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901874 Sigma-Aldrich

Ammonium sulfate

anhydrous, Redi-Dri, ReagentPlus®, ≥99.0%

Synonym: Mascagnite

  • CAS Number 7783-20-2

  • Linear Formula (NH4)2SO4

  • Molecular Weight 132.14

  •  MDL number MFCD00003391

  •  NACRES NA.21

Purchase

Properties

grade   anhydrous
product line   ReagentPlus®
  Redi-Dri
assay   ≥99.0%
form   powder
pH   5-6 (25 °C, 132 g/L)
mp   >280 °C (dec.) (lit.)
solubility   water: soluble 132 g/L at 20 °C
density   1.77 g/mL at 25 °C (lit.)
cation traces   Fe: ≤ 10 ppm
  Pb: ≤ 3 ppm
  Se: ≤ 5 ppm
storage temp.   room temp
SMILES string   N.N.OS(O)(=O)=O
InChI   1S/2H3N.H2O4S/c;;1-5(2,3)4/h2*1H3;(H2,1,2,3,4)
InChI key   BFNBIHQBYMNNAN-UHFFFAOYSA-N

Description

General description

Ammonium sulfate is an ammonium salt commonly used as fertilizer. It can be synthesized by neutralizing sulfuric acid with ammonia. It is reported to enhance the phytotoxicity of several herbicides like glyphosates. It is formed as a co-product during the manufacture of caprolactam, a precursor of nylon.

Application

Ammonium sulfate may be used in methyl cellulose precipitable tannin assay to examine wine tannin in finished wine samples. It may also be used in making externally mixed aerosols for analyzing the 1 × 3 tandem differential mobility analyzer (1 × 3-TDMA), which is mainly employed for determining the irreversibility of the hygroscopic growth factor of aerosol particles.

Legal Information

ReagentPlus is a registered trademark of Sigma-Aldrich Co. LLC

Redi-Dri is a trademark of Sigma-Aldrich Co. LLC

Safety & Documentation

Safety Information

RIDADR 
NONH for all modes of transport
WGK Germany 
WGK 1
RTECS 
BS4500000
Flash Point(F) 
Not applicable
Flash Point(C) 
Not applicable

Documents

Certificate of Analysis (COA)

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Certificate of Origin (COO)

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Protocols & Articles

Articles

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Peer-Reviewed Papers
15

References

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