Copper(II) sulfate pentahydrate
Copper(II) sulfate pentahydrate (CAS 7758-99-8), molecular formula CuSO4 · 5H2O, is a high-purity chemical supplied by Tech Serve Solutions for catalysis & inorganic applications, to pharmacopoeia specification (USP, BP, EP). Every batch is tested and ships with a Certificate of Analysis; MSDS and technical data sheets are available on request. Tech Serve Solutions has supplied laboratory reagents, fine chemicals and pharmaceutical intermediates worldwide since 1998.
- IUPAC
- Blue Vitriol,Cupric sulfate pentahydrate,Sulfuric acid, copper(II) salt (1:1) pentahydrate

| Molecular weight | 249.69 |
|---|---|
| Linear formula | CuSO4 · 5H2O |
| Assay | ≥99.0% |
| Grade | ACS reagent |
| Vapour pressure | 7.3 mmHg (25 °C) |
| Loss on drying | 35-36.5% loss on drying, 250 °C |
| Impurities tested | organic volatile impurities, in accordance (GC)in accordance |
| Melting point | 110 °C (dec.)(lit.) |
| Suitability | passes test for appearance of solution |


Hazard statements
- H302Harmful if swallowed
- H315Causes skin irritation
- H319Causes serious eye irritation
- H410Very toxic to aquatic life with long-lasting effects
Precautionary statements
- P273Avoid release to the environment
- P305IF IN EYES
- P501Dispose of contents and container per local regulations
| Protective equipment | dust mask type N95 (US), Eyeshields, Faceshields, Gloves |
|---|---|
| Transport (UN / ADR) | UN 3077 9 / PGIII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xn,N |
| Risk statements (R) | 22-36/38-50/53 |
| Safety statements (S) | 22-60-61 |
| Cation traces | As: ≤5 mg/kgCa: ≤50 mg/kgFe: ≤30 mg/kgK: ≤100 mg/kgMg: ≤50 mg/kgNa: ≤200 mg/kgNi: ≤50 mg/kgPb: ≤50 mg/kg |
| Anion traces | chloride (Cl-): ≤100 mg/kg |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
| Quality Level | PREMIUM |
|---|
Documentation
Supplied to USP, BP and EP standards. Every batch ships with a Certificate of Analysis (assay, identity, purity); MSDS and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is Copper(II) sulfate pentahydrate?
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Copper(II) sulfate pentahydrate (CAS 7758-99-8), molecular formula CuSO4 · 5H2O, is a high-purity chemical supplied by Tech Serve Solutions for catalysis & inorganic applications, to USP, BP and EP standards.
What grades of Copper(II) sulfate pentahydrate does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Copper(II) sulfate pentahydrate in USP, BP, EP and reagent/AR grades. Custom specifications for nutraceutical or specialty pharmaceutical applications are available — contact our technical sales team.
What is the CAS number and molecular formula of Copper(II) sulfate pentahydrate?
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Copper(II) sulfate pentahydrate has CAS number 7758-99-8 and molecular formula CuSO4 · 5H2O. Full specifications appear in the table above and in the Certificate of Analysis.
What is the typical minimum order quantity and lead time for Copper(II) sulfate pentahydrate?
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Sample quantities are available for technical evaluation; bulk MOQ depends on grade and packaging. In-stock material typically ships in 7–10 working days; custom-spec orders take 3–4 weeks. Tech Serve Solutions ships worldwide with full export documentation.
Do you provide a Certificate of Analysis (CoA) with each shipment?
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Yes. Every batch of Copper(II) sulfate pentahydrate ships with a Certificate of Analysis covering assay, identity and purity tests, plus pharmacopoeia conformance where applicable. MSDS and TDS documents are available on request before order placement.
How should Copper(II) sulfate pentahydrate be stored?
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Store Copper(II) sulfate pentahydrate in its original sealed container in a cool, dry place away from direct sunlight and incompatible materials, in line with the storage guidance on the Safety Data Sheet. Reseal between dispensings.
What is Copper(II) sulfate pentahydrate used for?
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Copper(II) sulfate pentahydrate is used in catalysis & inorganic applications across pharmaceutical, research and industrial settings. Our technical team can advise on suitability for your specific process.
How do I request a quote for Copper(II) sulfate pentahydrate?
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Request a quote with your required grade, quantity and destination via https://www.techservesolutions.in/contact or email info@techservesolutions.in. We respond with specifications, a Certificate of Analysis and pricing.
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