Zinc sulphate, historically known as White Vitriol, is one of the most widely used inorganic zinc compounds and is primarily manufactured synthetically despite occurring naturally in limited quantities as the mineral Glosarite. It is commonly available as a free-flowing white powder in monohydrate and heptahydrate forms, with zinc sulphate monohydrate and zinc sulphate heptahydrate representing the principal commercial grades. The compound is highly soluble in water, non-flammable, non-oxidizing, and valued for its broad industrial utility.
Zinc sulphate has extensive applications across agriculture, chemical processing, pharmaceuticals, healthcare, textiles, paper, paints, pigments, leather treatment, water treatment, electroplating, and rayon manufacturing. In agriculture, it plays a critical role in correcting zinc-deficient soils and improving crop productivity, while in animal nutrition and healthcare it serves as an important trace element and nutritional supplement. Historical studies, including work conducted in 1978 by researchers at Punjab Agricultural University, highlighted significant zinc deficiencies in Indian soils and demonstrated positive crop responses to zinc sulphate application, particularly for rice, potato, wheat, groundnut, and other cereals.
Commercial production generally involves reacting zinc ash or zinc dross with sulphuric acid, followed by filtration, concentration, crystallization, centrifugation, and dehydration to obtain the desired hydrate. Higher-purity grades are produced using zinc metal as the raw material for applications requiring superior quality. The report also highlights growing demand driven by fertilizer consumption, healthcare requirements, water treatment, and industrial applications. Among product types, zinc sulphate monohydrate is widely used in fertilizers, while zinc sulphate heptahydrate remains important for animal feed, agriculture, laboratory, leather, and electroplating applications.
| Item | Value |
|---|---|
| Plant capacity | 25 Ton/day |
| Land & Building (4000 Sq.Mtr) | Rs. 2.67 Cr |
| Plant & Machinery | Rs.7.73 Cr |
| Working Capital for 1 Month | Rs. 1.92 Cr |
| Total Capital Investment | Rs. 14.15 Cr |
| Rate of Return | 37% |
| Break Even Point | 58% |
Zinc sulphate is primarily used as a source of zinc for agriculture and various industrial applications.
It is widely used in fertilizers to correct zinc deficiency in crops, animal feed as a trace nutrient, pharmaceuticals and healthcare supplements, textile processing, rayon manufacturing, electroplating, pigments, paper production, leather preservation, and water treatment. Its high water solubility and versatility make it one of the most important commercial zinc compounds.
Zinc sulphate is commonly produced by reacting zinc-containing raw materials with sulphuric acid.
Commercial production generally uses zinc ash or zinc dross, followed by filtration, concentration, crystallization, centrifugation, and dehydration to obtain the required hydrate form. Higher-purity grades are typically manufactured using zinc metal as the starting material for applications that require superior product quality.
The primary difference is the amount of water of crystallization present in each compound.
Zinc sulphate monohydrate contains one water molecule, while zinc sulphate heptahydrate contains seven. Both are commercially important, but they are selected based on application requirements such as fertilizer manufacturing, animal nutrition, laboratory use, industrial processing, or pharmaceutical formulations.
Zinc sulphate helps correct zinc deficiency in soils and improves crop productivity.
The report highlights its use in fertilizers and agricultural sprays for crops including rice, wheat, potato, groundnut, and cereals. Adequate zinc nutrition supports healthy plant growth and contributes to improved crop performance where soil zinc deficiency exists.
Zinc sulphate is consumed by multiple industrial sectors.
Major end users include agriculture, healthcare, pharmaceuticals, textiles, rayon manufacturing, chemical processing, paper production, electroplating, leather treatment, pigments, water treatment, and animal nutrition. Demand is supported by its effectiveness as a zinc source and its broad range of industrial applications.
Demand is expected to grow because of expanding agricultural, healthcare, and industrial applications.
The report associates future demand with increasing fertilizer use to address zinc-deficient soils, greater nutritional and pharmaceutical requirements, water treatment applications, and continued use in chemical and manufacturing industries where zinc sulphate serves as an essential raw material.
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