Tetrasodium pyrophosphate

Tetrasodium pyrophosphate Identification Name Tetrasodium pyrophosphate Synonyms Diphosphoric acid tetrasodium salt; Pyrophosphoric acid tetrasodium salt; Sodium diphosphate Molecular Formula Na4P2O7 Molecular Weight 265.90 CAS Registry Number 7722-88-5 EINECS 231-767-1 Properties Density 2.53 Safety Data Hazard Symbols Xi Details Risk Codes R36/37/38 Details Safety Description S26;S36 Details Packaging & Delivery Packaging Detail: in 25kg net paper bags with PE liner Delivery Detail prompt shipment Specifications White fine powder without smell and taste. Hardly soluble in water and enthanol, but soluble in lower density acid. Name of index Specifications FCC V Identification A&B Pass test Assay, % 95.0-100.5 Arsenic 3ppm max. Fluoride, % 0.005 max. Insoluble Substances, % 0.2 max. Lead 4ppm max. Loss on Ignition, % 0.5 max.