1317-38-0 Usage
Description
Copper(II) oxide, also known as cupric oxide, is an inorganic compound with the formula CuO. It is a black solid and one of the two stable oxides of copper, the other being Cu2O or copper(I) oxide (cuprous oxide). As a mineral, it is known as tenorite. Cupric oxide is a p-type semiconductor material with small band gap energy and is known for its high physical and chemical stability, making it extremely useful in various catalytic applications.
Uses
Used in Ceramics and Glass Industry:
Cupric oxide is used as a pigment for coloring glass, ceramics, porcelain, and artificial gems. It provides blue-green pigmentation and is also used as a precursor to other copper applications, including fungicides and wood preservatives.
Used in Batteries and Electrodes:
Cupric oxide is utilized in batteries and electrodes, as well as in the production of rayon and other copper compounds.
Used in Antifouling Paints:
It serves as an antifouling paint agent for boat hulls and other outdoor, freshwater, and seawater wood constructions.
Used in Electroplating and Metallurgy:
Cupric oxide is employed in electroplating and as a flux in metallurgy.
Used in the Production of Rayons:
It is used in the production of rayons, which are synthetic fibers made from natural materials.
Used for Removal of Sulfur from Oils:
Cupric oxide aids in the removal of sulfur from oils, making them more suitable for various applications.
Used in Phosphor Mixtures:
It is used as an exciter in phosphor mixtures, which are used in the production of light-emitting devices.
Used for Polishing Optical Glass:
Cupric oxide is used as a polishing agent for optical glass, enhancing its clarity and quality.
Used as a Catalyst:
It is used as a catalyst in various industrial processes, including organic synthesis.
Used in High-Temperature Superconductors:
Cupric oxide is used in the development of high-temperature superconductors, which have potential applications in energy transmission and electronic devices.
Used in the Preparation of Copper Compounds:
Cupric oxide is used to prepare various copper compounds, which have a wide range of applications in different industries.
Used in the Dietary Industry:
Cupric oxide can be used as a dietary ingredient and as a nutrient. Copper aids in the absorption of iron, in the formation of red blood cells, and the proper bone formation and maintenance.
Used in Antimicrobial Applications:
Nanoscale copper(II) oxide has been studied for its antimicrobial properties, making it a promising material for use in textiles and paints.
Used in Photocatalysts, Sensors, and Lubricant Additives:
Nanorods of cupric oxide have shown advantages as oxidizing agents in high-speed chemical reactions, making them useful in photocatalysts, sensors, lubricant additives, and batteries.
Toxicity
see cuprous oxide.
Production methods
1.? Copper powder oxidation method. Reaction equation:
4Cu + O2 → 2Cu2O
2Cu2O + 2O2 → 4CuO
CuO + H2SO4 → CuSO4 + H2O
CuSO4 + Fe → FeSO4 + Cu↓
2Cu + O2 → 2CuO
Operating methods: roast the raw materials of copper ash and copper slag, and then heat them with gas for the initial oxidation to remove the water and organic impurities in raw materials. The resulting primary oxides are naturally cooled, pulverized, and then subjected to secondary oxidation to obtain crude copper oxides. Add crude copper oxides to the reactor pre-loaded 1: 1 sulfuric acid, and react under heating and stirring until the relative density of the liquid doubles and the pH value becomes 2 to 3. After the generated copper sulfate solution stands until clarification, add iron shavings under heating and stirring conditions to replace copper, and then wash the mixture with hot water to remove sulfate and iron. After centrifugal separation and drying, the above copper is oxidized and roasted for 8 hours at 450℃. Then the crude products are cooled and crushed to 100 mesh. After oxidized in oxidizing furnace, the final copper oxide powders are obtained by centrifugal separation.
