Item

Details(%)

GR

A.P.

C.P.

hydrogen fluoride ≥

42

40

40

chlorides(Cl) ≤

0.0005

0.002

0.005

sulphate(SO₄) ≤

0.0005

0.002

0.005

sulfite(SO₃) ≤

0.0005

0.002

0.002

phosphate(PO₄) ≤

0.0001

0.0002

0.0005

fluorosilicic acid(H₂SiF₆) ≤

0.005

0.04(SiO₂)

0.06(SiO₂)

Fe ≤

0.00005

0.0001

0.0005

Ni ≤

0.00001

-

-

Cu ≤

0.00001

-

-

Zn ≤

0.00001

-

-

Cd ≤

0.00001

-

-

Pd ≤

0.00005

-

-

As ≤

-

-

-

heavy metal(Pb) ≤

-

-

-

residue on ignition (sulphate)≤

0.0005

0.005

0.01