Tetra Sodium Pyrophosphate(TSPP)

White powder; Soluble in water but insoluble in ethanol

Tetra Sodium Pyrophosphate(TSPP)

By name:Tetra Sodium pyrophosphate

Molecular formula:Na4P2O7

Molecular Weight:265.9

Standard executed:HG/T2968-1999(Technical Grade)   GB8848-88(Food Grade)

CAS Number:7722-88-5

Properties:White powder; Soluble in water but insoluble in ethanol; Relative density 2.45g/cm3and melting point 890°C; Deliquescent in the open air. Its aqueous solution shows weak alkalinity and is stable at 70 °C 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.

Packing and storage:In 25kg,50kg,1000kg net bage, store at a cool, dry and well ventilated place.

Guaranteed Technical Specifications:

NO.	Specifications	Industrial Grade	Food Grade
1	Appearance	white powder or granular
2	Assay (as Na4P2O7 )%        ≥	96.5	96.5~100.5
3	P2O5 %                     ≥	51.5	51.5
4	Ortho Phosphates	pass	pass
5	PH value of 1% solution	9.9-10.7	9.9-10.7
6	Water Insoluble matter %     ≤	0.2	0.2
7	Fluoride (as F)               ≤	——	0.005
8	Heavy Metals (as Pb) %      ≤	——	0.001
9	Arsenic (As)%               ≤	——	0.0003
10	L.O.I%                     ≤	——	0.50

Tetra Sodium Pyrophosphate(TSPP)