Feed Grade Zinc Sulfate Monohydrate 33% for Feed Premix

We supply three grades of zinc sulfate monohydrate powder: Feed Grade: 33% or 35% Zn content, CAS 7446-19-7, compliant with FAMI-QS and feed safety standards. Industrial Grade: 33% or 35% Zn content, suitable for electroplating, water treatment, and chemical synthesis. Agricultural Grade: 33% or 35% Zn content, ideal for soil fertilization and foliar nutrition to correct zinc deficiency in crops.

The core difference lies in zinc content: 33% grade: Lower zinc content, more cost-effective for bulk applications (e.g., general agricultural fertilization, industrial raw materials). 35% grade: Higher zinc concentration, preferred for high-end feed premixes and precision agriculture where nutrient density is critical. Both grades have stable physical properties and good solubility, with consistent quality from Polifar Group.

Yes. Our feed grade zinc sulfate (33%/35%) meets strict international feed safety standards (FAMI-QS, ISO 22000, HACCP). Heavy metals (Pb, As, Cd) are controlled well below regulatory limits. No harmful impurities or pathogens, ensuring safe use in swine, poultry, aquaculture, and ruminant feed. Full traceability from raw material to finished product for quality assurance.

Our industrial grade 33%/35% zinc sulfate is widely used in: Electroplating industry: As a zinc source for galvanizing and metal surface treatment. Water treatment: To remove impurities and control microbial growth in industrial wastewater. Chemical manufacturing: As a raw material for producing other zinc compounds, pigments, and preservatives. Mineral processing: As a flotation agent for non-ferrous metal ores.

The shelf life of our zinc sulfate powder is 24 months when stored properly. Storage conditions: Keep in a cool, dry, and well-ventilated warehouse, away from moisture, direct sunlight, and strong oxidizing agents. Packaging: 25kg or 50kg kraft bags with inner PE liners to prevent caking and moisture absorption. Avoid contact with alkaline substances to prevent chemical decomposition.