Chemical Identity
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Chemical Formula: CuO (Copper(II) Oxide)
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CAS Number: 1317-38-0
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Synonyms: Black Copper Oxide, Cupric Oxide, Copper Oxide Black
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Appearance: Black to brownish-black fine powder
Key Features
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High-purity black copper oxide powder used across industry and ceramics.
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Stable under normal storage conditions and insoluble in water.
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Suitable for pigment, catalyst, metallurgical, and technical applications.
Technical Specifications
| Property | Typical Value |
|---|---|
| Composition (CuO) | ≥ 98% (typical technical grade) |
| Copper Content | ~77–79% |
| Form | Fine black powder |
| Solubility | Insoluble in water; soluble in mineral acids |
| Molecular Weight | 79.55 g/mol |
| Density | ~6.3–6.9 g/cm³ |
| Melting/Decomposition Point | ~1326 °C |
| pH | ~7 (neutral slurry) |
Features & Benefits
✔ Versatile Industrial Uses – Used in ceramics, glass, and enamel colorants to produce rich blacks, greens, and other hues.
✔ Catalyst & Chemical Reagent – Employed as a catalyst in organic synthesis and as a precursor in copper chemical production.
✔ Metallurgical Flux & Abrasive – Helps in fluxing operations and polishing optical glass.
✔ Electronics & Semiconductor Research – High-purity grades are used in advanced materials and catalysis applications.