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Potassium sulfate, 99%, Thermo Scientific Chemicals

Catalog No. AAA139750B
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Potassium sulfate is used in the production of fertilizers (i.e. providing potassium and sulfur), potassium alum, potassium carbonate and glass. In analytical chemistry, it is used in the determination of nitrogen by the Kjeldahl method and protein in foodstuffs. Also, it is used in the electrostatic effects on pKa values of amino acid residues in the staphylococcal nuclease. It is used in the separation of protein through electrophoresis and also serves as a laboratory reagent.

This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

Applications
Potassium sulfate is used in the production of fertilizers (i.e. providing potassium and sulfur), potassium alum, potassium carbonate and glass. In analytical chemistry, it is used in the determination of nitrogen by the Kjeldahl method and protein in foodstuffs. Also, it is used in the electrostatic effects on pKa values of amino acid residues in the staphylococcal nuclease. It is used in the separation of protein through electrophoresis and also serves as a laboratory reagent.

Solubility
Soluble in water and glycerol. Insoluble in alcohol, acetate and carbon disulfide.

Notes
Incompatible with strong oxidizing agents.

Chemical Identifiers

CAS

7778-80-5

Molecular Formula

K2O4S

Molecular Weight (g/mol)

174.25

MDL Number

MFCD00011388

InChI Key

OTYBMLCTZGSZBG-UHFFFAOYSA-L

Synonym

potassium sulfate, dipotassium sulfate, potassium sulphate, sulfuric acid dipotassium salt, sal polychrestum, sulfuric acid, potassium salt, arcanum duplicatum, kalium sulphuricum, caswell no. 702, sulfuric acid, dipotassium salt

PubChem CID

24507

ChEBI

CHEBI:32036

IUPAC Name

dipotassium sulfate

SMILES

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

Specifications

Boiling Point

1689°C

Melting Point

1,069°C

Quantity

1000 g

Merck Index

14,7674

Solubility Information

Soluble in water and glycerol. Insoluble in alcohol,acetate and carbon disulfide.

Formula Weight

174.27

Percent Purity

99%

Odor

Odorless

Density

2.662

Chemical Name or Material

Potassium sulfate

DOTInformation

Hazard Class: 9; Packaging Group: III

EINECSNumber

231-915-5

RTECSNumber

TT5900000

TSCA

Yes

Recommended Storage

Ambient temperatures
SDS

RUO – Research Use Only

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