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Merck
CN

31270

Sigma-Aldrich

Potassium sulfate

puriss. p.a., ACS reagent, reag. ISO, ≥99%

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About This Item

Linear Formula:
K2SO4
CAS Number:
7778-80-5
Molecular Weight:
174.26
EC Number:
231-915-5
MDL number:
MFCD00011388
UNSPSC Code:
12352302
PubChem Substance ID:
329753714
Assay:
≥99%

Key Documents

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grade

ACS reagent
puriss. p.a.

Agency

Ph. Eur.
USP/NF
reag. ISO

Assay

≥99%

impurities

residual solvents, complies
≤0.0005% heavy metals (as Pb)
≤0.0005% total nitrogen (N)
≤0.005% in water insoluble matters

anion traces

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

cation traces

As: ≤1 mg/kg
Ca: ≤50 mg/kg
Cd: ≤5 mg/kg
Cu: ≤5 mg/kg
Fe: ≤5 mg/kg
Mg: ≤20 mg/kg
Na: ≤50 mg/kg
Pb: ≤5 mg/kg
Zn: ≤5 mg/kg

suitability

in accordance for appearance of solution

SMILES string

[K+].[K+].[O-]S([O-])(=O)=O

InChI

1S/2K.H2O4S/c;;1-5(2,3)4/h;;(H2,1,2,3,4)/q2*+1;/p-2

InChI key

OTYBMLCTZGSZBG-UHFFFAOYSA-L

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Storage Class Code

13 - Non Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Regulatory Information

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Eagleson M.
Concise Encyclopedia Chemistry, 890-890 (1994)
Minimizing adsorption of proteins on fused silica in capillary zone electrophoresis by the addition of alkali metal salts to the buffers.
Green JS and Jorgenson JW.
Journal of Chromatography A, 478, 63-70 (1989)
Synthesis of needlelike mullite particles using potassium sulfate flux.
Hashimoto S and Yamaguchi A.
J. Eur. Ceram. Soc., 20(4), 397-402 (2000)
Xinjian Shi et al.
Nature communications, 5, 4775-4775 (2014-09-03)
Tungsten trioxide/bismuth vanadate heterojunction is one of the best pairs for solar water splitting, but its photocurrent densities are insufficient. Here we investigate the advantages of using helical nanostructures in photoelectrochemical solar water splitting. A helical tungsten trioxide array is
Jinyong Yan et al.
Bioresource technology, 102(7), 4755-4758 (2011-02-01)
A dual modification procedure composed of cross-linking and protein coating with K(2)SO(4) was employed to modify Geotrichum sp. lipase for catalyzing biodiesel production from waste cooking oil. Compared to single modification of protein coating with K(2)SO(4), the dual modification of
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