... thiosulfate, also known as thiosulfate, which is monoclinic white crystalline powder, specific gravity 1.667, soluble in water, insoluble in alcohol ... for fixative. Dichromate tanning when a reducing agent, nitrogen exhaust neutralizer, mordant, straw and hair bleach, and dechlorination of pulp bleaching ... hospital for medical treatment must not delay. sodium thiosulphate anhydrous powder