Solid phase
Official name
Ammonium nitrate (phase V)
Secondary names
Nitrate of ammonia; Nitric acid ammonium salt (1:1); Nitric acid ammonium salt; azanium;nitrate; V-NH4NO3; (NH4+)NO3-; H4N2O3
CAS number
6484-52-2
Type
Family
ionic solid
Class
normal salt
Compound type
nitrate
Chemical composition
Formula
$NH_4^+ \cdot NO_3^-$
Chemical formula
(NH4)NO3
Elemental formula
(N+)2 H4 O (O-)2
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
$(NO_3)^-$ Nitrate anion chemical function 1 0.5 1 constituent anion main
Chemical functions
  Function Number
$H_4 >\mid N^+$ 1
$(NO_3)^-$ 1
Chemical bonds
  Bond Number
$>\mid N^+ \cdot O^{-}-$ 1
$\geq N^+-H$ 4
$\dddot - \dddot - N^+ \dddot - O^{-2/3}$ 3
Class
normal salts (07)
Type
simple normal salts (07.01)
Group
nitrate (07.01.06)
Phase name
Ammonium nitrate-V [or V-(NH4)NO3]
Phase type
crystalline
Crystal system
tetragonal
Crystal class
pyramidal
Crystal class symbol
4 (C4)
Crystal spacegroup
P4(2)
Molar mass
80.043 $g/mol$
Density
1.745 $g/cm^3$
State NTP
solid
Phase transitions
Phase transition type Other phases Temperature - Pressure
solid-solid IV-NH4NO3 below -17°C (256.2K)
Refringence type
uniaxial
Pure color
colorless
Color
colorless, white
Diaphaneity
transparent to translucent
Links