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Items

Potassium Bromide（KBr）

Industry Grade

Medicine Grade

Photo Grade

Appearance

White Crystal

Assay, %

99.0 MIN

99.3 MIN

99.5 MIN

Chlorides, %

0.2MAX

0.2 MAX

0.2 MAX

Sulphates, PPM

200 MAX

100 MAX

50 MAX

Loss on Drying, %

0.5 MAX

0.5 MAX

0.3 MAX

Heavy Metal (as Pb, Hg)PPM

5.0 MAX

5.0 MAX

3.0 MAX

Arsenic, PPM

4.0 MAX

4.0 MAX

4.0 MAX

Volatile, %

----

Qualified

0.5 MAX

Bromates, PPM

Qualified

Qualified

10 MAX

Iodide, PPM

----

Qualified

50 MAX

Minor Elements, PPM

----

Qualified

0.5 MAX

PH Value

Qualified

Qualified

5.5-5