Substance profile
Dicyclohexylamine
Dicyclohexylamine is a colorless liquid with a faint fishy odor.
01 · Identification
What Dicyclohexylamine is
Dicyclohexylamine is a colorless liquid with a faint fishy odor. It boils at 256 °C, melts at -0.1 °C, is 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 |
|---|---|
| H302 | Harmful if swallowed. |
| H314 | Causes severe skin burns and eye damage. |
| H400 | Very toxic to aquatic life. |
| H410 | Very toxic to aquatic life with long lasting effects. |
Precautionary statements: P260, P270, P273, P280, P301, P310, P312, P330, P331, P391, P501
03 · Physical and chemical properties
Dicyclohexylamine 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 | 255.8 °C (492.4 °F) | at 760 mmHg | HSDB |
| 255.78 °C (492.4 °F) | at 760 mmHg | CAMEO | |
| 256 °C (492.8 °F) | ICSC | ||
| Melting point | -0.1 °C (31.8 °F) | HSDB | |
| 20 °C (68 °F) | CAMEO | ||
| Density | 0.9 g/cm³ | ICSC | |
| 0.9104 g/cm³ | at 25 °C | HSDB | |
| 0.916 g/cm³ | range, midpoint shown, at 15 °C | CAMEO | |
| Solubility | SPARINGLY SOL IN WATER; SOL IN USUAL ORGANIC SOLVENTS; MISCIBLE WITH CYCLOHEXYLAMINE | HSDB | |
| Soluble in ethanol, ether, benzene. | HSDB | ||
| Soluble in oxygenated solvents. | HSDB | ||
| Vapor pressure | 12.001 mmHg | at 37.7 °C | ICSC |
| 0.03 mmHg | Haz-Map | ||
| 3.38X10-2 at 25 °C | at 25 °C | HSDB | |
| Flash point | 105 °C (221 °F) | ICSC | |
| 98.89 °C (210 °F) | above this value | CAMEO | |
| Autoignition temperature | 255 °C (491 °F) | ICSC | |
| Lower explosive limit (LEL) | 0.9 % by volume | ICSC | |
| Upper explosive limit (UEL) | 6.9 % by volume | ICSC | |
| Vapor density | 6.25 (air = 1) | HSDB | |
| 6.25 (air = 1) | at 20 °C | CAMEO |
Values compiled from PubChem Laboratory Chemical Safety Summary. Temperatures converted to Fahrenheit for reference.
04 · Handling and storage
Storing and handling Dicyclohexylamine
Reactivity
DICYCLOHEXYLAMINE reacts with oxidizing agents. Forms crystalline salts with many N-protected amino acids (NTP, 1992). 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 Dicyclohexylamine in the storage compatibility matrix →