Substance profile
Cyclohexylamine
Cyclohexylamine is a colorless or yellow liquid with a strong, fishy, amine odor.
01 · Identification
What Cyclohexylamine is
Cyclohexylamine is a colorless or yellow liquid with a strong, fishy, amine odor. It boils at 135 °C, melts at -17.7 °C, is very soluble in water.
Under the GHS it carries the signal word Danger. It is classed as corrosives.
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 |
|---|---|
| H226 | Flammable liquid and vapour. |
| H361f | Suspected of damaging fertility. |
| H312 | Harmful in contact with skin. |
| H302 | Harmful if swallowed. |
| H314 | Causes severe skin burns and eye damage. |
Precautionary statements: P210, P233, P241, P242, P260, P270, P280, P301, P302, P310, P312, P330, P331, P352, P403
03 · Physical and chemical properties
Cyclohexylamine 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 | 134.5 °C (274.1 °F) | at 760 mmHg | HSDB |
| 134.44 °C (274 °F) | NIOSH | ||
| Melting point | -17.7 °C (0.1 °F) | HSDB | |
| -17.78 °C (0 °F) | NIOSH | ||
| -17.72 °C (0.1 °F) | CAMEO | ||
| Density | 0.87 g/cm³ | NIOSH | |
| 0.8647 g/cm³ | at 25 °C | HSDB | |
| Solubility | Very soluble in ethanol, miscible in ether and acetone. | HSDB | |
| Miscible with common organic solvents: alcohol, ethers, ketones, esters, aliphatic hydrocarbons; completely miscible with aromatic hydrocarbons. | HSDB | ||
| SOL IN CHLORINATED HYDROCARBONS, MINERAL OIL, PEANUT OIL AND SOYA BEAN OIL | HSDB | ||
| Vapor pressure | 11 mmHg | NIOSH | |
| 10.1 mmHg | at 25 °C | HSDB | |
| Flash point | 31.11 °C (88 °F) | HSDB | |
| Autoignition temperature | 293.33 °C (560 °F) | HSDB | |
| 293 °C (559.4 °F) | ICSC | ||
| Lower explosive limit (LEL) | 1.5 % by volume | NIOSH | |
| Upper explosive limit (UEL) | 9.4 % by volume | NIOSH | |
| Vapor density | 3.42 (air = 1) | HSDB | |
| Odor threshold | Odor Threshold Low: 2.6 [ppm] | Haz-Map | |
| Odor Threshold High: 110.0 [ppm] | Haz-Map | ||
| Odor thresholds from CHEMINFO | Haz-Map |
Values compiled from PubChem Laboratory Chemical Safety Summary. Temperatures converted to Fahrenheit for reference.
04 · Handling and storage
Storing and handling Cyclohexylamine
Storage conditions
Outside or detached storage is preferred. Avoid oxidizing materials, acid, and sources of halogen. Store in a cool, dry well-ventilated location.
Source: Hazardous Substances Data Bank (HSDB)
Incompatible materials
Oxidizers, organic compounds, acid anhydrides, acid chlorides, acids, lead [Note: Corrosive to copper, aluminum, zinc & galvanized steel].
Source: Hazardous Substances Data Bank (HSDB)
Reactivity
CYCLOHEXYLAMINE neutralizes acids in exothermic reactions to form salts plus water. May be incompatible with isocyanates, halogenated organics, peroxides, phenols (acidic), epoxides, anhydrides, and acid halides. Flammable gaseous hydrogen may be generated in combination with strong reducing agents, such as hydrides.
Source: CAMEO Chemicals
Planning storage for a mix of chemicals? Check Cyclohexylamine in the storage compatibility matrix →