Appearance

White crystallization pellet or crystalline powder

colorless or pale yellow viscous liquid

Items

Technical Grade

Medical Grade

Photo Grade

Technical Grade

Main content

≥98.5%

≥99.0%

≥99.5%

≥45%

Loss on drying

≤1.0%

≤0.5%

≤0.3

--

Chloride

≤1.5%

≤0.6%

≤0.3%

≤1.0%

Bromate

No reaction

≤0.003%

≤0.003%

No reaction

Iodide

Qualified

≤0.01%

≤0.005%

Qualified

Sulphate

≤0.1%

≤0.02%

≤0.01%

≤0.1%

PH Value(5% water)

5.5-10.5

5.5-8.0

5.5-8.0

4-6

Packing

25KG/bags or1000KG/bags

340KG/drum,PE drum