Copper(II) sulfate
General Product Information
| Article | Copper(II) sulfate |
| Synonyms | Copper Sulphate pentahydrate, Cupric sulphate, Blue vitriol, Bluestone |
| CAS No. | 7758-99-8 |
| EEG No. | 029-004-00-0 |
| EINECS No. | 231-847-6 |
| IMO | Class 9 |
| Tariff Code | 28332500 |
| UN No. | 3077 |
| VLG/ADR | Class 9, Packing Group III |
Description
Copper sulfate is an inorganic salt with a characteristic bright blue Color. It is used in agriculture, industry, Water Treatment and laboratories. In solid form, the product is stable, highly soluble in water and widely applicable due to its fungicide, algicide and oxidative properties.
Characteristics
- Odor: Odorless.
- Hygroscopic: Yes.
- Color: Blue.
- Grade: Technical.
- Solubility: Highly soluble in water.
- Shape: Crystalline powder.
Physical & Chemical Properties
| Chemical Structure | CuSO₄-5H₂O |
| Molar Weight | 249.68 g/mol |
| Melting Point | 110 °C (decomposes) |
| Boiling Point | – |
| Density | Approx. 2.28 g/cm³. |
| Refractive Index | – |
| pH. | Approx. 4 (on 1% solution). |
Applications
Copper sulfate is applied in various ways, for instance:
1. Agriculture
As a fungicide (e.g. Bordeaux porridge), fertilizer additive and algicide.
2. Metal Industry
For electrolytic copper plating and refining, engraving and metal treatment.
3. Textile Industry.
As a color fixative in paint baths.
4. Water Treatment
To control algae in ponds, reservoirs and cooling water systems.
5. Timber Trade
As a component of wood preservatives against fungi and insects.
Interessing Links
- CAS Common Chemistry – Copper sulfate pentahydrate
- European Chemicals Agency (ECHA) – For chemical information and regulations.
- PubChem – Cupric Sulfate – Chemical information by the National Library of Medicine of the National Center for Biotechnology Information (NIH-NCBI).
- Wikipedia – Copper(II) sulfate