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09980

Sigma-Aldrich

Ammonium sulfate

puriss. p.a., ACS reagent, ≥99.5% (T)

Synonym(s):

Mascagnite

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About This Item

Linear Formula:
(NH4)2SO4
CAS Number:
Molecular Weight:
132.14
EC Number:
MDL number:
UNSPSC Code:
12352300

grade

ACS reagent
puriss. p.a.

Assay

≥99.5% (T)

ign. residue

≤0.005% (as SO4)

pH

5.0-6.0 (25 °C, 50 mg/mL in H2O)

mp

>280 °C (dec.) (lit.)

density

1.77 g/mL at 25 °C (lit.)

anion traces

chloride (Cl-): ≤5 mg/kg
nitrate (NO3-): ≤10 mg/kg
phosphate (PO43-): ≤5 mg/kg

cation traces

As: ≤0.2 mg/kg
Ca: ≤10 mg/kg
Cd: ≤1 mg/kg
Co: ≤5 mg/kg
Cr: ≤5 mg/kg
Cu: ≤2 mg/kg
Fe: ≤2 mg/kg
K: ≤50 mg/kg
Mg: ≤5 mg/kg
Mn: ≤5 mg/kg
Na: ≤50 mg/kg
Ni: ≤5 mg/kg
Pb: ≤2 mg/kg
Zn: ≤1 mg/kg

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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Storage Class Code

13 - Non Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Information

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D A DePasquale et al.
Applied and environmental microbiology, 56(12), 3711-3717 (1990-12-01)
In this study we examined the mechanism by which ammonium bicarbonate inhibits mycotoxigenic fungi. Elevated extracellular pH, alone, was not responsible for the antifungal activity. Although conidia of Penicillium griseofulvum and Fusarium graminearum had internal pH (pHi) values as high
Separation of proteins by ammonium sulfate gradient solubilization.
T P King
Biochemistry, 11(3), 367-371 (1972-02-01)
Neutron-Diffraction Study of the Structures of Ferroelectric and Paraelectric Ammonium Sulfate.
Schlemper EO, et al.
J. Chem. Phys. , 44(12), 4498-4509 (1966)
Deliquescence and crystallization of ammonium sulfate particles internally mixed with water-soluble organic compounds
Parsons MT, et al.
The Journal of Physical Chemistry A, 108(52), 11600-11608 (2004)
Simon Gareth Broadley et al.
Acta crystallographica. Section D, Biological crystallography, 68(Pt 11), 1450-1459 (2012-10-24)
MshB, a zinc-based deacetylase, catalyses a step in the mycothiol biosynthetic pathway that involves the deacetylation of 1-O-(2-acetamido-2-deoxy-α-D-glucopyranosyl)-D-myo-inositol (GlcNAc-Ins), via cleavage of an amide bond, to 1-O-(2-amino-2-deoxy-α-D-glucopyranosyl)-D-myo-inositol (GlcN-Ins) and acetate. In this study, MshB was expressed, purified and crystallized. A

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