TSPP 7722-88-5（Anhydrous） 13472-36-1(10H20)

Category :

Inorganic chemicals

CAS NO :

7722-88-5（Anhydrous） 13472-36-1(10H20)

EC NO :

231-767-1

MF :

Na₄P₂O₇

MW :

265.9

Packing :

In double layer bags of 25Kg net. It must be stored in places well ventilated and dry.

Product description :

Category :

phosphate

Product name :

Tetra Sodium Pyrophosphate(TSPP)

Description :

Tetra Sodium Pyrophosphate(TSPP)

Byname: Tetra Sodium pyrophosphate
Molecular formula: Na4P2O7
Molecular Weight: 265.9
Standard executed: HG/T2968-1999(Technical Grade)
GB8848-88(Food Grade)
Properties:
White powder; Soluble in water but insoluble in ethanol; Relative density 2.45g/cm3 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 .
Guaranteed Technical Specifications:

NO	Specifications	Industrial Grade	Food Grade
1	Assay (as Na4P2O7 )%≥	96.5	96.5
2	P2O5 %≥	51.5	51.5
3	Ortho Phosphates	pass	pass
4	PH Value	9.9-10.7	9.9-10.7
5	Water Insoluble matter % ≤	0.2	0.2
6	Size (through 60mesh sieve)	90	90
7	Fluoride (as F) ≤		0.005
8	Heavy Metals (as Pb) % ≤		0.001
9	Arsenic (As)% ≤		0.0003
10	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.

Synonyms :

Sodium pyrophosphate;Tetrasodium pyrophosphate;TSPP;Tetra Sodium Pyrophosphate;Tetrasodium Diphosohate;

Molecular Structure :

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