Property：Colorless, transparent single oblique crystals,
specific gravity 1.729. It's soluble in water easily,
with strong reducing property.
Usage：Used in photographic, electroplate, purifying
soft water and tanning processing hides, it also can be used as reducing agent,
deoxidizer, sulfur dyeing agent, anti-white agent, detergent, disinfectant and
color coat agent, etc.
Packing：Net in 25KG plastic woven bags.