For procurement specialists, R&D scientists, and formulation chemists, a thorough understanding of a chemical's properties and specifications is the cornerstone of successful sourcing. Potassium Pyrosulfate, identified by its CAS number 7790-62-7, is an inorganic compound that warrants detailed consideration due to its specific applications. NINGBO INNO PHARMCHEM CO.,LTD., a dedicated manufacturer and supplier, provides insights into this essential chemical.

Potassium Pyrosulfate, also known as dipotassium disulfate, possesses the molecular formula K2O7S2. This signifies a compound composed of two potassium ions and the pyrosulfate anion. Its molecular weight is approximately 254.32 g/mol. Physically, it is typically observed as a white crystal or crystalline powder. Its appearance is a crucial first indicator of purity and quality for buyers. When searching to buy Potassium Pyrosulfate, look for this characteristic white, crystalline form.

The key functional properties of Potassium Pyrosulfate stem from its acidic nature. When dissolved in water, it hydrolyzes to form potassium bisulfate, resulting in a strongly acidic solution. This characteristic makes it an effective acidic solvent, capable of dissolving substances that are otherwise difficult to process. This property is fundamental to its utility in various analytical procedures, including the decomposition of certain minerals and metal oxides, and as an inclusion agent in steel analysis for electrolytic metal determination.

Specifications for Potassium Pyrosulfate are critical for ensuring its suitability for specific applications. A high-purity grade typically boasts an assay of ≥98.0% Potassium Pyrosulfate. Furthermore, a low content of impurities is equally important. Manufacturers commonly specify limits for:

  • Water insoluble matter: ≤0.01%
  • Chloride: ≤0.01%
  • Phosphate: ≤0.01%
These parameters are essential for applications where even minute contaminants could interfere with analytical results or chemical reactions. When requesting a quote, always ask for detailed specifications and the availability of a Certificate of Analysis (COA) from the supplier.

Understanding these fundamental properties and specifications empowers buyers to make informed decisions when sourcing Potassium Pyrosulfate. Partnering with manufacturers like NINGBO INNO PHARMCHEM CO.,LTD. ensures access to reliable product information and a consistent supply of quality chemical. Whether for laboratory analysis or industrial use, a clear understanding of K2O7S2 is the first step to successful procurement.