Substance profile
C,C'-azodi(formamide)
C,C'-azodi(formamide) is orange-red crystals.
01 · Identification
What C,C'-azodi(formamide) is
C,C'-azodi(formamide) is orange-red crystals. Its molecular formula is C2H4N4O2 and its molecular weight is 116.08 g/mol. It melts at 225 °C, is soluble in water.
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 |
|---|---|
| H334 | May cause allergy or asthma symptoms or breathing difficulties if inhaled. |
Precautionary statements: P201, P261, P284, P304, P340, P342, P311
03 · Physical and chemical properties
C,C'-azodi(formamide) 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 | Decomposes (NTP, 1992) | decomposes | CAMEO |
| Melting point | 225 °C (437 °F) | DOE PAC | |
| 225 °C (437 °F) | decomposes, decomposes | HSDB | |
| 225 °C (437 °F) | decomposes | CAMEO | |
| Density | 1.65 g/cm³ | ICSC | |
| 1.65 g/cm³ | at 20 °C | HSDB | |
| Solubility | SLIGHTLY SOL IN ETHER; INSOL IN ORGANIC SOLVENTS | HSDB | |
| Soluble in dimethyl sulfoxide; insoluble in common solvents | HSDB | ||
| Very slightly soluble in hot water; insoluble in alcohol | HSDB | ||
| Vapor pressure | 1.88e-10 mmHg | at 20 °C | HSDB |
| 7.1 mmHg | at 19 °C | CAMEO | |
| 2.4e-8 mmHg | at 50 °C | HSDB | |
| Flash point | 96.11 °C (205 °F) | CAMEO |
Values compiled from PubChem Laboratory Chemical Safety Summary. Temperatures converted to Fahrenheit for reference.
04 · Handling and storage
Storing and handling C,C'-azodi(formamide)
Reactivity
AZODICARBONAMIDE is easily ignited and burns rapidly. Confined samples show a high rate of pressure rise during thermal decomposition, which produces carbon monoxide and nitrogen. Sensitive to temperatures exceeding 122 °F. May be sensitive to exposure to light. Stable in bulk when stored for two weeks at temperatures up to 140 °F. Slightly unstable in water suspension (showed 1.3% decomposition at 2 mg/mL over a two-week period at room temperature in the light but no decomposition at 41 °F over a two-week period in the dark (NTP, 1992). Reacts with hot water to give nitrogen, carbon monoxide, and ammonia [Hawley]. Decomposes in hot hydrochloric acid. Incompatible with strong acids and bases, and with compounds of metals.
Source: CAMEO Chemicals
Planning storage for a mix of chemicals? Check C,C'-azodi(formamide) in the storage compatibility matrix →