Character：
　　Orange plate—like ,easily dissolved into water, both alcohol and ethyl glycol can also be its solvent. Its melting point is 350℃，hydrogen sulfide’ll be decomposited while dissolving and takes alkalinity in its water solution. In general it reacts with acids and liberate hydrogen sulfide and looks like orange or yellow liquid for quality of industry grade .

Use:
　　As intermediate of organic synthetic in dye industry , adjuvant of sulfur dye making, raw hide or tanning in leather industry, cast off monomer sulfur in acticarbon in chemical fertilizer industry ，quite a lot is used in selection of copper in mine industry ，sulfurous acid dying in man-made fiber. It’s raw material of semiproduct in both aminium sulfide making and pesticide (ethyl mercaptan ), is used in treatment of waste water too.

Production tech：
　　Akali or sodium hydrate solution absorb hydrogen sulfide.

Package：
　　 Plate-like solid ，packed paper bucket，each one contains Net weight of 50kg or plastic woven bag, each bag contains Net weight of 25kg，otherwise depends on clients demand.