Hydroxylammonium sulfate

Hydroxylammonium sulfate

Names
Other names Hydroxylamine sulfate
Identifiers
CAS Number	10039-54-0 Y
3D model (JSmol)	Interactive image
ChEMBL	ChEMBL3183215
ChemSpider	23229 Y
ECHA InfoCard	100.030.095
EC Number	233-118-8
PubChem CID	24846
RTECS number	NC5425000
UNII	49KP498D4O Y
UN number	2865
CompTox Dashboard (EPA)	DTXSID2025424
InChI InChI=1S/2H4NO.H2O4S/c2*1-2;1-5(2,3)4/h2*2H,1H3;(H2,1,2,3,4)/q2*+1;/p-2 Y Key: VGYYSIDKAKXZEE-UHFFFAOYSA-L Y InChI=1/2H4NO.H2O4S/c2*1-2;1-5(2,3)4/h2*2H,1H3;(H2,1,2,3,4)/q2*+1;/p-2 Key: VGYYSIDKAKXZEE-NUQVWONBAN
SMILES [O-]S([O-])(=O)=O.O[NH3+].O[NH3+]
Properties
Chemical formula	H8N2O6S
Molar mass	164.14 g/mol
Appearance	white crystalline to fine product, slightly hygroscopic
Density	1.88 g/cm3
Melting point	120 °C (248 °F; 393 K) decomposes
Solubility in water	58.7 g/100 ml (20 °C)
Structure[1]
Crystal structure	Monoclinic
Space group	P21/c
Lattice constant	a = 7.932±0.002 Å, b = 7.321±0.002 Å, c = 10.403±0.003 Å α = 90°, β = 106.93±0.03°, γ = 90°
Formula units (Z)	4
Hazards
GHS labelling:
Pictograms
Signal word	Warning
Hazard statements	H290, H302, H312, H315, H317, H319, H351, H373, H400, H412
Precautionary statements	P201, P202, P234, P260, P261, P264, P270, P272, P273, P280, P281, P301+P312, P302+P352, P305+P351+P338, P308+P313, P312, P314, P321, P322, P330, P332+P313, P333+P313, P337+P313, P362, P363, P390, P391, P404, P405, P501
NFPA 704 (fire diamond)	3 1 2
Safety data sheet (SDS)	External MSDS
Related compounds
Other anions	Hydroxylammonium nitrate Hydroxylammonium chloride
Other cations	Ammonium sulfate Hydrazinium sulfate
Related compounds	Hydroxylamine
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Y verify (what is YN ?) Infobox references

Hydroxylammonium sulfate [NH₃OH]₂SO₄, is the sulfuric acid salt of hydroxylamine. It is primarily used as an easily handled form of hydroxylamine, which is explosive when pure.