Zinc Sulfate Hexahydrate
Zinc Sulfate Hexahydrate
Areas of Use, Benefits, Sectors
Learn about the uses, advantages, and industry-specific benefits of zinc sulfate hexahydrate in agriculture, feed, coatings, flotation, textiles, and the chemical industry.
What is Zinc Sulfate Hexahydrate?
Zinc sulfate hexahydrate (ZnSO₄·6H₂O) is the crystalline form of zinc sulfate, containing 6 water molecules per molecule. It appears as a white crystalline/powder. Its zinc content lies between that of heptahydrate and monohydrate. It is used in agriculture, feed, textiles, metal plating, flotation, and the chemical industry.
Main Areas of Application
1) Agriculture (Plant Nutrition and Fertilizers)
• Zinc source: Can be used in soil and foliar applications to address zinc deficiency.
• It offers an intermediate option as its zinc content is higher than heptahydrate but lower than monohydrate.
• It is particularly beneficial in addressing zinc deficiency, especially in grains and legumes.
2) Feed Industry (Animal Nutrition)
• Mineral additive: Used in animal feed to prevent zinc deficiency.
• It is added to premix formulations as a mineral supplement to support growth, immunity, and productivity.
3) Metal Coating / Electrogalvanizing
• It acts as an electrolyte in zinc plating baths.
• Used in the production of corrosion-resistant surfaces.
4) Mineral Enrichment (Depressant in Flotation)
• It is used as a sphalerite (ZnS) depressant in the separation of Cu-Pb-Zn ores.
• It enables selective flotation and increases process efficiency.
5) Textiles and Paper (Mordant, Finishing)
• In textile dyeing, it acts as a mordant to increase the adhesion of dye to fibers.
• It adds an additive that improves the appearance and durability of paper.
6) Chemical Industry
• Intermediate in the production of lithopone pigments.
• Coagulant in rayon production,
• It plays a role as a reactant and raw material in various chemical syntheses.
7) Water and Surface Applications
• Some technical data sheets indicate its use for algae/biofilm control.