61200

Copper(II) oxide

puriss. p.a., ≥99.0% (RT), powder

• Synonym(s): Cupric oxide
• Empirical Formula (Hill Notation): CuO
• CAS Number: 1317-38-0
• Molecular Weight: 79.55
• EC Number: 215-269-1
• MDL number: MFCD00010979
• UNSPSC Code: 12352303
• PubChem Substance ID: 329759391

Properties

• grade: puriss. p.a.
• assay: ≥99.0% (RT)
• form: powder
• impurities: ≤0.002% total nitrogen (N); ≤0.02% insoluble matter in HCl; ≤0.05% total sulfur (as SO₄)
• anion traces: chloride (Cl^-): ≤50 mg/kg
• cation traces: Ca: ≤100 mg/kg; Cd: ≤10 mg/kg; Co: ≤10 mg/kg; Cr: ≤50 mg/kg; Fe: ≤500 mg/kg; K: ≤50 mg/kg; Mg: ≤100 mg/kg; Mn: ≤10 mg/kg; Na: ≤500 mg/kg; Ni: ≤50 mg/kg; Pb: ≤500 mg/kg; Zn: ≤100 mg/kg
• SMILES string: [Cu]=O
• InChI: 1S/Cu.O
• InChI key: QPLDLSVMHZLSFG-UHFFFAOYSA-N

Description

General description

Copper(II) oxide (Cupric oxide, CuO) contains copper in the +2 valence state. A refinement of its crystal structure has been described by single crystal X-ray diffraction studies.[1] CuO is useful for the fabrication of solid state gas sensors.[2] It can be synthesized from copper oxalate.[3]

Application

Copper(II) oxide may be used in the preparation of imidazole[4] and single crystals of CuO.[1]

Safety Information

• pictograms: GHS09
• signalword: Warning
• hcodes: H410
• pcodes: P273 - P391 - P501
• Hazard Classifications: Aquatic Acute 1 - Aquatic Chronic 1
• Storage Class: 13 - Non Combustible Solids
• wgk_germany: WGK 3
• flash_point_f: Not applicable
• flash_point_c: Not applicable