Copper carbonate basic powder, commonly known as malachite when natural, is a vibrant green, fine-grained solid. Synthesized via precipitation of copper salts with carbonates, it exhibits low water solubility but reacts vigorously with acids, releasing CO₂. This compound decomposes at ~200°C to copper oxide, CO₂, and water.
1.Product Introduction
Copper carbonate basic powder, commonly known as malachite when natural, is a vibrant green, fine-grained solid. Synthesized via precipitation of copper salts with carbonates, it exhibits low water solubility but reacts vigorously with acids, releasing CO₂. This compound decomposes at ~200°C to copper oxide, CO₂, and water. Its vivid color and stability make it prized in artists' pigments, ceramic glazes, and as a precursor for copper-based catalysts. Industrially, it serves in wood preservation and fungicide formulations, leveraging controlled copper ion release. Handling requires care due to potential dust inhalation risks and moisture sensitivity.
2.Product Parameter (Specification)
| Test Item | Test Standard | Test Result |
| Copper (Cu) % | ≥54.0 | 55.02 |
| Iron (Fe)% | ≤ 0.03 | 0.0145 |
| Plumbum (Pb) % | ≤0.002 | 0.0019 |
| Sulfate (SO42-) | ≤0.05 | 0.008 |
| Chloride (Cl ) | ≤0.05 | 0.027 |
| HCl insoluble matters | ≤ 0.01 | 0.009 |
3.Product Feature And Application
Copper carbonate basic powder is utilized as a slow-release copper supplement in animal feed, preventing deficiencies in livestock. In pyrotechnics, it generates green flames due to copper ion emission upon decomposition. It serves as a precursor for synthesizing copper-based nanomaterials, including antimicrobial coatings for medical devices. The compound acts as a pH-neutralizing agent in electroplating baths, stabilizing electrolyte solutions. Additionally, it functions in analytical chemistry as a primary standard for copper titrations and aids in restoring historical copper artifacts through controlled patination. Its controlled reactivity and vivid color also support specialized art conservation techniques.
4.Product Details
Copper carbonate basic powder forms monoclinic crystals with a density of 4.0 g/cm³. It thermally decomposes to black CuO above 200°C, releasing CO₂ and H₂O. Non-hygroscopic but releases CO₂ in strong acids. Dust is an irritant; requires ventilation. Anhydrous post-decomposition residue retains catalytic activity.
5.Product Qualification
We have received numerous government awards in China for our outstanding products and integrity in business operations. For exports, we hold REACH certification for multiple products, meeting EU import requirements for copper salt products. We are certified under the ISO 9001 Quality Management System and comply with RoHS standards. We can provide Safety Data Sheets (SDS) and all necessary documentation for every product.
6.Deliver,Shipping And Serving
In terms of packaging, we currently have two packaging options: bags and drums, their standard is 25kg. each pallet can load a total of 1 ton of goods. Some of the products will be in the ordinary bag on the basis of increasing the ton bag for uniform packaging, in the protection of the product at the same time to ensure the beauty of the goods. For some special products or special needs of customers, we can ensure the sealing and safety of the products by the form of barrel.
7.FAQ
What are the delivery terms available?
Generally, we commonly use FOB and CIF for delivery. If the customer has other delivery requirements, we can also discuss and negotiate.
8.Company Introduction
We are a technology-driven industrial and trading enterprise specializing in the R&D, production, and sales of metal powders and copper salt products. The Hongyuan Group comprises Hangzhou Fuyang Hongyuan Renewable Resources Co., Ltd. and Hangzhou Haoteng Technology Co., Ltd. Since its establishment in December 2012, the company has accumulated total investments of 350 million yuan and operates in a 50,000-square-meter facility. With over 30 years of deep production expertise and more than 12 years of mature market sales experience, we possess substantial industry knowledge.
Equipped with advanced production facilities and backed by robust R&D capabilities and a professional management team, we enforce stringent quality control over our products. Each batch undergoes precise testing and multiple inspections, accompanied by authoritative test reports, ensuring all parameters fully comply with national standards or customized client requirements before shipment. This commitment delivers stable, reliable, and high-quality products to our customers.
Our core product portfolio includes copper oxide, cupric oxide, copper hydroxide, basic copper chloride, basic copper carbonate, anhydrous copper chloride, and dihydrate copper chloride, among others, serving diverse industrial applications. Our products are exported globally, with established long-term partnerships across Europe, Southeast Asia, and other regions, earning widespread recognition in international markets.
We look forward to establishing a mutually beneficial partnership with you.
