Ammonium carbamate

Ammonium carbamate
Names
	IUPAC name Ammonium carbamate
	Other names hartshorn, sal volatile, ammonium amidocarbonate, ammonium aminoformate,
Identifiers
CAS Number	1111-78-0 ;
3D model (JSmol)	Interactive image;
ChemSpider	451267;
ECHA InfoCard	100.012.896
EC Number	214-185-2;
Gmelin Reference	14637 (G)
PubChem CID	517232;
RTECS number	EY8575000;
UNII	I2W9615SWP ;
UN number	9083
CompTox Dashboard (EPA)	DTXSID9027360 ;
	InChI InChI=1S/CH3NO2.H3N/c2-1(3)4;/h2H2,(H,3,4);1H3;
	SMILES [O-]C(=O)N.[NH4+];
Properties
Chemical formula	[NH4]NH2CO2
Molar mass	78.071 g·mol−1
Appearance	Colorless, rhombic crystals
Density	1.38 g/cm3 (20 °C)
Melting point	60 °C (140 °F; 333 K) decomposes
Solubility in water	Freely soluble in water
Solubility	Soluble in ethanol, methanol, liquid ammonia, formamide
log P	−0.47 in octanol/water
Vapor pressure	492 mmHg(51 °C)
Thermochemistry
Std enthalpy of; formation (ΔfH⦵298)	-642.5 kJ/mol
Hazards
	Occupational safety and health (OHS/OSH):
Main hazards	Harmful if ingested, harmful to aquatic life, harmful if inhaled, respiatory tract irritation, skin irritation, eye irritation
	GHS labelling:
Pictograms
Signal word	Warning
NFPA 704 (fire diamond)	1 0 0
Flash point	105.6 °C (222.1 °F; 378.8 K)
	Lethal dose or concentration (LD, LC):
LD50 (median dose)	1,470 mg/kg in a rat
Safety data sheet (SDS)	External MSDS
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Ammonium carbamate is a chemical compound with the formula [NH₄][H₂NCO₂] consisting of ammonium cation NH+4 and carbamate anion NH₂COO⁻. It is a white solid that is extremely soluble in water, less so in alcohol. Ammonium carbamate can be formed by the reaction of ammonia NH₃ with carbon dioxide CO₂, and will slowly decompose to those gases at ordinary temperatures and pressures. It is an intermediate in the industrial synthesis of urea (NH₂)₂CO, an important fertilizer.

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