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A2939

Sigma-Aldrich

Ammonium sulfate

BioXtra, ≥99.0%

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Synonym(s):
Mascagnite
Linear Formula:
(NH4)2SO4
CAS Number:
Molecular Weight:
132.14
EC Number:
MDL number:
eCl@ss:
38030408
PubChem Substance ID:
NACRES:
NA.25

product line

BioXtra

Quality Level

assay

≥99.0%

form

powder or crystals

impurities

Insoluble matter, passes filter test

ign. residue

<0.01% (as SO4)

loss

≤1.0% loss on drying, 110°C

pH

5.0-6.0 (20 °C, 1 M in H2O)

mp

>280 °C (dec.) (lit.)

solubility

H2O: 1 M, clear, colorless

density

1.77 g/mL at 25 °C (lit.)

anion traces

chloride (Cl-): ≤0.001%
nitrate (NO3-): ≤0.001%
phosphate (PO43-): ≤0.0005%

cation traces

Al: ≤0.0005%
As: ≤0.0001%
Ba: ≤0.0005%
Bi: ≤0.0005%
Ca: ≤0.001%
Cd: ≤0.0001%
Co: ≤0.0005%
Cr: ≤0.0005%
Cu: ≤0.0002%
Fe: ≤0.0002%
K: ≤0.005%
Li: ≤0.0005%
Mg: ≤0.0005%
Mn: ≤0.0005%
Mo: ≤0.0005%
Na: ≤0.005%
Ni: ≤0.0005%
Pb: ≤0.0002%
Sr: ≤0.0005%
Zn: ≤0.0001%

absorption

≤0.030 at 280 in H2O at 1 M
≤0.037 at 260 in H2O at 1 M

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

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Application

Ammonium sulfate has been used as an additive in salting-out procedure to prepare the g-globulin fraction. It is also used as a component in synthetic minimal dextrose (SD) liquid medium.

Biochem/physiol Actions

Ammonium sulfate ((NH4)2SO4) is mainly used as a soil fertilizer. It is also used as a wood preservative. This inorganic salt plays a role in flame retardant chemicals.

Storage Class

11 - Combustible Solids

wgk_germany

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)


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