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A5132

Ammonium sulfate

ReagentPlus®, ≥99.0%

Synonym(s):

Mascagnite

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About This Item

Linear Formula:
(NH4)2SO4
CAS Number:
7783-20-2
Molecular Weight:
132.14
PubChem Substance ID:
329770869
eCl@ss:
38030408
UNSPSC Code:
12352300
NACRES:
NA.21
EC Number:
231-984-1
MDL number:
MFCD00003391
Assay:
≥99.0%
Form:
powder or crystals
Solubility:
water: soluble 132 g/L at 20 °C
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Quality Level

200

product line

ReagentPlus®

assay

≥99.0%

form

powder or crystals

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

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

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 Merck KGaA, Darmstadt, Germany

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flash_point_f

Not applicable

flash_point_c

Not applicable

Storage Class

11 - Combustible Solids

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

7783-20-2

CAS No.

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Certificates of Analysis (COA)

Lot/Batch Number
0000551462
0000551463
0000551469
0000530627
0000530627

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The 1-by-3 tandem differential mobility analyzer for measurement of the irreversibility of the hygroscopic growth factor.
Rosenoern T, et al.
Aerosol Science and Technology, 43(7), 641-652 (2009)
Influence of yeast strain on Shiraz wine quality indicators.
Holt H, et al.
International Journal of Food Microbiology, 165(3), 302-311 (2013)
Ammonium Compounds.
Weston CW, et al.
Kirk-Othmer Encyclopedia of Chemical Technology (2003)
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