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TSPP
Category : Inorganic chemicals
CAS NO : 7722-88-5（Anhydrous）?13472-36-1(10H20) EC NO : 231-767-1 MF : Na4P2O7 MW : 265.9 Packing : In double layer bags of 25Kg net. It must be stored in places well ventilated and dry. Product description : Category :
phosphate Product name : Tetra Sodium Pyrophosphate(TSPP) Description : Tetra?Sodium?Pyrophosphate(TSPP)?Byname: Tetra Sodium pyrophosphate
Molecular formula: Na4P2O7
Molecular Weight: 265.9
Standard executed: HG/T2968-1999(Technical Grade)
?????????????????????????????????? ???? GB8848-88(Food Grade)
Properties:
White powder; Soluble in water but insoluble in ethanol; Relative density 2.45g/cm3 and melting point 890 ; Deliquescent in the open air. Its aqueous solution shows weak alkalinity and is stable at 70 but will be hydrolyzed into di-sodium phosphate when boiled .
Guaranteed Technical Specifications:NOSpecificationsIndustrial GradeFood Grade1Assay (as Na4P2O7 )%≥96.596.52P2O5 %≥51.551.53Ortho Phosphatespasspass4PH Value9.9-10.79.9-10.75Water Insoluble matter % ≤0.20.26Size (through 60mesh sieve)90907Fluoride (as F) ≤?0.0058Heavy Metals (as Pb) % ≤?0.0019Arsenic (As)% ≤?0.000310L.O.I. % ≤?0.5Uses : Applied in industries of detergents as detergent auxiliary, paper production to bleach and electroplating; In food industry it is used as buffering agent, emulsifier, nutrition ingredients and quality improver. Synonyms : Sodium pyrophosphate;Tetrasodium pyrophosphate;TSPP;Tetra Sodium Pyrophosphate;Tetrasodium Diphosohate; Molecular Structure : 
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