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pigment for rubber
Property: White, yellow or red thin flake with an odor of rotten eggs; Easily soluble in water, presenting strong alkaline solution; Easily oxidized when exposed in air; Contact with acids releases poisonous gas (H2S) . Corrosive, cause burns; Harmful, if swallowed.
Use in dyestuff industry, tanning industry, leather industry, textile industry, pigment and rubber industry etc.
It is also used as raw material to produce sodium thiosulfate, sodium hydrosulfide.
1. Common Grade (1500ppm Ferric Content)
2. Low ferric Grade (150/80/50/30/20ppm Ferric Content)
3. Extra-low ferric Grade
4. Crystal Grade
5. Anhydrous Grade