Potassium sulfate, 99.99% (metals basis)

Product Code.	Quantity	unitSize
11327288	5 g	5g
11307288	25 g	25g
11317288	100 g	100g

Product Code. 11327288 Supplier Thermo Scientific Alfa Aesar Supplier No. 030485.06

Description

CAS: 7778-80-5 | K2O4S | 174.25 g/mol

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 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 also used in the separation of protein through electrophoresis. It 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.

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
• SMILES: [K+].[K+].[O-]S([O-])(=O)=O

• Boiling Point: 1689°C
• Melting Point: 1,069°C
• Physical Form: Powder
• Quantity: 5 g
• Merck Index: 14,7674
• Solubility Information: Soluble in water and glycerol. Insoluble in alcohol,acetate and carbon disulfide.
• IUPAC Name: dipotassium sulfate
• Formula Weight: 174.27
• Percent Purity: 99.99%
• Odor: Odorless
• Density: 2.662 g/mL
• Assay: (metals basis)
• Chemical Name or Material: Potassium sulfate

RUO – Research Use Only