12852

Copper(II) sulfate

puriss., meets analytical specification of Ph. Eur., BP, USP, anhydrous, 99-100.5% (based on anhydrous substance)

• Synonym(s): Cupric sulfate
• Linear Formula: CuSO₄
• CAS Number: 7758-98-7
• Molecular Weight: 159.61
• EC Number: 231-847-6
• MDL number: MFCD00010981
• UNSPSC Code: 12352302
• PubChem Substance ID: 329749899
• NACRES: NA.21

Properties

• vapor pressure: 7.3 mmHg ( 25 °C)
• grade: puriss.
• Assay: 99-100.5% (based on anhydrous substance)
• form: solid
• quality: meets analytical specification of Ph. Eur., BP, USP
• impurities: residual solvents, complies
• loss: ≤1% loss on drying, 250 °C
• pH: 3.5-4.5 (20 °C, 50 g/L)
• mp: 200 °C (dec.) (lit.)
• density: 3.603 g/mL at 25 °C (lit.)
• anion traces: chloride (Cl^-): ≤100 mg/kg
• cation traces: Ca: ≤50 mg/kg; Fe: ≤30 mg/kg; K: ≤100 mg/kg; Mg: ≤100 mg/kg; Na: ≤200 mg/kg; Ni: ≤50 mg/kg; Pb: ≤80 mg/kg
• SMILES string: [Cu++].[O-]S([O-])(=O)=O
• InChI: 1S/Cu.H2O4S/c;1-5(2,3)4/h;(H2,1,2,3,4)/q+2;/p-2
• InChI key: ARUVKPQLZAKDPS-UHFFFAOYSA-L

Description

General description

Copper(II) sulfate acts as a redox catalyst along with potassium permanganate for the oxidation of alcohols. On heating above 560°C, it decomposes to CuO.5
It can find applications in agriculture as a nutrient for plants. It can also serve as a precursor in the production of foliar bactericides and fungicides.

Application

Copper(II) sulfate may be employed for the following studies:

• As a catalyst for the acetylation of alcohols and phenols under solvent-free conditions.
• To compose the electrolyte for the electrodeposition of Cu-Zn-Sn precursors, required for the preparation of Cu₂ZnSnS₄ (CZTS) thin films.
• As a Lewis acid catalyst for the dehydration of alcohols.5

Safety Information

• Pictograms: GHS07,GHS09
• Signal Word: Warning
• Hazard Statements: H302,H315,H319,H410
• Precautionary Statements: P264 - P273 - P280 - P301 + P312 - P302 + P352 - P305 + P351 + P338
• Hazard Classifications: Acute Tox. 4 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - Eye Irrit. 2 - Skin Irrit. 2
• Storage Class Code: 11 - Combustible Solids
• WGK: WGK 3
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable