Constituent
Name
Ammonium hydrogen sulphate (Phase II)
Official name
Ammonium hydrogen sulfate (phase II)
Family
ionic solid
Class
acid salt
Compound type
sulfate
Constituent abundance in material
Relevance
main - major
Arrangement
single phase
Mass
1.165 $\pm$ 0.005 $g$
Mass fraction
1.0
Mole fraction
1.0
Chemical composition
Formula
$(NH_4^+) \cdot HSO_4^-$
Chemical formula
(NH4)HSO4
Elemental formula
(N+) H5 S O3 (O-)
Isotope mixture type
terrestrial abundance
  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
$HSO_4^-$ Hydrogen sulfate ion molecule 1 0.5 1 constituent anion main
Chemical functions
  Function Number
$H_4 >\mid N^+$ 1
Chemical bonds
  Bond Number Relevance
$>\mid N^+ \cdot O^{-}-$ 1
$\geq N^+-H$ 4 main
$-\gg S-O^{-}$ 1 main
$\geqq S=O$ 2 main
$-\gg S-O-$ 1 main
$-O-H$ 1 main
Class
acid salts (05)
Type
simple acid salts (05.01)
Phase name
Ammonium hydrogen sulfate-II
Phase type
crystalline
Crystal system
monoclinic
Crystal class
domatic
Crystal class symbol
m (Cs)
Crystal spacegroup
Pc
Comments
ferroelectric phase
Texture
monocrystalline
Molar mass
115.109 $g/mol$
Refringence type
biaxial
Color
colorless, white
Diaphaneity
transparent to translucent