Item

Specification

Grade

Industry grade

Result

Colour

≦30

≤20

H3PO4? content? %

≥85.0

88

Chlorid

≤0.001

0.001

sulfate

≤0.01

0.01

Fe content %

≤0.005

0.005

As content %

≤0.01

≤0.01

Heavy Metal

≤0.05

0.05