Sodium pyrophosphate (Food grade)

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I. Chemical Name: Anhydrous Sodium pyrophosphate, Sodium pyrophosphate decahydrate

Ⅱ. Molecular formula: Na₄P₂O₇ Na₄P₂O₇·10H₂O

Ⅲ. Molecular Weight: 265.90 446.05

IV. Properties: Sodium pyrophosphate decahydrate is colorless crystal or white crystalline powder. Anhydrous matter is white powder, Aq. solution is basic.

V. Quality Standard:

Index name	Food grade: GB 25557-2010/FCC
	Anhydrous	Sodium pyrophosphate decahydrate
	96.5-100.5	-
Assay(Na₄P₂O₇)≥%	96.5-100.5	-
Assay (as Na₄P₂O₇·10H₂O)≥%	0.20	0.20
Water insoluble ≤%	9.9-10.7
PH value(10g/L Solution )	Past test
Orthophosphate	0.0003
As ≤%	0.001	0.001
Heavy metals (as Pb) ≤%	0.005	0.005
F≤%	0.0004	0.0004
Pb ≤%	0.20	0.20
Loss on heat %	≤0.50	38.0-42.0

VI. Packing: PE bag lined composite plastic woven bag. Net wt 25KG, or Net wt 40KG.

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