Specification

Technical grade

Food grade

Appearance

White powder

White powder

Content (base on NaH₂PO₄)       %

≥98

≥98

P₂O₅ content                            %

≥58

≥58

pH value (1% aqueous solution)

4.2-4.8

4.2-4.8

Water insoluble matters              %

≤0.1

≤0.1

Loss on drying                             %

≤2.0

≤2.0

Sulfate (base on SO₄)                 %

-

≤0.05

Chloride (base on Cl)                   %

-

≤0.014

Fluoride (base on F)                   %

-

≤0.005

Heavy metal (base on Pb)            %

-

≤0.001

Arsenic (base on As)                 %

-

≤0.0003