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Copper oxide (cupric oxide, CuO) is a black fine inorganic oxide powder. It does not dissolve in water, but can dissolve in mineral acids to generate corresponding copper salts.
This material serves as colorant for ceramics, enamel and glass glazes. It can act as catalyst or desulfurizer in chemical and petrochemical industries. Besides, it is the key starting material for producing many other copper‑based compounds, and also applied in analytical chemistry and new‑material preparation. We provide industrial‑grade and catalyst‑grade copper oxide.
Order(MOQ) :
100kgsProduct Origin :
ChinaColor :
BlackShipping Port :
Shanghai, ChinaLead Time :
2-3 weeksWeight :
25kgCas No. :
1317‑38‑0Molecular Formula :
CuOAppearance :
Black fine powderAssay :
≥98.0%Application :
Ceramic & glass industry , Catalysis & petrochemical field , Chemical synthesis , Analytical chemistry
Our Copper Oxide (Cupric Oxide) is produced via advanced calcination and milling technology, featuring high chemical purity, fine uniform particle size, low impurity content and good dispersibility. This black inorganic oxide serves as an essential raw material for ceramic‑glass colouring, organic‑reaction catalysis, desulfurisation processes and preparation of various copper‑based compounds. As a trusted inorganic‑chemical exporter, Leafchem provides reliable large‑volume supply, full‑range quality testing and complete COA certificates for global industrial clients and research laboratories.
Application Fields
Technical Specifications
| Item | Specification |
|---|---|
| Chemical Name | Copper Oxide / Cupric Oxide |
| CAS No. | 1317‑38‑0 |
| EINECS No. | 215‑269‑1 |
| Molecular Formula | CuO |
| Molecular Weight | 79.55 |
| Appearance | Black fine powder |
| Assay (CuO) | ≥98.0% |
| HCL Insolubles | ≤0.20% |
| Water Solubles | ≤0.10% |
| Chloride (Cl⁻) | ≤0.20% |
| Sulphate (SO₄²⁻) | ≤0.20% |
| Mesh Size | 300 mesh |
| Solubility | Insoluble in water; soluble in mineral acids and ammonium salt solutions |
| Density | 6.3‑6.49 g/cm³ (25℃) |
| Available Grade | Industrial Grade / Catalyst Grade |
| Typical Analysis | Assay 98.38%, HCL Insolubles 0.13%, Water Solubles 0.06%, Cl⁻ 0.11%, SO₄²⁻ 0.14% (per COA Batch No. 20251005) |
FAQ ：Cobalt oxide
Q1: Which grades of copper oxide do you supply?
A1: We offer industrial grade and catalyst‑grade copper oxide. Catalyst grade has stricter impurity limits for catalytic‑reaction scenarios; general industrial grade fits ceramic colouring and conventional chemical synthesis. Custom‑tailored grades are negotiable.
Q2: Can particle size of CuO powder be customised?
A2: Yes. Our standard product is 300 mesh fine powder. We can adjust fineness according to your technical indexes to meet requirements for ceramics, catalysts or fine‑chemical synthesis.
Q3: What guarantees the quality stability of your copper oxide?
A3: Our copper oxide assays ≥98.0% with strict control over HCL insolubles, water solubles, chloride and sulphate impurities. Calcination and grinding workflows are standardised. Each shipment is accompanied by a COA test report to maintain consistent batch performance.
Q4: What is MOQ and supply capability?
A4: The minimum order quantity (MOQ) is 100 kg. We accept sample orders for lab trials alongside mass‑volume industrial purchases. Stable production capacity supports repeated long‑term export contracts.
Q5: How is copper oxide packed and delivered?
A5: Standard packaging: 25 kg woven bag with inner PE lining for moisture protection. Custom drum packing is available. Shipping modes include sea freight, air freight and international express as requested.
Q6: What documents can you provide for import customs clearance?
A6: We can issue full set of documents including COA (Certificate of Analysis), MSDS safety sheet and COO (Certificate of Origin), complying with inspection and customs‑clearance rules for international markets.
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