Substance profile
4,4-Diaminodiphenylmethane
4,4-Diaminodiphenylmethane is crystals from water or benzene with a faint, amine-like odor.
01 · Identification
What 4,4-Diaminodiphenylmethane is
4,4-Diaminodiphenylmethane is crystals from water or benzene with a faint, amine-like odor. Its molecular formula is C13H14N2 and its molecular weight is 198.26 g/mol. It boils at 398 °C, melts at 92.5 °C.
Under the GHS it carries the signal word Danger. It is classed as hazardous Air Pollutants (HAPs).
Other names for 4,4-Diaminodiphenylmethane
- 4,4'-diaminodiphenylmethane
- 4,4'-methylenedianiline
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 |
|---|---|
| H350 | May cause cancer <state route of exposure if it is conclusively proven that no other routes of exposure cause the hazard>. |
| H341 | Suspected of causing genetic defects <state route of exposure if it is conclusively proven that no other routes of exposure cause the hazard>. |
| H370 | Causes damage to organs <or state all organs affected, if known> <state route of exposure if it is conclusively proven that no other routes of exposure cause the hazard>. |
| H373 | May cause damage to organs <or state all organs affected, if known> through prolonged or repeated exposure <state route of exposure if it is conclusively proven that no other routes of exposure cause the hazard>. |
| H317 | May cause an allergic skin reaction. |
| H411 | Toxic to aquatic life with long lasting effects. |
Precautionary statements: P201, P260, P261, P270, P272, P273, P280, P308, P311, P313, P314, P333, P391, P501
03 · Physical and chemical properties
4,4-Diaminodiphenylmethane 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 | 398 °C (748.4 °F) | HSDB | |
| 397.78 °C (748 °F) | NIOSH | ||
| Melting point | 92.5 °C (198.5 °F) | HSDB | |
| 92.22 °C (198 °F) | NIOSH | ||
| Density | 0.5 g/cm³ | ICSC | |
| 1.15 g/cm³ | OSHA | ||
| 1.15 g/cm³ | at 25 °C | CAMEO | |
| Solubility | Slightly sol in cold water. Very sol in alcohol, benzene, ether | HSDB | |
| Solubility (g/100mL solvent at 25 °C): 273.0 in acetone; 9.0 in benzene; 0.7 in carbon tetrachloride; 9.5 in ethyl ether; 143.0 in methanol; 0.1 in water | at 25 °C | HSDB | |
| In water, 1.00X10+3 mg/L at 25 °C | at 25 °C | HSDB | |
| Vapor pressure | 2.03e-7 mmHg | at 25 °C | HSDB |
| 2e-7 mmHg | at 25 °C | NIOSH | |
| 1e-7 mmHg | at 25 °C, calculated | CAMEO | |
| Flash point | 220 °C (428 °F) | closed cup | HSDB |
| 190 °C (374 °F) | NIOSH | ||
| 221.11 °C (430 °F) | CAMEO | ||
| Lower explosive limit (LEL) | Combustible Solid | NIOSH | |
| Vapor density | 6.8 (air = 1) | HSDB |
Values compiled from PubChem Laboratory Chemical Safety Summary. Temperatures converted to Fahrenheit for reference.
04 · Handling and storage
Storing and handling 4,4-Diaminodiphenylmethane
Storage conditions
MATERIALS WHICH ARE TOXIC AS STORED OR WHICH CAN DECOMPOSE INTO TOXIC COMPONENTS...SHOULD BE STORED IN A COOL WELL VENTILATED PLACE, OUT OF THE DIRECT RAYS OF THE SUN, AWAY FROM AREAS OF HIGH FIRE HAZARD, & SHOULD BE PERIODICALLY INSPECTED. INCOMPATIBLE MATERIALS SHOULD BE ISOLATED...
Source: Hazardous Substances Data Bank (HSDB)
Incompatible materials
Strong oxidizers.
Source: Hazardous Substances Data Bank (HSDB)
Reactivity
4,4'-DIAMINODIPHENYLMETHANE polymerizes if heated above 257 °F. Incompatible with strong oxidizing agents. It is also incompatible with acids. Catalyzes isocyanate-alcohol and epoxide reactions. Flammable gaseous hydrogen may be generated in combination with strong reducing agents, such as hydrides.
Source: CAMEO Chemicals
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