Sodium pyrosulfate

• CAT Number: M065249
• CAS Number: 13870-29-6
• Molecular Formula: Na2O7S2
• Molecular Weight: 222.093
• Purity: ≥95%
• Synonyms: Disodium disulfate
• Storage: Store at -20°C
• Related CAS: 958848-90-3; 7783-05-3
• IUPAC Name: disodium;sulfonato sulfate
• InChI: InChI=1S/2Na.H2O7S2/c;;1-8(2,3)7-9(4,5)6/h;;(H,1,2,3)(H,4,5,6)/q2*+1;/p-2
• InChIKey: JXAZAUKOWVKTLO-UHFFFAOYSA-L
• SMILES: [O-]S(=O)(=O)OS(=O)(=O)[O-].[Na+].[Na+]

Sodium pyrosulfate (Na2S2O7) is an inorganic compound used as a dehydrating agent and in various chemical synthesis processes. It is commonly employed in laboratories for preparing sulfates from their corresponding salts and as a reagent in analytical chemistry. Sodium pyrosulfate is also utilized in the production of detergents, glass, and ceramics, where it acts as a fluxing agent, lowering the melting point of raw materials. Additionally, it plays a role in metallurgy for the desulfurization of metal ores.