Granular zinc sulphate monohydrate is the granulated form of ZnSO4.H2O, processed into firm, uniform granules containing 33% or 35.5% zinc. Its low-dust, free-flowing granules spread evenly through fertiliser spreaders and blend cleanly with urea, DAP and MOP without separating.
The granular grade is the form growers and blenders choose for dry basal application and bulk blending, where an even spread and low dust matter most. It resists caking in storage and handles well over long transit. The 33% and 35.5% assay tables are published below.
| Property | Specification |
|---|---|
| Appearance | White Granular |
| Granular Size | 2.0mm - 4.00mm. |
| Zinc (Zn) Content | 33.00 % Min. |
| Sulphur (S) Content | 15.0 % Min. |
| Iron (Fe) Content | 1.00 % Max. |
| pH (5% aqueous solution) | Above 4.0 |
| Solubility | Freely soluble in water |
| Moisture Content | 1.00 % Max. |
| Insoluble Matter | 1.00 % Max. |
| Property | Specification |
|---|---|
| Appearance | White Granular |
| Granular Size | 2.0mm - 4.00mm. |
| Zinc (Zn) Content | 35.50 % Min. |
| Sulphur (S)Content | 17.0 % Min. |
| Cadmium (Cd) Content | To customer specification |
| Lead (Pb) Content | To customer specification |
| Arsenic (As ) Content | To customer specification |
| Mercury (Hg ) Content | To customer specification |
| pH (5% aqueous solution) | Above 4.0 |
| Solubility | Freely soluble in water |
| Insoluble Matter | 1.00 % Max. |
Designed for dry fertilizer blending units, ag retailers, and mechanical spreading across North America, India, and global markets. Whether specified as granular zinc sulfate monohydrate or granular zinc sulphate, our 33% and 35.5% grades deliver uniform physical consistency, high granule crush strength, and ultra-low moisture.
Engineered for seamless compatibility with commercial dry blend components including Urea, DAP, MAP, and MOP. The firm, uniform granules eliminate segregation during bulk handling, mixing, and transport, ensuring consistent nutrient distribution in every bag and field pass.
Features a tightly controlled granule size specification of 2.0mm to 4.00mm. This uniform particle size distribution matches standard commercial spreaders (spinner spreaders and pneumatic boom spreaders), preventing drift and ensuring an accurate pattern across broadacre crops like US corn, soybean, wheat, and Indian paddy.
Manufactured with a guaranteed maximum moisture content of 1.00% Max (approx 1.00%). Low moisture guarantees free-flowing flowability during long-distance ocean transit and extended warehouse storage in humid conditions, resisting caking, clumping, or hopper bridging.
Chakradhar Chemicals has manufactured Granular Zinc Sulphate Monohydrate (33% & 35.5%) in India since 1990 and exports to buyers across seven regions, including the United States.
30,000 MTPA installed capacity at our Muzaffarnagar plant, Uttar Pradesh, India. Bulk supply and repeat contract volumes are supported.



We currently export to the United States and supply buyers across Asia, Africa, Europe, North America, South America, Latin America, Middle East.