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Ammonium Sulfate

Properties, data and information sources.

 

Contents

Ammonium sulfate is an inorganic chemical compound from the sulfate group; it is the di-ammonium salt of sulfuric acid.

 

Names and Identifiers

Name
Ammonium Sulfate
Formula
H8N2O4S
(NH4)2SO4
Molar mass
132.134 (g/mol)
CAS registry number
7783-20-2
EC number EINECS
231-984-1
InChI Key
BFNBIHQBYMNNAN-UHFFFAOYSA-N

Systematic name
Diazanium sulfate

Other names, synonyms
Ammonium sulphate; Diammonium sulfate; Actamaster; Dolamin; Mascagnite

INCI name
AMMONIUM SULFATE

 

Chemical formulas

Molecular formula and structural formula of Ammonium Sulfate:

 

H8N2O4S or (NH4)2SO4

Mr = 132.134 g/mol

Diazanium sulfate
SMILES: [NH4+].[NH4+].[O-]S(=O)(=O)[O-]

 

Data and Properties

Pure ammonium sulfate exists as an odorless and colorless, crystalline, somewhat hygroscopic solid.

solubility:
+ Soluble in water (706 g/L at 0 °C; 754 g/L at 20 °C; 1038 g/L at 100 °C).
- Practically insoluble in acetone, alcohol, ether.
decomposition temperature
235 °C
density
1.77 g cm-3 at 20 °C
standard enthalpy of formation
-1180 kJ/mol at 25 °C
magnetic susceptibility χ
-67.0 × 10-6 cm3 mol-1
crystal structure:
Orthorhombic crystal system with a = 772.9 pm, b = 1056.0 pm, c = 595.1 pm.

 

Spectroscopic data:

SpectraBase (NMR, IR, FTIR, Raman, UV-Vis, MS ... spectra)
2T29anCgDVG

 

Percentage and isotopic composition:

Mass-related elemental composition and isotope proportions of the compound Ammonium Sulfate - H8N2O4S - calculated based on molecular mass.

Symbol
Element ENumber x
of atoms ExData of the element
and isotopes *Percentages
of isotopesPercentage of
Ex in formula massH
Hydrogen8 Ar = 1.008 u
ΣAr = 8.064 u
3H: 3.01605 u [<< 1 %]
1H: 1.00783 u [99,99 %]
2H: 2.0141 u [0,01 %] 
3H: trace
1H: 6.10229 %
2H: 0.00061 %
6.1029 %N
Nitrogen2 Ar = 14.007 u
ΣAr = 28.014 u
14N: 14.00307 u [99,6205 %]
15N: 15.00011 u [0,3795 %] 
14N: 21.12075 %
15N: 0.08046 %
21.2012 %O
Oxygen4 Ar = 15.999 u
ΣAr = 63.996 u
16O: 15.99491 u [99,757 %]
17O: 16.99913 u [0,03835 %]
18O: 17.99916 u [0,205 %] 
16O: 48.31496 %
17O: 0.01857 %
18O: 0.09929 %
48.4327 %S
Sulfur1ΣAr = 32.06 u
32S: 31.97207 u [94,954 %]
34S: 33.96787 u [4,365 %]
35S: 34.96903 u [<< 1 %]
36S: 35.96708 u [0,016 %]
33S: 32.97146 u [0,763 %] 
32S: 23.03892 %
34S: 1.05909 %
35S: trace
36S: 0.00388 %
33S: 0.18513 %
24.2632 %

*) The third column lists the atomic masses or isotope masses of the elements involved and - in square brackets - the natural isotope composition.

 

More calculated data

The molar mass is M = 132.134 grams per mole.

The amount of substance in one kilogram of the substance is n = 7.568 mol.

The amount of substance in one gram of the substance is n = 0.008 mol.

Monoisotopic mass: 132.0204779156 Da - related to 1H814N216O432S.

 

Use in food

E-Nummer: E517

Food additive with the E number E 517: carrier substance for other additives.

EU: Status and regulations see EU Food Additives DB Ref. Number 3214.

 

Use in Cosmetics

INCI Name: AMMONIUM SULFATE

Ammonium sulfate is an ingredient in cosmetic products, functioning as a viscosity-regulating component.

Source: CosIng (Cosmetic Ingredient Database) number: 31899.

 

Hazard warnings according to GHS

(General information without guarantee of accuracy and completeness! The information does not replace the chemical safety data sheet or a risk assessment, but rather provides a general overview of the risk posed by the hazardous substance.

Signal word: Warning

GHS hazard statements (H phrases):


H302
Harmful if swallowed

H315
Causes skin irritation

H319
Causes serious eye irritation

H335
May cause respiratory irritation

LD50 (rat, oral): 2840 mg/kg.

Labeling in the EU: See ECHA Substance Infocard 100.029.076.

For toxicology and occupational safety when handling Ammonium Sulfate as well as measures to be taken in case of danger, see: Hazardous Substances Information System GESTIS, ZVG-Nr. 001470.

Note: The labeling requirement according to the CLP Regulation (EU) does not apply, among other things, to certain substances and mixtures for end users that are in the form of finished products, such as pharmaceuticals, veterinary drugs, cosmetics, certain medical products and medical devices, food or feed, as well as certain Food additives or flavorings. Special legal regulations may need to be adhered to here.

 

External Sources

PubChem:ID 6097028ChemSpider:ID 22944Kegg database DBGET:ID D08853UNII of the FDA (USA):Unique Ingredient Identifier SU46BAM238EPA CompTox Chemicals Dashboard:DTXSID1029704NCI Thesaurus:C76740 (active ingredient description)Other CAS RN:44071-93-4; 64006-53-7; 82168-61-4; 122364-22-1; 122393-13-9; 428816-32-4; 57973-73-6 (also used, outdated or deleted registration numbers)

 

Manufacturers and Sources of Supply

The table below lists producers and suppliers of Ammonium Sulfate as a commercial chemical for laboratories, research, industry and production with the corresponding contact details.

 

Literature Sources

[0] - Specialist and research articles in scientific journals via PubMed: Ammonium_Sulfate.

 

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Last update: 2025-12-30

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