Disodium Hydrogen Phosphate

Disodium Hydrogen Phosphate Product Quality Indicators
Analysis items	Specification
Analysis items	Pharmaceutical Grade	Food Grade	Feed Grade	Industrial Grade
Content (calculated as Na₂HPO₄)	≥99.0% (USP/EP)	≥98.0% (GB 25557/FCC)	≥96.0%	≥94.0%
pH Value (1% Aqueous Solution)	8.8-9.2	8.5-9.5	-	-
Loss on Drying (120℃)	≤0.5%	≤2.0% (Dihydrate)	≤3.0%	≤5.0%
Heavy Metals (calculated as Pb)	≤5 ppm	≤10 ppm	≤15 ppm	≤30 ppm
Arsenic (As)	≤1 ppm	≤2 ppm	≤3 ppm	≤5 ppm
Lead (Pb)	≤0.5 ppm	≤1 ppm	≤2 ppm	≤5 ppm
Fluorides (F)	≤10 ppm	≤15 ppm	≤20 ppm	≤50 ppm
Insoluble in Water	≤0.005%	≤0.01%	≤0.05%	≤0.2%
Sulfates (SO₄)	≤0.01%	≤0.02%	≤0.1%	≤0.5%
Iron (Fe)	≤20 ppm	≤30 ppm	≤50 ppm	≤200 ppm
Chlorides (Cl)	≤0.005%	≤0.01%	≤0.05%	≤0.1%
Impurities in Sodium Dihydrogen Phosphate	≤0.1%	≤0.5%	≤1.0%	≤2.0%

Application Scope

1、Food Processing: As a food additive, it is commonly used in meat, dairy products, etc., with the role of fresh-keeping and improving texture.

2、Chemical Industry: As a buffer, it adjusts the pH value in chemical reactions to promote the progress of reactions.

3、Cleaner: As a component of detergents, it enhances the cleaning effect and is widely used in household and industrial cleaning products.

4、Water Treatment: It is used as an auxiliary in the water treatment process to help remove metal ions in water.

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