Zinc sulfate heptahydrate

Zinc sulfate heptahydrate (CAS 7446-20-0), commonly referred to as white vitriol, is an inorganic zinc salt used across agriculture, industrial processing, and nutrition applications. It delivers a soluble, bioavailable source of zinc for use in fertilizers and feed supplements. In agriculture, it corrects zinc deficiency in crops when applied as a foliar spray or soil amendment, directly improving yield quality in zinc-sensitive crops such as cereals and legumes. This ensures optimal growth and health for various plant species.

Animal feed producers incorporate it as a zinc source in premixes and mineral supplements to meet livestock nutritional requirements. In water treatment, it functions as a coagulation aid and algaecide for controlling biological growth in reservoirs. Textile and leather processors use it as a mordant and preservative in dyeing and tanning operations. Consistent zinc concentration is critical to process control in these industrial manufacturing environments to ensure high-quality finished goods.

Zinc sulfate heptahydrate is supplied as white crystalline powder or granules, with granulated forms preferred for fertilizer blending. Powder grades are typically used in liquid formulation and other specialized chemical processes. Standard grades include technical, feed-grade, USP, and BP, with feed and pharmaceutical grades requiring documented purity and heavy metal limits. These certifications ensure the material meets strict safety and quality benchmarks.

Bulk supply is available in bags or big bags, with solution concentrations also offered for certain industrial applications. This flexibility in packaging allows for efficient logistics and handling across different sectors and global markets.