Ammonium carbamate: Difference between revisions
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JeffEvarts (talk | contribs) (Created page with "{{Compound|chemf=NH4CO2NH2 |mm=78.071|density=1.38|mp=60|bp=|sol_aq=miscible |stp_p=crystals|stp_q=white |nfpa_h=2 }} ==Uses== {{Justify}} ===Other=== * Precursor for urea...") |
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===Synthesis=== | ===Synthesis=== | ||
# Combine liquid [[ammonia]] and [[carbon dioxide|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. | |||
==Testing== | ==Testing== | ||
==Purification== | ==Purification== | ||
Revision as of 18:22, 13 March 2021
| 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.