Items

Photo Grade

Medical Grade

Technical Grade

Main content

99.5% min

99.0% min

99.0% min

Loss on drying

0.3% max

0.5% max

1.0% max

Chloride

0.3% max

0.6% max

1.0% max

Bromate

0.003% max

0.003% max

No reaction

Iodide

0.005% max

0.01% max

Qualified

Sulphate

0.01% max

0.02% max

0.1% max

PH Value(5%)

5.5—8.0

5.5—8.0

5.5—10.5

As

0.5ppm max

4ppm max

－

Pb

0.5ppm max

4ppm max

10ppm max

Fe

1ppm max

4ppm max

－

Cu

1ppm max

—

—

Transparency  test

Qualified

—

—

Packing

25kgs PE/pp bags or 1000 kg ton bag packing,25MT/20`FT