Ammonium carbamate
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| Chemical formula | NH4CO2NH2 |
|---|---|
| OTP appearance | white crystals |
| Molar Mass(g/mol) | 78.071 |
| Density(g/cc) | 1.38 |
| Melting Point(°C) | 60 |
| Solubility in water(g/L) | miscible |
| NFPA 704 |  0
2
0
|
Uses
Justification Questioned
Other
- Precursor for urea
Natural occurrence
Hazards
Character
Production
Extraction
- Extracted from spirit of hartshorn, which also contains ammonium carbonate and ammonium bicarbonate
Synthesis
- Combine liquid ammonia and dry ice
- Combine the two gases at high temperature (450–500 K) and high pressure (150–250 bar)
- Bubble the the two gases through ethanol at 0° and atmospheric pressure. The carbamate precipitates and can be separated by simple filtration.