SODIUM HYDROXIDE (HYDROXYDE DE SODIUM)
Brief Introduction of Sodium Hydroxide
Sodium Hydroxide (Caustic Soda, , UN 1823) is classified as Class 8 corrosive hazardous goods.
In gold leaching and mineral flotation:
1. It is an essential pH regulator for cyanide gold extraction. It maintains strong alkaline slurry environment, prevents sodium cyanide from decomposing into toxic hydrogen cyanide gas, and ensures smooth dissolution of gold into cyanide complex.
2. In sulfide ore flotation, it raises slurry alkalinity to depress pyrite and other gangue minerals, improving the purity of metal concentrate.
3. It modifies clay slime properties to optimize the fluidity of ore slurry.
It is also widely used for acid mine wastewater neutralization, cyanide wastewater pretreatment and industrial equipment degreasing.
Solid caustic soda is generally packed in 25kg woven bags with inner plastic liner for export.

Working sulfuric acid
HYDROCHLORIC ACID31% INDUSTRIALGRADE