Ammonium sulfamate

Ammonium sulfamate (or ammonium sulphamate) is a white crystalline solid, readily soluble in water. It is commonly used as a broad spectrum herbicide, with additional uses as a compost accelerator, flame retardant and in industrial processes.

Ammonium sulfamate
Names
IUPAC name
Ammonium sulfamate
Other names
Ammonium sulphamate
Ammate herbicide
Ammonium amidosulfonate
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.028.974
KEGG
PubChem CID
RTECS number
  • WO6125000
UNII
  • InChI=1S/H3NO3S.H3N/c1-5(2,3)4;/h(H3,1,2,3,4);1H3 Y
    Key: GEHMBYLTCISYNY-UHFFFAOYSA-N Y
  • InChI=1/H3NO3S.H3N/c1-5(2,3)4;/h(H3,1,2,3,4);1H3
    Key: GEHMBYLTCISYNY-UHFFFAOYAI
SMILES
  • [O-]S(=O)(=O)N.[NH4+]
Properties
[NH4]SO3NH2
Molar mass 114.125 g/mol
Appearance White solid
hygroscopic
Density 1.8 g/cm3
Melting point 131 °C (268 °F; 404 K)
Boiling point 160 °C (320 °F; 433 K) (decomposes)
very soluble
Solubility soluble in glycerol, glycol, formamide
slightly soluble in ethanol
insoluble in methanol, ether, n-octanol
Acidity (pKa) 6
Hazards
Occupational safety and health (OHS/OSH):
Main hazards
Irritant
NFPA 704 (fire diamond)
2
0
0
Flash point Non-flammable
Lethal dose or concentration (LD, LC):
LD50 (median dose)
2000 mg/kg (oral, rat)
3100 mg/kg (oral, mouse)
3900 mg/kg (oral, rat)
5760 mg/kg (oral, mouse)
NIOSH (US health exposure limits):
PEL (Permissible)
TWA 15 mg/m3 (total) TWA 5 mg/m3 (resp)
REL (Recommended)
TWA 10 mg/m3 (total) TWA 5 mg/m3 (resp)
IDLH (Immediate danger)
1500 mg/m3
Safety data sheet (SDS) ICSC 1555
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references
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