Mainly used as sensitization film, photograph mulsion material; medicine, plastic, printing, foaming, water conservation, etc.

Items technical index
grade: sensitomtric medical industrial
appearance: white crystal white crystal white crystal
main content: ≥99.4% ≥99.0% ≥98.5%
Loss on drying: ≤0.5% ≤1.0% ≤1.0%
bromate: ≤30PPM non-reaction non-reaction
chloride: ≤0.3% ≤0.6% ≤1.5%
sulphate: ≤100PPM ≤200PPM ≤500PPM
Fe: ≤0.5PPM - -
Pb: ≤0.2PPM - -
heavy metal: ≤10PPM - -
Cu: ≤0.5PPM - -
mercury: ≤3PPM - -
iodide: ≤50PPM - -
arsenic: ≤0.2PPM -
PH(5%): 5.5-8.5 5.5-8.5 -

Packing: usually 25kgs PE/PP bag