Methylcyclohexane is a colorless liquid with a faint, benzene-like odor. Its molecular formula is C7H14 and its molecular weight is 98.19 g/mol. It boils at 101 °C, melts at -127 °C, is miscible with water.
Under the GHS it carries the signal word Danger. It is classed as flammable agents - 3rd degree.
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. |
| H304 | May be fatal if swallowed and enters airways. |
| H336 | May cause drowsiness or dizziness. |
| H315 | Causes skin irritation. |
| H411 | Toxic to aquatic life with long lasting effects. |
Precautionary statements: P210, P233, P241, P242, P264, P273, P280, P302, P313, P332, P352, P391, P403, P501
03 · Physical and chemical properties
Methylcyclohexane 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 | 100.9 °C (213.6 °F) | at 760 mmHg | HSDB |
| 101.11 °C (214 °F) | NIOSH | ||
| 101 °C (213.8 °F) | at 760 mmHg | CAMEO | |
| Melting point | -126.6 °C (-195.9 °F) | HSDB | |
| -126.67 °C (-196 °F) | NIOSH | ||
| -126 °C (-194.8 °F) | CAMEO | ||
| Density | 0.77 g/cm³ | NIOSH | |
| 0.7694 g/cm³ | at 20 °C | HSDB | |
| Solubility | SOL IN ALCOHOL, ETHER, ACETONE, BENZENE | HSDB | |
| MISCIBLE WITH PETROLEUM ETHER, CARBON TETRACHLORIDE | HSDB | ||
| 14.0 mg/l at 20 °C | at 20 °C | HSDB | |
| Vapor pressure | 37 mmHg | NIOSH | |
| 83.29 mmHg | CAMEO | ||
| 46 mmHg | at 25 °C | HSDB | |
| Flash point | -3.89 °C (25 °F) | HSDB | |
| Autoignition temperature | 250 °C (482 °F) | HSDB | |
| 258 °C (496.4 °F) | ICSC | ||
| Lower explosive limit (LEL) | 1.2 % by volume | HSDB | |
| Upper explosive limit (UEL) | 6.7 % by volume | HSDB | |
| Vapor density | 3.39 (air = 1) | HSDB | |
| 3.4 (air = 1) | ICSC | ||
| Odor threshold | 630 ug/l | HSDB | |
| Odor Threshold Low: 500.0 [ppm] | Haz-Map | ||
| Odor threshold from CHEMINFO | Haz-Map | ||
| Critical temperature and pressure | 299.05 °C (570.3 °F) | HSDB |
Values compiled from PubChem Laboratory Chemical Safety Summary. Temperatures converted to Fahrenheit for reference.
04 · Handling and storage
Storing and handling Methylcyclohexane
Storage conditions
Storage rooms should be bunded to prevent the spread of escaping liquid & electrical installations should be of flameproof type.
Source: Hazardous Substances Data Bank (HSDB)
Incompatible materials
Strong oxidizers
Source: Hazardous Substances Data Bank (HSDB)
Reactivity
Saturated aliphatic hydrocarbons, such as METHYLCYCLOHEXANE, may be incompatible with strong oxidizing agents like nitric acid. Charring of the hydrocarbon may occur followed by ignition of unreacted hydrocarbon and other nearby combustibles. In other settings, aliphatic saturated hydrocarbons are mostly unreactive. They are not affected by aqueous solutions of acids, alkalis, most oxidizing agents, and most reducing agents.
Source: CAMEO Chemicals
Planning storage for a mix of chemicals? Check Methylcyclohexane in the storage compatibility matrix →