| ≥1 piece |
Tetra sodium pyrophosphate
Molecular formula: Na4P2O7
Molecular Weight: 265.9
Standard executed: GB8848-88(Food Grade)
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 .
Uses:
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.
Specifications:
N O Specifications Food Grade 1 Assay (as Na 4 P 2 O 7 )%≥ 96.5 2 P 2 O 5 %≥ 51.5 3 Ortho Phosphates pass 4 PH Value 9.9-10.7 5 Water Insoluble matter % ≤ 0.20 6 Size (through 60mesh sieve) 90 7 Fluoride (as F) ≤ 0.005 8 Heavy Metals (as Pb) % ≤ 0.001 9 Arsenic (As)% ≤ 0.0003 10 L.O.I. % ≤ 0.50