Ammonium sulfate

Ammonium sulfate
Names
	IUPAC name Ammonium sulfate
	Other names Ammonium sulphate; Ammonium sulfate (2:1); Diammonium sulfate; Sulfuric acid diammonium salt; Mascagnite; Actamaster; Dolamin;
Identifiers
CAS Number	7783-20-2 ;
3D model (JSmol)	Interactive image;
ChEBI	CHEBI:62946;
ChemSpider	22944 ;
ECHA InfoCard	100.029.076
EC Number	231-984-1;
E number	E517 (acidity regulators, ...)
KEGG	D08853 ;
PubChem CID	6097028;
UNII	SU46BAM238 ;
CompTox Dashboard (EPA)	DTXSID1029704 ;
	InChI InChI=1S/2H3N.H2O4S/c;;1-5(2,3)4/h21H3;(H2,1,2,3,4) Key: BFNBIHQBYMNNAN-UHFFFAOYSA-N ; InChI=1/2H3N.H2O4S/c;;1-5(2,3)4/h21H3;(H2,1,2,3,4) Key: BFNBIHQBYMNNAN-UHFFFAOYAI;
	SMILES O=S(=O)(O)O.N.N;
Properties
Chemical formula	(NH4)2SO4
Molar mass	132.14 g/mol
Appearance	Fine white hygroscopic granules or crystals
Density	1.77 g/cm3
Melting point	235 to 280 °C (455 to 536 °F; 508 to 553 K) (decomposes)
Solubility in water	70.6 g per 100 g water (0 °C); 74.4 g per 100 g water (20 °C) ; 103.8 g per 100 g water (100 °C)
Solubility	Insoluble in acetone, alcohol and ether
Magnetic susceptibility (χ)	−67.0×10−6 cm3/mol
Critical relative humidity	79.2% (30 °C)
Structure
Crystal structure	orthorhombic
Hazards
	GHS labelling:
Pictograms
Signal word	Warning
Hazard statements	H315, H319, H335
Precautionary statements	P261, P264, P270, P271, P273, P280, P301+P312, P302+P352, P304+P340, P305+P351+P338, P312, P321, P330, P332+P313, P337+P313, P362, P391, P403+P233, P405, P501
NFPA 704 (fire diamond)	2 1 0
Flash point	Non-flammable
	Lethal dose or concentration (LD, LC):
LD50 (median dose)	2840 mg/kg, rat (oral)
Related compounds
Other anions	Ammonium thiosulfate; Ammonium sulfite; Ammonium bisulfate; Ammonium persulfate
Other cations	Sodium sulfate; Potassium sulfate
Related compounds	Ammonium iron(II) sulfate
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). verify (what is ?) Infobox references

Ammonium sulfate (American English and international scientific usage; ammonium sulphate in British English); (NH₄)₂SO₄, is an inorganic salt with a number of commercial uses. The most common use is as a soil fertilizer. It contains 21% nitrogen and 24% sulfur.

Names


IUPAC name Ammonium sulfate
Other names Ammonium sulphate Ammonium sulfate (2:1) Diammonium sulfate Sulfuric acid diammonium salt Mascagnite Actamaster Dolamin
Identifiers
CAS Number	7783-20-2^Y
3D model (JSmol)	Interactive image
ChEBI	CHEBI:62946
ChemSpider	22944^Y
ECHA InfoCard	100.029.076
EC Number	231-984-1
E number	E517 (acidity regulators, ...)
KEGG	D08853^Y
PubChem CID	6097028
UNII	SU46BAM238^Y
CompTox Dashboard (EPA)	DTXSID1029704
InChI InChI=1S/2H3N.H2O4S/c;;1-5(2,3)4/h21H3;(H2,1,2,3,4)^Y Key: BFNBIHQBYMNNAN-UHFFFAOYSA-N^Y InChI=1/2H3N.H2O4S/c;;1-5(2,3)4/h21H3;(H2,1,2,3,4) Key: BFNBIHQBYMNNAN-UHFFFAOYAI
SMILES O=S(=O)(O)O.N.N
Properties
Chemical formula	(NH₄)₂SO₄
Molar mass	132.14 g/mol
Appearance	Fine white hygroscopic granules or crystals
Density	1.77 g/cm³
Melting point	235 to 280 °C (455 to 536 °F; 508 to 553 K) (decomposes)
Solubility in water	70.6 g per 100 g water (0 °C) 74.4 g per 100 g water (20 °C) 103.8 g per 100 g water (100 °C)
Solubility	Insoluble in acetone, alcohol and ether
Magnetic susceptibility (χ)	−67.0×10⁻⁶ cm³/mol
Critical relative humidity	79.2% (30 °C)
Structure
Crystal structure	orthorhombic
Hazards
GHS labelling:
Pictograms
Signal word	Warning
Hazard statements	H315, H319, H335
Precautionary statements	P261, P264, P270, P271, P273, P280, P301+P312, P302+P352, P304+P340, P305+P351+P338, P312, P321, P330, P332+P313, P337+P313, P362, P391, P403+P233, P405, P501
NFPA 704 (fire diamond)	2 1 0
Flash point	Non-flammable
Lethal dose or concentration (LD, LC):
LD₅₀ (median dose)	2840 mg/kg, rat (oral)
Related compounds
Other anions	Ammonium thiosulfate Ammonium sulfite Ammonium bisulfate Ammonium persulfate
Other cations	Sodium sulfate Potassium sulfate
Related compounds	Ammonium iron(II) sulfate
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