Substance profile
2,4-Dinitroaniline
2,4-Dinitroaniline is yellow needles from dil acetone, greenish-yellow plates from alcohol with a musty odor.
01 · Identification
What 2,4-Dinitroaniline is
2,4-Dinitroaniline is yellow needles from dil acetone, greenish-yellow plates from alcohol with a musty odor. Its molecular formula is C6H5N3O4 and its molecular weight is 183.12 g/mol. It boils at 56.7 °C, melts at 188 °C.
Under the GHS it carries the signal word Danger.
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 |
|---|---|
| H310 | Fatal in contact with skin. |
| H330 | Fatal if inhaled. |
| H300 | Fatal if swallowed. |
| 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>. |
| H411 | Toxic to aquatic life with long lasting effects. |
Precautionary statements: P260, P270, P271, P273, P280, P301, P302, P304, P310, P314, P330, P352, P391, P501
03 · Physical and chemical properties
2,4-Dinitroaniline 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 | 56.7 °C (134.1 °F) | HSDB | |
| Melting point | 188 °C (370.4 °F) | DOE PAC | |
| 187.75 °C (370 °F) | range, midpoint shown | HSDB | |
| 176.94 °C (350.5 °F) | range, midpoint shown | CAMEO | |
| Density | 1.62 g/cm³ | ICSC | |
| 1.615 g/cm³ | at 25 °C | DOE PAC | |
| 1.615 g/cm³ | at 15 °C | CAMEO | |
| Solubility | SOL IN HOT HYDROCHLORIC ACID | HSDB | |
| less than 0.1 mg/mL at 73 °F (NTP, 1992) | at 22.78 °C | CAMEO | |
| Vapor pressure | 5.94e-7 mmHg | at 25 °C | DOE PAC |
| 0.0000268 mmHg | Haz-Map | ||
| Flash point | 223.89 °C (435 °F) | HSDB | |
| 223 °C (433.4 °F) | range, midpoint shown | ICSC | |
| Vapor density | 6.31 (air = 1) | HSDB |
Values compiled from PubChem Laboratory Chemical Safety Summary. Temperatures converted to Fahrenheit for reference.
04 · Source notes
Further notes on 2,4-Dinitroaniline
These are descriptions rather than measured values, so they are kept out of the table above and quoted here with the source that reported them.
Solubility
PRACTICALLY INSOL IN COLD WATER; VERY SPARINGLY SOL IN BOILING WATER; 5.8 PARTS SOL IN 100 PARTS 88% ALCOHOL @ 18 °C; 1 PART SOL IN 132.6 PARTS OF 95% ALCOHOL @ 21 °C
Source: HSDB
05 · Handling and storage
Storing and handling 2,4-Dinitroaniline
Storage conditions
Store in a cool, dry, well ventilated location. Separate from acids and oxidizing materials. Detached storage must be used.
Source: Hazardous Substances Data Bank (HSDB)
Incompatible materials
DISASTER HAZARD: ... IT CAN REACT WITH OXIDIZING MATERIALS.
Source: Hazardous Substances Data Bank (HSDB)
Reactivity
2,4-DINITROANILINE may decompose violently at elevated temperatures. This compound can react with oxidizing materials, i.e. chlorine/hydrochloric acid. (NTP, 1992). In mixture with powdered charcoal ignited upon heating, [Cahiers, 1980, (99), 278].
Source: CAMEO Chemicals
Planning storage for a mix of chemicals? Check 2,4-Dinitroaniline in the storage compatibility matrix →