Copper Sulphate Pentahydrate CAS 7758-99-8
Copper Sulphate Pentahydrate (CAS 7758-99-8, formula CuSO4.5H2O) is an industrial chemical with a molecular weight of about 249.69 g/mol. Its harmonised GHS classification carries the signal word Danger.
Identifiers
- Name
- Copper Sulphate Pentahydrate
- CAS number
- 7758-99-8
- CLP index number
- 029-023-00-4
- EC number
- 913-732-9
- Molecular formula
- CuSO4.5H2O
- Molecular weight
- 249.69 g/mol
- Also known as
- Copper(II) sulfate pentahydrate, Blue vitriol, CuSO4.5H2O
GHS classification
Harmonised classification under the CLP Regulation (Annex VI), index number 029-023-00-4. Signal word: Danger.
| Hazard class | Code | Statement |
|---|---|---|
| Acute toxicity, oral | H302 | Harmful if swallowed. |
| Serious eye damage/eye irritation | H318 | Causes serious eye damage. |
| Hazardous to the aquatic environment, acute hazard | H400 | Very toxic to aquatic life. |
| Hazardous to the aquatic environment, long-term hazard | H410 | Very toxic to aquatic life with long lasting effects. |
Pictograms
- GHS05 Corrosion
- GHS07 Exclamation mark
- GHS09 Environment
Suppliers may classify additional hazards from their own data, so a supplier's Safety Data Sheet can list more than the harmonised entry.
Source: Regulation (EC) No 1272/2008, Annex VI, retrieved 2026-10-10. Confirm against the current consolidated text and your supplier's SDS before relying on it.
Creating a Safety Data Sheet for a product containing Copper Sulphate Pentahydrate
If Copper Sulphate Pentahydrate is an ingredient, record its CAS number and concentration in Section 3 and use it in the mixture classification that drives Section 2 and the label.
How to write a Safety Data Sheet · GHS mixture classification
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Start free trialFrequently asked questions
- What is the CAS number of Copper Sulphate Pentahydrate?
- The CAS Registry Number of Copper Sulphate Pentahydrate is 7758-99-8.
- What is the chemical formula of Copper Sulphate Pentahydrate?
- Copper Sulphate Pentahydrate has the formula CuSO4.5H2O and a molecular weight of about 249.69 g/mol.
- What are the GHS hazards of Copper Sulphate Pentahydrate?
- Copper Sulphate Pentahydrate carries the signal word Danger. Its harmonised hazard statements are H302, H318, H400, H410: Harmful if swallowed.; Causes serious eye damage.; Very toxic to aquatic life.; Very toxic to aquatic life with long lasting effects..
- Which GHS pictograms apply to Copper Sulphate Pentahydrate?
- GHS05 (Corrosion), GHS07 (Exclamation mark), GHS09 (Environment).
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Information is provided for general reference and is not a substitute for a supplier's Safety Data Sheet or professional advice. See our disclaimer.