Copper(ii) sulfate pentahydrate
CAS 7758-99-8
EC 616-477-9
Formula Cu.H2O4S.5H2O
MW 249.68 g/mol
Salts & Minerals Agriculture & FeedWater TreatmentPharmaceuticals & HealthcareTextile, Leather & PaperMining & Metals CatalysisPreservation & BiocideHumectant & Moisturizing
Description
Copper(II) Sulfate Pentahydrate (CAS 7758-99-8) is an inorganic copper salt commonly known as blue vitriol or bluestone, supplied as CuSO4·5H2O. It carries EC number 616-477-9 and is classified under HS code 28332500. No E-code designation applies to this substance.
In water treatment, it controls algae and microbial growth by releasing cupric ions that disrupt cellular enzyme function. In agriculture, it serves as a fungicide and soil amendment, correcting copper deficiencies in crops. The textile and leather industries use it as a mordant, fixing dyes to fibres through coordination bonding with both the dye molecule and substrate.
This product is available in technical, feed, and reagent grades, in powder and granular forms. It is subject to REACH registration requirements within the EU. Procurement quantities typically range from 25 kg bags to bulk pallet formats, with Ph.Eur. and FCC grades available for pharmaceutical and food-contact applications respectively.
In water treatment, it controls algae and microbial growth by releasing cupric ions that disrupt cellular enzyme function. In agriculture, it serves as a fungicide and soil amendment, correcting copper deficiencies in crops. The textile and leather industries use it as a mordant, fixing dyes to fibres through coordination bonding with both the dye molecule and substrate.
This product is available in technical, feed, and reagent grades, in powder and granular forms. It is subject to REACH registration requirements within the EU. Procurement quantities typically range from 25 kg bags to bulk pallet formats, with Ph.Eur. and FCC grades available for pharmaceutical and food-contact applications respectively.
Physical Properties
| Melting Point | 110 °C (decomp) |
| Density | 2.286 g/cm³ @ Temp: 15.6 °C |
| Appearance | Copper sulfate is a greenish-white crystalline solid; the pentahydrate is Blue powder or granules, or ultramarine crystalline solid. |
| Color | fine blue crystals |
| Odor | blue cryst. or cryst. gran. or powd., odorless |
| Form | Solid |
| Water Solubility | 320 g/L (20 ºC) |
| Vapor Pressure | 7.3 mm Hg ( 25 °C) |
| Refractive Index | 1.537 |
| pH | 3.5-4.5 (25℃, 50mg/mL in H2O) |
Safety & Handling (Learn More)
Danger GHS05 GHS07 GHS09 GHS08
H
H290H302H314H315H317H318H319H341H361H370H372H373H400H410H411
P
P203P234P260P261P264P270P272P273P280P316P317P318P319P321P330P363P390P391P405P406P501P264+P265P301+P317P302+P352P304+P340P308+P316P332+P317P333+P317P337+P317P362+P364P301+P330+P331P302+P361+P354P305+P351+P338P305+P354+P338
Trade & Regulatory
| HS Code | 28332500 |
| UN Number | 3288 |
| ADR Class | 6.1 |
| Packing Group | III |
| Storage Class | 13 - Non Combustible Solids |
| WGK (Germany) | 2 |
Other Names
CuSO4.5H2OCuSO4·5H2Oblue vitriolBLUESTONEBLUE COPPERASTop Lucina HV-WA
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Raw Materials
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