Ammonium sulfate
Catalog Number
ACM7783202
CAS
7783-20-2
IUPAC Name
Diazanium;sulfate
Synonyms
Diammonium sulfate
Application
Ammonium sulfate, represented by the formula \((NH_4)_2SO_4\), is a versatile compound primarily purposed as a nitrogenous fertilizer, holding approximately 21% nitrogen and 24% sulfur. Its stability and low hygroscopicity make it a preferred choice for agricultural applications, particularly in soils with neutral to alkaline pH, where it effectively counters high calcium levels and soil alkalinity. As a slow-releasing fertilizer, ammonium sulfate provides a steady supply of nitrogen throughout the growing season, making it highly effective for crops such as wheat, corn, rice, and potatoes. Besides its role in agriculture, ammonium sulfate is utilized in the manufacture of various chemicals, flameproofing materials, and as a component in microbiological culture media. Commercial production has evolved from traditional ammonia and sulfuric acid reactions to utilizing by-products from industrial activities like steel production and sulfuric acid desulfurization. While advantageous for its agronomic effectiveness and application on suitable soils, ammonium sulfate's use requires careful consideration due to its potential soil acidification effects and relatively lower nitrogen content compared to alternative fertilizers.
Molecular Weight
132.14
Molecular Formula
(NH4)2SO4;(NH4)2SO4;H8N2O4S
Product Information
Description
Ammonium sulfate is a white odorless solid. Sinks and dissolves in water. (USCG, 1999);DryPowder; DryPowder, PelletsLargeCrystals; DryPowder, PelletsLargeCrystals, Liquid; Liquid; OtherSolid; PelletsLargeCrystals; PelletsLargeCrystals, Liquid; WetSolid;White powder, shining plates or crystalline fragments
Canonical SMILES
[NH4+].[NH4+].[O-]S(=O)(=O)[O-]
InChI
InChI=1S/2H3N.H₂O4S/c;1-5(2,3)4/h2*1H3;(H2,1,2,3,4)
InChI Key
BFNBIHQBYMNNAN-UHFFFAOYSA-N
Melting Point
>280 °C
Flash Point
26°C
Purity
99%+
Density
1.77 g/mL at 25 °C (lit.)
Solubility
Freely soluble in water, insoluble in ethanol
Appearance
Yellow to orange solid
Storage
Room Temperature
Complexity
62.2
Covalently-Bonded Unit Count
3
Exact Mass
132.02047791
Hazard Statements
Xi,Xn
Heavy Atom Count
7
Monoisotopic Mass
132.02047791
Odor
Slight odor of ammonia
Refractive Index
Index of refraction: 1.521, 1.523, 1.533
Rotatable Bond Count
0
Topological Polar Surface Area
90.6 Ų
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