Molecule
- Name
- Ammonium ion
- IUPAC name
- Ammonium
- Secondary names
- Ammonium cation, Ammonium(1+), azanium, NH4+
- InChI
- InChI=1S/H3N/h1H3/p+1
- InChI key
- QGZKDVFQNNGYKY-UHFFFAOYSA-O
- CAS number
- 14798-03-9
- Formula
- Chemical formula
- NH4+
- Structural formula
- [NH4+]
- Charge
- 1

- Isotope mixture type
- terrestrial abundance
- Spin type
- equilibrated
- Molar mass
- 18.039
- Protic
- protic
- Polarity
- ionic
- Molecule symmetry
- Td
- Case
- spherical-top
- Vibrations number
- 4
- Vibrations
- Comments
- from NIST WebBook