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.

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