Тетра-пирофосфат натрия (TSPP)

Tetra Sodium pyrophosphate 1).Molecular formula: Na4P2O7 2).Molecular Weight: 265.9 3).Packing:25kg woven bag 4).Volume/ 20FCL: 22MT 5).Payment term:L/C at sight or T/T (30% T/T in advance, 70% against the copy of B/L). 6).Standard executed: HG/T2968-1999(Technical Grade), GB8848-88(Food Grade) 7).Properties: White powder; Soluble in water but insoluble in ethanol; Relative density 2.45 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 . 8).Usage 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. 9).Specifications: NO SpecificationsIndustrial GradeFood Grade1Assay (as Na4P2O7 )%≥96.596.52P2O5 %≥51.551.53Ortho Phosphatespasspass4PH Value9.9-10.79.9-10.75Water Insoluble matter % ≤0.200.206Size (through 60mesh sieve)90907Fluoride (as F) ≤0.0058Heavy Metals (as Pb) % ≤0.0019Arsenic (As)% ≤0.000310L.O.I. % ≤0.50