Solid phase
Official name
Ammonium carbamate
Secondary names
carbamic acid ammonium salt; carbamic acid monoammonium salt; ammonium salt of carbamic acid; ammoniumcarbamate; ammonium amidocarbonate; azanium amidodioxidocarbonate; ammonium aminoformate; NH4CO2NH2; NH4NH2CO2; NH4+ NH2CO2-; NH4NH2COO; NH4+ NH2COO-; NH2CO2NH4; NH2CO2- NH4+; NH2COONH4; NH2COO- NH4+; H2NCO2NH4; H2NCO2- NH4+; CH6N2O2
CAS number
1111-78-0
Type
Family
ionic solid
Class
alkali salt
Compound type
organic salt
Chemical composition
Formula
$NH_4^+ \cdot NH_2COO^-$
Chemical formula
NH4CO2NH2
Elemental formula
(N+) H6 C N O (O-)
Isotope mixture type
terrestrial abundance
4.0
  Formula Name Family Number min-max Mole fraction Isotope mole fraction State Relevance
$NH_4^+$ Ammonium ion molecule 1 0.5 1 constituent cation main
$NH_2COO^-$ Carbamate ion molecule 1 0.5 1 constituent anion main
Chemical functions
  Function Number
$H_4 >\mid N^+$ 1
$R-C(=O)-O^-$ 1
Chemical bonds
  Bond Number
$>\mid N^+ \cdot O^{-}-$ 1
$\geq N^+-H$ 4
$>N-H$ 2
$\eqslantgtr C-N<$ 1
$>C=O$ 1
$\eqslantgtr C-O^-$ 1
Class
normal salts (07)
Type
simple normal salts (07.01)
Phase type
crystalline
Crystal system
orthorhombic
Molar mass
78.071 $g/mol$
Density
1.38 $g/cm^3$
State NTP
solid
Phase transitions
Phase transition type Other phases Temperature - Pressure
solid-liquid liquid decomposition 60 °C (333 K)
Refringence type
biaxial
Pure color
colorless
Color
colorless, white
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