Name: Tetra Sodium Pyrophosphate ( Food Grade ) Synonyms: Sodium Pyrophosphate Molecular formula: Na4P2O7 H.S Code: 2835.3900 30 Standard executed: HG29231999 Properties: White powder; Soluble in water but insoluble in ethanol; Relative density 2.45g/ cm3and 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 . Spec: NO. Specifications Unit Food Grade 1 Appearance white powder or white granular 2 Assay ( as Na4P2O7 ) % e96.5 3 Ortho Phosphates pass 4 PH Value 9.9-10.7 5 Water Insoluble matter % d0.1 6 Fluoride ( as F) ppm d50 7 Heavy Metals ( as Pb) ppm d10 8 Arsenic ( As) ppm d3 9 Loss on drying % d0.5 Application: Used as buffering agent, emulsifying agent , nutrition intensifier and quality improver. regulate PH value and intensify water retentivity of meat , intensify the machining character of noodles products and improve its quality , as quality improver in canned products , fruit juice drinks and dairy products etc, prevent fruit from changing color after machining , emulsifier for cheese, additive for soy and soybean milk , also as detergent for egg, etc.