About this product
Copper Sulphate (Pentahydrate), CAS 7758-99-8 — blue crystals or granules, also sold as blue vitriol or bluestone and spelled copper sulfate in US usage. Buyers specify it as a freely water-soluble copper source. The manufacturer's published technical / feed grade specification gives 98.0% mass min CuSO₄·5H₂O and 24.5% mass min copper as Cu, with water-insoluble matter 0.2% max, free acid 0.2% max as H₂SO₄, iron 0.10% max, lead 20 ppm max and arsenic 10 ppm max. We source from Viswaat Chemicals Ltd., Maharashtra, an ISO 9001 certified copper salts manufacturer, and stock 25 kg HDPE bags and 50 kg woven sacks at our Redhills, Chennai warehouse, with dispatch across South India.
Applications & Uses
Safety & Technical Documents
MSDS / SDS
TDS / COA
Certificate of Analysis · with every supply, on request
Need another sheet? Browse the full SDS & TDS library — safety and technical data sheets for every product we stock.
Product DataTechnical Specifications
Physical Properties
- Appearance
- Blue crystalline granules or powder (pentahydrate); white if anhydrous
- Purity
- ≥ 98% CuSO₄·5H₂O
- Solubility
- Freely soluble in water (203 g/L at 20°C); slightly soluble in ethanol
Supply & Packaging
- Packaging
- 25 kg HDPE bag50 kg woven sack
- Grades Available
- TechnicalAgriculturalIndustrial
- Lead Time
- Ex-stock to 5 working days
- Origin
- Imported
Compliance & Storage
- HS Code
- 2833.25.00
- UN Number
- 3077
- Hazard Class
- Class 9 — Environmentally hazardous substance, solid (Packing Group III)
- Storage
- Cool, dry area. Keep away from reactive metals, reducing agents, and alkalis.
- Shelf Life
- 36 months from manufacture
These specs are indicative. Request a Certificate of Analysis (COA) for batch-specific values.
Source Manufacturers
Sourced directly from verified manufacturers for consistent quality and traceability.
Supplied across South IndiaCoimbatoreMaduraiHosurBangaloreHyderabadVisakhapatnamKochi
Frequently Asked Questions
What is the CAS number and HSN code for copper sulphate?
Copper Sulphate (Pentahydrate) is CAS 7758-99-8, HSN 2833 25 00, chemical formula CuSO₄·5H₂O. It is also sold as blue vitriol or bluestone, and spelled copper sulfate in US usage.
What grade of copper sulphate do you supply?
Our data sheet covers Technical / Feed Grade at 98% min, against the published specification of Viswaat Chemicals Ltd., Maharashtra, an ISO 9001 certified copper salts manufacturer. Our catalogue also lists Technical, Agricultural and Industrial grades. Tell us the grade you need and we will confirm it against the manufacturer's sheet before quoting.
What is the difference between copper sulphate pentahydrate and anhydrous copper sulphate?
The pentahydrate is CuSO₄·5H₂O and appears as blue crystalline granules or powder. The anhydrous form is CuSO₄ and is white. We supply the pentahydrate, at 98.0% mass min purity and 24.5% mass min copper as Cu.
What is copper sulphate used for, and how soluble is it?
Buyers use it as a water-soluble copper source — in agriculture and crop protection, as an algaecide in water treatment, in electroplating and metal finishing, as a mining flotation reagent, as a feed-grade copper supplement, and as a laboratory reagent. It is freely soluble in water at 203 g/L at 20°C, slightly soluble in ethanol, and carries 24.5% mass min copper as Cu. Tell us the grade — technical, feed, agricultural or industrial — when you enquire.
Do you supply copper sulphate in Chennai, and in what packaging?
Yes. We stock it in 25 kg HDPE bags and 50 kg woven sacks at our Redhills, Chennai warehouse, with dispatch across South India and a lead time of ex-stock to 5 working days. Order sizes depend on packaging and current stock. Call or WhatsApp +91 86087 80096 for a quote.
How should copper sulphate be stored, and what is its UN number and shelf life?
Store it in a cool, dry area away from reactive metals, reducing agents and alkalis, and away from foodstuffs and feed. Shelf life is 36 months from manufacture. It ships as UN 3077, Class 9 — environmentally hazardous substance, solid (Packing Group III). It is harmful if swallowed, irritating to skin and eyes, and very toxic to aquatic life, so release to drains and waterways must be avoided. The full TDS and MSDS PDFs are on this product page.
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Product Details
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