Copper Sulphate
Blue Vitriol, Cupric Sulphate, Bluestone, CuSO4.
- CAS
- 7758-99-8
- EC
- 231-847-6
- Sectors
- Agriculture, Water & Wastewater Treatment, Mining & Metals
Copper Sulphate (CAS 7758-99-8), also known as blue vitriol, is an inorganic salt that appears as fine blue crystals with a high copper content, used as an agricultural micronutrient and fungicide, a water treatment algicide, and a flotation activator in mining. It serves as a vital micronutrient in agriculture and a highly effective algicide for large-scale water treatment and industrial cooling systems.
The product is valued for its high copper content and rapid solubility in water, allowing for easy application in fertigation and chemical processing. In the mining sector, it acts as a critical flotation activator for the separation of zinc and gold ores.
High purity grades are also utilized in animal feed as a growth promoter and in wood preservation to prevent fungal decay. Its antifungal properties make it a staple in the formulation of Bordeaux mixtures for broad-spectrum crop protection.
Typical Properties
| Molecular formula | Cu.H2O4S.5H2O |
|---|---|
| Molecular weight | 249.68 g/mol |
| Form | Solid |
| Color | fine blue crystals |
| Odor | blue cryst. or cryst. gran. or powd., odorless |
| Melting point | 110 °C (decomp) |
| Density | 2.286 g/cm³ @ Temp: 15.6 °C |
| Water solubility | 320 g/L (20 °C) |
| pH | 3.5-4.5 (25°C, 50mg/mL in H2O) |
| GHS signal word | Danger · Corrosive, Irritant / harmful, Health hazard, Environmental hazard |
| HS code | 28332500 |
| Grades available | Technical Grade |
Typical literature values for identification; lot-specific results are stated on the certificate of analysis (COA) and the safety data sheet (SDS) that accompany every delivery.
Copper Sulphate
Applications
- Agriculture & Horticulture: Applied as a fungicide and soil additive to correct copper deficiencies and prevent diseases in vineyards and orchards.
- Mineral Flotation: Used in the mining industry as a depressant or activator to improve the recovery rates of valuable metal concentrates.
- Water Purification: Effective at controlling algae growth in reservoirs, swimming pools, and industrial ponds to maintain water clarity and hygiene.
Safety & Risks
Classified as Harmful if Swallowed and a Serious Eye Irritant. It is Very Toxic to Aquatic Life; ensure strict containment and wear chemical-resistant gloves and eye protection.
Packaging
25kg PE/PP bags, 1000kg Big Bags (FIBC).