Tetra Sodium Pyrophosphate(TSPP)-E452(iii) - Food Additive Phosphate - China Yeyuan Chemical Raw Material Supplier - PVC -...

Tetra Sodium Pyrophosphate(TSPP)-E452(iii)

Molecular formula: Na4P2O7

Molecular Weight: 265.9

National Standard:GB1886.328-2021

CAS Number: 7722-88-5

Other Name: TSPP

INS.: E452(iii)

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Performance and Usage

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 .

It is used as buffering agent, emulsifier, nutrition ingredients and quality improver.

Quality Specification

NO	Item	Specifications
1	Appearance	white powder or granular
2	Assay (as Na4P2O7 )%≥	96.5
3	P2O5 %≥	51.5
4	Ortho Phosphates	pass
5	PH Value	9.9-10.7
6	Water Insoluble matter % ≤	0.1
7	Size (through 60mesh sieve)	90
8	Fluoride (as F) ≤	0.005
9	Heavy Metals (as Pb) % ≤	0.001
10	Arsenic (As)% ≤	0.0003
11	Pb % ≤	0.0004
12	L.O.I% ≤	0.5