Potassium sulfate, 99+%, for analysis, anhydrous powder, ACROS Organics™

Product Code	Brand	Quantity	Packaging
10052720	Acros Organics 207775000	500g	Plastic bottle
10502364	Acros Organics 207770050	5kg	Plastic bottle

Chemical Identifiers

• CAS: 7778-80-5
• Molecular Weight (g/mol): 174.25
• InChI Key: OTYBMLCTZGSZBG-UHFFFAOYSA-L
• PubChem CID: 24507
• IUPAC Name: dipotassium;sulfate

• Molecular Formula: K₂O₄S
• MDL Number: MFCD00011388
• 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
• ChEBI: CHEBI:32036
• SMILES: [O-]S(=O)(=O)[O-].[K+].[K+]

Specifications

• Chemical Name or Material: Potassium sulfate
• CAS: 7778-80-5
• Molecular Formula: K₂O₄S
• MDL Number: MFCD00011388
• 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
• InChI Key: OTYBMLCTZGSZBG-UHFFFAOYSA-L
• IUPAC Name: dipotassium;sulfate
• PubChem CID: 24507
• Formula Weight: 174.25
• Percent Purity: 99+%
• Calcium (Ca): 50ppm max.
• Chlorine (Cl): 5ppm max.
• Heavy Metals (as Pb): 5ppm max.
• Magnesium (Mg): 20ppm max.
• Sodium (Na): 200ppm max.
• Boiling Point: 1689.0°C
• Melting Point: 1067.0°C
• Quantity: 500g

• Name Note: p.a.
• Assay Percent Range: 99+%
• Linear Formula: K₂SO₄
• Merck Index: 15, 7793
• Solubility Information: Solubility in water: 110g/L (20°C). Other solubilities: insoluble in alcohol
• SMILES: [O-]S(=O)(=O)[O-].[K+].[K+]
• Molecular Weight (g/mol): 174.25
• ChEBI: CHEBI:32036
• Physical Form: Very Fine Crystals or Powder
• Grade: Analysis
• Chloride: 5ppm max
• Density: 2.66
• Iron (Fe): 5ppm max.
• Packaging: Plastic bottle
• Total Nitrogen: 0.0005% max.
• Color: White
• pH: 6 to 8 (5% soln. at 20°C)