The Standard Hydrated Form of Copper Sulphate
Copper Sulphate Pentahydrate is copper sulphate in its most common, stable form — a bright blue crystalline solid formed when five water molecules bond to each copper sulphate molecule (CuSO₄·5H₂O). It is the base material from which our Crystal and Powder products, and all six of our application grades, are produced.
Pentahydrate is highly water soluble, non-flammable, and contains approximately 25% elemental copper by weight — the figure most customers use to calculate dosage, whether for a fertilizer blend, a plating bath, or a feed premix.
Typical Specification
| Parameter | Typical Value |
|---|---|
| Chemical Formula | CuSO₄·5H₂O |
| Appearance | Blue crystalline solid |
| Copper Content | ~25% (24–25.5%) |
| Purity | 98–99% |
| Molecular Weight | 249.68 g/mol |
| Solubility in Water | ~320 g/L at 20°C |
| Moisture | ≤ 0.5% |
| pH (1% solution) | 3.5–4.5 |
Key Applications
Packaging
Supplied in 25 kg and 50 kg HDPE/PP woven bags with inner polyethylene liners, as well as 1 kg and 5 kg retail packs and 500–1000 kg jumbo bags for bulk orders. Customized labeling and private-label packaging available on request.