Specifications

Basic information

Colorless needle crystals. Easily deliquescent. Hydrogen sulfide is liberated at the melting point. Soluble in water and alcohol. The aqueous solution is strongly alkaline. It reacts with acid to produce hydrogen sulfide. The taste is bitter. Dye industry is used for the synthesis of organic intermediates and additives for the preparation of sulfur dyes, leather industry is used for hair removal and tanning of hides, chemical fertilizer industry is used to remove monomer sulfur from activated carbon desulfurizer, mining industry is widely used for copper ore dressing, man-made fiber production is used for sulfurous acid dyeing, etc., is the raw material for the manufacture of ammonium sulfide and pesticide ethanethiol semi-finished products, but also used for wastewater treatment. It is obtained by absorbing hydrogen sulfide gas from sulfide alkali or caustic soda solution.

Application areas

In the dye industry for the synthesis of organic intermediates and the preparation of sulfur dyes additives, in the tanning industry for raw skin hair removal and tanning, in the fertilizer industry for the removal of activated carbon desulfurization agent in the monomer sulfur, in the mining industry for a large number of copper ore dressing, in the production of man-made fibers for sulfuric acid dyeing.

Packaging, transportation and safety

Operation precautions: closed operation, local exhaust. Operators must be specially trained and strictly abide by the operating procedures. Operators are advised to wear dust mask (full face mask), rubberized clothing and rubber gloves. Keep away from fire and heat sources. Smoking is strictly prohibited in the workplace. Use explosion-proof ventilation systems and equipment. Prevent smoke or dust from leaking into the workplace air. Avoid contact with oxidants and acids. Lightly loaded and unloaded during handling to prevent packaging damage. Equipped with corresponding types and quantities of fire fighting equipment and leakage emergency treatment equipment. Empty containers may leave harmful substances.
Precautions for storage: Store in a cool and ventilated warehouse. Keep away from fire and heat source. Should be stored separately with oxidants, acids, edible chemicals, avoid mixed storage. Explosion-proof lighting and ventilation facilities shall be adopted. It is forbidden to use mechanical equipment and tools that are easy to produce sparks. The storage area should be equipped with leakage emergency treatment equipment and suitable containment materials. The "five pairs" management system for extremely toxic substances should be strictly implemented.