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Sodium Pyrophosphate

Molecular Formula：Na4P2O7
Molecular Weight：265.902
CAS NO：7722-88-5
Packaging：25Kg Bagged

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Detailed Info

Sodium Pyrophosphate Product Quality Indicators
Analysis Items	Specification
Analysis Items	Pharmaceutical - grade	Food - grade	Feed - grade	Industrial - grade
Content (calculated as Na₄P₂O₇)	≥99.0% (USP)	≥97.5% (FCC)	≥96.0%	≥94.0%
pH value (1% aqueous solution)	10.0 - 10.8	9.8 - 10.5	-	-
Loss on Drying (110℃)	≤0.5%	≤1.0%	≤2.0%	≤3.0%
Heavy Metals (calculated as Pb)	≤5 ppm	≤3 ppm	≤10 ppm	≤20 ppm
Arsenic (As)	≤0.5 ppm	≤0.3 ppm	≤1 ppm	≤3 ppm
Lead (Pb)	≤1 ppm	≤0.5 ppm	≤2 ppm	≤5 ppm
Fluoride (F)	≤10 ppm	≤5 ppm	≤15 ppm	≤30 ppm
Insoluble Matter in Water	≤0.005%	≤0.01%	≤0.1%	≤0.5%
Sulfate (SO₄)	≤0.01%	≤0.02%	≤0.1%	≤0.3%
Iron (Fe)	≤20 ppm	≤15 ppm	≤30 ppm	≤100 ppm
Carbonate	≤0.1%	≤0.2%	-	-
Orthophosphate	≤0.5%	≤1.0%	≤2.0%	≤3.0%

Application Scope

1. Food Industry: As an additive and preservative.

2. Chemical Synthesis: Used as a buffer and emulsifier.

3. Detergents: Used in detergents and cleaning products.

【Label Description】

Pharmaceutical - grade Sodium Pyrophosphate, Food - grade Sodium Pyrophosphate, Feed - grade Sodium Pyrophosphate, Industrial - grade Sodium Pyrophosphate