Zinc Sulphate Heptahydrate 21%: Uses, Specifications and Packaging Guide
Zinc Sulphate Heptahydrate 21% is one of the most widely used micronutrient chemicals in agriculture and industrial applications. This guide covers its uses, key specifications, packaging options and how to source it in bulk.
Zinc Sulphate Heptahydrate (ZnSO₄·7H₂O) with 21% zinc content is one of the most commonly used micronutrient chemicals in agriculture, fertilizer manufacturing and industrial applications. It is a water-soluble white to light-coloured crystalline powder with broad application across multiple industries.
Key Properties
- •Chemical formula: ZnSO₄·7H₂O
- •Zinc content: Minimum 21% (agricultural grade)
- •Appearance: White or light coloured crystalline powder or granules
- •Solubility: Freely soluble in water
- •CAS Number: 7446-20-0
Applications
Agriculture
Zinc Sulphate Heptahydrate is applied as a soil corrective to address zinc deficiency in crops. Zinc is an essential micronutrient for plant growth, enzyme activation, protein synthesis and overall crop productivity. It is commonly used in:
- •Soil broadcasting before planting
- •Basal application mixed with fertilizers
- •Drip irrigation / fertigation systems
- •Foliar spray (at lower concentrations)
- •Micronutrient mixture formulations
Fertilizer Manufacturing
Manufacturers of complex fertilizers, micronutrient mixtures and crop nutrition blends use Zinc Sulphate Heptahydrate as a source of zinc in their formulations.
Water Treatment
Zinc compounds are used in specific water treatment applications including corrosion inhibition in cooling tower water systems.
Industrial Use
Industrial applications include galvanising processes, rubber vulcanisation, wood preservation and textile mordanting.
Key Specifications (Agricultural Grade)
| Parameter | Specification |
|---|---|
| Zinc (Zn) as ZnSO₄·7H₂O | Min 21% |
| Moisture | Max [Admin editable] |
| Water insoluble matter | Max [Admin editable] |
| Lead (Pb) | Max [Admin editable] |
| Cadmium (Cd) | Max [Admin editable] |
*Exact specification values are batch-confirmed. Request COA for confirmed analysis.*
Packaging Options
Zinc Sulphate Heptahydrate is available in:
- •25 kg HDPE bags
- •50 kg HDPE bags
- •Jumbo bags (500 kg or 1 MT)
- •As per buyer requirement for large-volume orders
How to Buy Zinc Sulphate Heptahydrate from Mangalam Acid and Chemicals
Mangalam Acid and Chemicals supplies Zinc Sulphate Heptahydrate in agricultural and industrial grade from Vapi, Gujarat. We supply to buyers across India including Gujarat, Maharashtra, Rajasthan, Madhya Pradesh, Andhra Pradesh and other states.
To place an enquiry, provide:
- •Grade required (agricultural / industrial)
- •Quantity (in kg or MT)
- •Packaging preference
- •Delivery location
COA is available on request.
Looking for Bulk Chemical Supply?
Mangalam Acid and Chemicals supplies industrial and agro chemicals from Vapi, Gujarat. Send your requirement with product, grade, quantity and delivery location.