
Copper Sulfate (CAS 7758-98-7), ≥99.0%, anhydrous and pentahydrate forms, supplied wholesale by Zyntex. For copper fungicides, feed premixes, acid copper electroplating and mineral flotation. CoA and SDS with every lot.
Anhydrous copper(II) sulfate (CuSO4) is a grayish-white powder. When it absorbs water, it turns into the familiar bright blue pentahydrate (CAS 7758-99-8). Laboratories use this color change to detect water. Both forms dissolve well in water.
In agriculture, it is the active ingredient of Bordeaux mixture and other copper fungicides used against fungal diseases in vineyards and orchards. Feed producers add it to premixes as a trace mineral source of copper. Mining companies use it as an activator in the flotation of zinc and other sulfide ores.
In metal finishing, copper sulfate supplies copper ions for acid copper electroplating and electrorefining. It also serves as the starting material for other copper compounds. For related copper and zinc salts, see Copper(II) chloride 2-hydrate, Copper(II) acetate 1-hydrate and Zinc sulfate.
Main application areas:
🍇 Agriculture
Active ingredient in Bordeaux mixture and copper fungicides.
🐄 Animal Feed
Trace mineral source of copper in premixes.
⚡ Electroplating
Copper source for acid copper plating and electrorefining.
⛏️ Mining
Flotation activator for zinc and sulfide ores.
| Parameter | Standard Value |
|---|---|
| Product Name | Copper Sulfate |
| CAS Number | 7758-98-7 (anhydrous) |
| EC Number | 231-847-6 |
| Molecular Formula / Weight | CuSO4 / 159.61 g/mol |
| Assay (Purity) | ≥ 99.0% |
| Documents | CoA and SDS with every lot |
⚠️ Safety & Handling: Harmful if swallowed, causes skin and serious eye irritation, and is very toxic to aquatic life with long-lasting effects. Wear gloves, goggles and dust protection, and prevent release to drains and waterways. Store in tightly closed containers in a dry place, away from metals such as iron and aluminum. Always consult the Safety Data Sheet (SDS) for full classification and handling instructions.
Do you supply copper sulfate pentahydrate?
Yes. Besides the anhydrous form listed here, the blue pentahydrate (CAS 7758-99-8) is available. Please specify the form when requesting a quote.
Is copper sulfate allowed in organic farming?
Copper compounds are permitted in organic farming in the EU with limits on total copper per hectare. Product registration rules depend on your country.
How can I get a price and documents?
Prices depend on quantity, packaging and destination. Contact us with your required volume to receive a quotation together with the CoA and SDS.