Property:

Soluble in water, insoluble in ether, slightly soluble in ethanol.

Usage:

1, used in the dye industry for the production of sulfur dyes, is the raw material of sulfur blue and sulfur blue.

2, adding an appropriate amount of sodium sulfide in aluminum and alloy alkaline etching solution can significantly improve the quality of the etching surface, and can also be used for the removal of alkali-soluble heavy metal impurities such as zinc in alkaline etching solution.

3. Sodium sulfide can also be used for the treatment of conductive layers in direct plating.

4, used as corrosion inhibitor. It is also a raw material for sodium thiosulfate, sodium polysulfide, sulfide dyes, etc.

5, used in the manufacture of sulfur dyes, leather hair removal agents, metal smelting, photography, rayon denitrification and so on.