2.? Copper powder oxidization method:
roast the raw materials of copper ash and copper slag, and then heat them with gas for the initial oxidation to remove the water and organic impurities in raw materials. The resulting primary oxides are naturally cooled, pulverized, and then subjected to secondary oxidation to obtain crude copper oxides. Add crude copper oxides to the reactor pre-loaded 1: 1 sulfuric acid, and react under heating and stirring until the relative density of the liquid doubles and the pH value becomes 2 to 3. After the generated copper sulfate solution stands until clarification, add iron shavings under heating and stirring conditions to replace copper, and then wash the mixture with hot water to remove sulfate and iron. After centrifugal separation and drying, the above copper is oxidized and roasted for 8 hours at 450℃. Then the crude products are cooled and crushed to 100 mesh. After oxidized in oxidizing furnace, the final copper oxide powders are obtained.
4Cu+O2→2Cu2O
Cu2O+0.5O2→2CuO
Cu0+H2S04→CuSO4+H2O
CuSO4+Fe→FeSO4+Cu↓
2Cu+O2→2CuO
Hazards & Safety Information
Category : Toxic substances
Toxicity classification? : high toxicity
Acute toxicity :? Oral-rat LD50 470 mg/kg; celiac-mouse LD50: 273 mg/kg
Flammability Hazardous properties? :
Non-combustible; producing toxic copper-containing fumes in fire
Storage and transportation characteristics? :
Storehouse should be low-temperature, well-ventilated and dry; stored separately with food and raw materials
Fire extinguishing agent? : water, carbon dioxide, dry powder, sand
Sources
http://www.encyclopedia.com/science/academic-and-educational-journals/copperii-oxide
http://jn.nutrition.org/content/129/12/2278.short
https://en.wikipedia.org/wiki/Copper(II)_oxide
Reactions
Copper(II) oxide dissolves in mineral acids such as hydrochloric acid, sulfuric acid or nitric acid to give the corresponding copper(II) salts:CuO + 2 HNO3 → Cu(NO3)2 + H2OCuO + 2 HCl → CuCl2 + H2OCuO + H2SO4 → CuSO4 + H2OIt reacts with concentrated alkali to form the corresponding cuprate salts:2 MOH + CuO + H2O → M2[Cu(OH)4]It can also be reduced to copper metal using hydrogen, carbon monoxide, or carbon:CuO + H2 → Cu + H2OCuO + CO → Cu + CO22 CuO + C → 2Cu + CO2When cupric oxide is substituted for iron oxide in thermite the resulting mixture is a low explosive, not an incendiary.
benefits
Cupric oxide is an oxide of the mineral copper. It is an essential element needed by the body to perform a host of functions.Cupric oxide is used by specific enzymes to help in the production of energy, to create collagen and elastin, to metabolize iron, and in many functions of the brain and central nervous system. Cupric oxide is found in health supplements such as vitamins and health aid treatments.Copper is a mineral that is needed in the body in small doses but has the ability to become toxic at high levels. Additional supplements of copper beyond what you should get in your normal diet should be discussed with a doctor.
Health Hazard
Exposures to copper fume cause fever, chills, muscle aches, nausea, dry throat, coughing,
weakness, lassitude, irritation to the eyes, nose, throat, skin, upper respiratory tract, chest
tightness, nose bleed, edema, and lung damage. Symptoms of copper fume poisoning also
include metallic or sweet taste, skin itching, skin rash, skin allergy, and a greenish color to
the skin, teeth, and hair. Workers have increased risk of Wilson’s disease.
Precautions
Occupational workers should use protective clothing, such as suits, gloves, footwear, and
headgear, and promptly change the contaminated clothing/work dress. Workers should
not eat, smoke, or drink where copper dust or powder is handled, processed, or stored.
Workers should wash hands carefully before eating, drinking, smoking, or using the toilet. The workplace should have a vacuum or a wet method facility to reduce the metal dust
during cleanup
Check Digit Verification of cas no
The CAS Registry Mumber 1317-38-0 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,3,1 and 7 respectively; the second part has 2 digits, 3 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 1317-38:
(6*1)+(5*3)+(4*1)+(3*7)+(2*3)+(1*8)=60
60 % 10 = 0
So 1317-38-0 is a valid CAS Registry Number.
InChI:InChI=1/Cu.O/rCuO/c1-2
