Potassium sulfate, 99%, Thermo Scientific Chemicals

Description

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.

Specifications

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

• Boiling Point: 1689°C
• Melting Point: 1,069°C
• Quantity: 5000 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

Safety and Handling

DOTInformation	Hazard Class: 9; Packaging Group: III
EINECSNumber	231-915-5
RTECSNumber	TT5900000
TSCA	Yes
Recommended Storage	Ambient temperatures

SDS

RUO – Research Use Only