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Tetra Sodium pyrophosphate

 

Product name: Tetra Sodium pyrophosphate
Molecular formula: Na4P2O7
Molecular Weight: 265.9
CAS Number: 7722-88-5
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 .
Specifications:

NO	Specifications	Industrial Grade	Food Grade
1	Appearance	white powder or granular
2	Assay (as Na4P2O7 )%≥	96.5	96.5
3	P2O5 %≥	51.5	51.5
4	Ortho Phosphates	pass	pass
5	PH Value	9.9-10.7	9.9-10.7
6	Water Insoluble matter % ≤	0.1	0.1
7	Size (through 60mesh sieve)	90.0	90
8	Fluoride (as F) ≤	0.005
9	Heavy Metals (as Pb) % ≤	0.001
10	Arsenic (As)% ≤		0.0003
11	L.O.I% ≤	0.5

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.
Packing and storage:
In 25kg,50kg,1000kg net bage,20mt/FCL.Store at a cool,dry and well ventilated place.