Zinc sulphate monohydrate (ZnSO₄·H₂O) is one of India’s most widely produced inorganic specialty chemicals, valued across agriculture, animal nutrition, pharmaceuticals, and industrial processing. Also known historically as “white vitriol,” this colourless crystalline compound offers a concentrated, stable source of zinc that dissolves readily in water. With India’s strong chemical manufacturing base — especially in Gujarat, Maharashtra, and Telangana — the country has become a major global hub for producing and exporting this compound.What Is Zinc Sulphate Monohydrate?Zinc sulphate monohydrate is an inorganic zinc salt containing one water molecule per formula unit, giving it a higher concentration of elemental zinc per kilogram compared to the heptahydrate form. It typically appears as odorless white crystals or granules and is prized for its high solubility and stability during storage and transport. Because of its purity and consistent zinc content, manufacturers supply it in technical, agricultural, and pharmaceutical (IP/BP/USP/FCC) grades depending on the end application.Key ApplicationsIndia’s zinc sulphate monohydrate producers serve a diverse set of industries:Agriculture and fertilizers – Used as a soil and foliar micronutrient to correct zinc deficiency in crops, and as a raw material in blended fertilizer formulations.Animal feed and poultry nutrition – Added to livestock, poultry, and fish feed as a trace-mineral supplement.Pharmaceuticals – Used in zinc supplements and as an astringent or emetic agent in certain medicinal formulations.Industrial processes – Applied as a coagulant in rayon manufacturing, a precursor to the pigment lithopone, an electrolyte in zinc electroplating, and a mordant in textile dyeing.Water treatment and leather preservation – Used in various industrial treatment processes.Notable Manufacturers in IndiaIndia hosts a wide network of established zinc sulphate monohydrate producers, many with decades of experience and export operations spanning Asia, Europe, the Middle East, and the Americas. Some of the notable names include:Indian Platinum Pvt. Ltd. – Based in Dabhasa, Padra (Dist. Vadodara), Gujarat, with 15 years in the industry.Shree Industriel Adsorbents Pvt. Ltd. – Located in Paddhari, Dist. Rajkot, Gujarat.Vinipul Inorganics / Vinipul Chemicals Pvt. Ltd. – A Mumbai-based manufacturer, supplier, and exporter offering multiple concentration grades (33% and 36%) for chemical, food, textile, rubber, and colouring industries.Parshva Chemicals – A Gujarat-based manufacturer and exporter supplying high-purity crystal formulations (minimum 97.5% purity) for feed, micronutrient, paint, and medicinal uses.Shreeji Industries – A GMP-certified API manufacturer supplying pharmaceutical-grade (IP/BP/USP/FCC) zinc sulphate monohydrate to global markets including the USA, UK, Europe, Brazil, and Vietnam.Veeransh Chemicals – Supplies across major Indian industrial hubs (Gujarat, Maharashtra, Rajasthan, Tamil Nadu, and more) as well as international markets in Asia, Europe, North America, and the Middle East.Vishnupriya Chemicals Pvt. Ltd. – An ISO 9001:2015-certified manufacturer based in Hyderabad with over two decades of experience, offering technical and pure grades in powder and granule form.Shanti Agro Products – Produces fertilizer-grade zinc sulphate monohydrate supplied to major agrochemical companies for use directly by farmers as well as in micronutrient, feed, and cattle feed manufacturing.MSNR Enterprises – Based in Vijayawada, Andhra Pradesh, a manufacturer of Zinc Sulphate Monohydrate 33% grade, serving the agricultural and industrial markets in the region.Choosing a ManufacturerWhen evaluating zinc sulphate monohydrate suppliers, buyers typically consider:Grade and purity – Technical, agricultural, or pharmaceutical-grade material, with purity levels (often 97.5% or higher) suited to the intended use.Certifications – ISO, GMP, or pharmacopoeia compliance (IP/BP/USP/FCC) for regulated industries.Packaging and MOQ – Standard packaging is usually 25 kg or 50 kg HDPE bags, with minimum order quantities varying by supplier.Export capability – Established logistics and experience shipping to target regions, particularly important for international buyers.Track record – Years in operation and existing client base, such as supply relationships with major fertilizer and agrochemical companies.ConclusionIndia’s zinc sulphate monohydrate industry is well established, with manufacturers spread across key chemical clusters like Gujarat, Maharashtra, and Telangana. Whether the requirement is agricultural-grade material for fertilizer blending or pharmaceutical-grade API for supplements, buyers have a broad range of certified, experienced producers to choose from — many with strong export infrastructure serving markets worldwide.