Copper Oxide CuO powder CAS 1317-38-0

 What is Cuprous Oxide CuO powder ？

Copper oxidation states: Copper exists in two oxidation states: +1 and +2. 

Copper(Ⅱ) oxide is an inorganic substance with a CuO chemical formula. It is a black oxide of copper, slightly amphiphilic slightly hygroscopic. Copper oxide is a weak base.

Black copper oxide is CuO, and red copper oxide is Cu2O.

Copper oxide is virtually insoluble in water or alcohols; copper oxide dissolves slowly in ammonia solution but quickly in ammonium carbonate solution; it is dissolved by alkali metal cyanides and by strong acid solutions; hot formic acid and boiling acetic acid solutions readily dissolve the oxide.

Copper oxide is mainly used to make rayon, ceramics, glaze and enamel, batteries, petroleum desulfurizers, pesticides, hydrogen production, catalysts, and green glass.

Cu oxide CuO is produced on a large scale by pyrometallurgy, a stage of extracting copper from ore. The ore is treated with an aqueous mixture of ammonium carbonate, ammonia, and oxygen to obtain copper (I) and copper (II) amino complexes, which are extracted from the solid. These complexes are decomposed with steam to produce CuO.

Cupric oxide is a precursor in many copper-containing products, such as wood preservatives and ceramics. ​​The mean daily dietary intake of copper in adults ranges between 0.9 and 2.2 mg. Common routes of cupric oxide exposure include ingestion, dermal exposure, and inhalation. Copper(II) oxide nanoparticles ( NPCuO) have industrial applications as antimicrobial agents in textiles, paints, and catalysts in organic synthesis. They may also be produced from electronic waste. Cupric oxide poses potential health and environmental concerns due to toxic and muta particles generating reactive oxygen species.

Copper oxide for sale:

Feel free to inquire about the latest copper oxide price if you would like to buy copper oxide powder in bulk.

Performance of Copper Oxide CuO Powder:

Copper oxide is insoluble in water, and ethanol is soluble in acid, ammonium chloride, and potassium cyanide solutions. It slowly dissolves in an ammonia solution and can react with strong bases. Copper oxide is mainly used for making rayon, ceramics, glaze and enamel, batteries, petroleum desulfurizes, insecticides, hydrogen production, catalysts, green glass, etc.
 

Specification of Copper Oxide CuO Powder:

Technical Parameter of Copper Oxide CuO Powder:

How is Copper Oxide CuO powder produced? 

There are several methods of industrial production of copper oxide

1. Copper powder oxidation method

Using copper ash and slag for raw materials， it is roasted and heated with coal gas for preliminary oxidation to remove moisture and organic impurities in the raw materials. The generated primary oxide is naturally cooled, and after pulverization, it undergoes secondary oxidation to obtain crude copper oxide. The crude copper oxide is added to a reactor pre-installed with 1:1 sulfuric acid, and the liquid is heated and stirred until the liquid's relative density is doubled. The pH value is 2 to 3 at the end of the reaction, and a copper sulfate solution is generated. After clarification, under heating and stirring conditions, iron shavings are added to replace copper and then washed with hot water until there is no sulfate and iron after centrifugal separation, drying, oxidation roasting at 450°C for 8 hours, cooling, crushing to 100 meshes, and then oxidation in an oxidation furnace to obtain copper oxide powder.

2. Nitration of copper wire or copper powder

Dissolve the copper wire or copper powder in 6mol/L nitric acid to keep the copper in excess, heat the solution to a pH value of 3-4 to remove the iron hydroxide precipitate, then mix it with 10% (mass) sodium carbonate solution and heat to boiling. Alkaline salt is precipitated, discard the supernatant, wash thoroughly with water, filter, and dry. The dried basic copper carbonate is heated and decomposed into black copper oxide powder under a small fire with sufficient stirring: CuCO3·Cu(OH)2=2CuO+CO2↑+H2O.

When no more carbon dioxide is produced, the decomposition is complete.

3. Copper nitrate thermal decomposition method

The electrolytic copper is dissolved in dilute nitric acid, evaporated to dryness in a water bath, and then heated in a desiccator from 90°C to 120°C very slowly. When the soft basic salt is formed, it is boiled in water, filtered, and dried; then it is slowly heated to 400℃ to remove most of the nitric acid; then crushed and heated to 850℃ for one hour to decompose into oxidation copper. To complete the reaction, the product can be pulverized again, heated at about 700°C for 1 hour, and then placed in a desiccator to cool.

4. Conductive water dissolution method

Dissolve high-purity copper nitrate with conductive water, filter, add excess high-purity NH3·H2O to the clear liquid, filter out impurities and residue, and use high-purity nitric acid to neutralize the filtrate to precipitate copper hydroxide. Filter, wash once with conductive water, add nitric acid to dissolve the residue, add high-purity ammonium carbonate to precipitate copper carbonate, then wash, spin dry, dry in an oven at 200°C, burn at 450-550°C for 3 to 4 hours, and get Spectral pure copper oxide:

5. Copper carbonate thermal decomposition method

Put copper powder or copper wire in a fume hood with as little 6mol/L nitric acid as possible to completely dissolve it. If the solution is opaque, it needs to be filtered. Besides, the sodium carbonate solution is mixed with the copper nitrate solution and boiled to generate black basic salt precipitation. When the solid settles, discard the supernatant liquid, fully wash, filter, and dry by decantation. Please put it on an evaporating dish and heat it with a small fire with sufficient stirring to decompose it into copper oxide.

Copper Oxide Uses:

As a significant product of copper mining, copper(II) oxide is the starting point for producing other copper salts. For example, many wood preservatives are produced from copper oxide.

Cupric oxide is a ceramics pigment that produces blue, red, and green, and sometimes gray, pink, or black glazes.

It is also incorrectly used as a dietary supplement in animal feed. Due to low bioactivity, negligible copper is absorbed.

It is also used when welding with copper alloys.

A copper oxide electrode formed part of the early battery type, the Edison–Lalande cell. The copper oxide was also used in a lithium battery type.

Besides, copper(II) oxide can be used as catalysis, superconductivity, ceramics; and catalyst carriers, electrode activity materials;

glass, porcelain colorants, optical glass polishing agent, oil desulfurized; the propellant rocket fuel speed catalyst.

Storage Condition of Copper Oxide CuO Powder：
Copper Oxide CuO Powder should be stored in dry, cool and sealing of the environment, can not be exposure to air, in addition should avoid the heavy pressure, according to ordina.

Packing & Shipping of Copper Oxide CuO Powder：
It is packed in double plastic bags inside, which can be filled with argon in vacuum; it can be vacuumed and filled with argon for protection..
Copper Oxide CuO Powder packing: vacuum packing, 100g, 500g or 1kg/bag, 25kg/barrel, or as your request.
Copper Oxide CuO Powder shipping: could be shipped out by sea , by air, by express as soon as possible once payment receipt.

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