Physical and Chemical Properties: light yellowish crystal powder, bitter odor, with hygroscopicity; soluble in alcohol and water, slight soluble in toluene and benzene, insoluble in methyl trichloride, ethyl trichloride, crude gasoline, heptane, xylene and carbon disulfide, etc.

Character:

Item	Index
Appearance	Light gray yellow rough grain
Melting point °C	more than 280
Purity	more than 93% (dried earople)
Isolated albali	Less than 1.0%
Solubilty	Soluble for water alcohol and Glycol Insoluble in petroleum hgdrocarbon

Uses: used as activating accelerant for dithiocarbamate in natural rubber and butyl rubber, also used as corrosive inhibitor for steel and iron, copper and aluminum products after preparing into the solution with water or alcohol.