Molecular Formula | CuO |
Molar Mass | 79.55 |
Density | 6.315 |
Melting Point | 1326 °C |
Boling Point | 1026℃ (d℃omp) |
Water Solubility | insoluble |
Appearance | Black powder |
Specific Gravity | 6.3-6.49 |
Color | Brown to black |
Exposure Limit | ACGIH: TWA 1 mg/m3NIOSH: IDLH 100 mg/m3; TWA 0.1 mg/m3; TWA 1 mg/m3 |
Merck | 14,2646 |
PH | 7 (50g/l, H2O, 20℃)(slurry) |
Storage Condition | no restrictions. |
Stability | Stable. Incompatible with reducing agents, hydrogen sulfide, aluminium, alkali metals, finely powdered metals. |
Refractive Index | 2.63 |
MDL | MFCD00010979 |
Physical and Chemical Properties | Black monoclinic crystalline or black to brown-black amorphous crystalline powder. melting point 1326 ℃ relative density 6.3~6.49 solubility insoluble in water and alcohol, soluble in dilute acid, ammonium chloride, ammonium carbonate and potassium cyanide. Black monoclinic or black to brownish black amorphous crystalline powder. The relative density of 6.3~6.49. Melting point 1326 °c. Insoluble in water and alcohol, soluble in dilute acid, ammonium chloride, ammonium carbonate and potassium cyanide. Hydrogen or carbon monoxide can be reduced to metallic copper at high temperatures. |
Use | Used as glass, porcelain pigment, desulfurization agent, Catalyst, also used in Rayon Industry used as glass, enamel, ceramic industry colorants, paint anti-Zolam agent, optical glass polishing agent. It is used in the manufacture of dyes, organic catalyst supports and copper compounds. It is also used in the rayon manufacturing industry and as a desulfurizer for oils and fats. It is used as a raw material for the manufacture of other copper salts and is also a raw material for the manufacture of artificial precious stones. |
Risk Codes | R22 - Harmful if swallowed R37 - Irritating to the respiratory system R50 - Very Toxic to aquatic organisms |
Safety Description | S22 - Do not breathe dust. S36 - Wear suitable protective clothing. S61 - Avoid release to the environment. Refer to special instructions / safety data sheets. S60 - This material and its container must be disposed of as hazardous waste. S29 - Do not empty into drains. |
UN IDs | UN 3077 9 / PGIII |
WGK Germany | 1 |
RTECS | GL7900000 |
TSCA | Yes |
HS Code | 28255000 |
Hazard Class | 9 |
Toxicity | LD50 orally in Rabbit: 470 mg/kg |
Raw Materials | Copper(II) sulfate Iron Copper |
Downstream Products | Copper(II) sulfate Copper(II) sulfate |
Black to brownish-black amorphous powder. Melting point about 1330 °c; d about 6.4. Heat of formation (25 °c)- 37.1 kcal/rnol. Soluble in acid into copper salt, soluble in ammonia, ammonium chloride and potassium cyanide solution, respectively, the formation of soluble salt, but also soluble alkali metal hydroxide dilute solution and blue, insoluble in water, ethanol. The reaction occurs in contact with acetylene and hydrazine.
electrolytic copper was dissolved in nitric acid and heated in the presence of excess copper until the pH of the solution was about 4. The solution was filtered and allowed to evaporate, producing a green basic nitrate. Heating was continued to raise the temperature, and the obtained solid was pulverized and then burned at 700 ° C. For several hours to obtain a pure copper oxide powder.
determination of microAnalytical reagents, such as carbon. Oxidant. Catalysts. Manufacture of blue glass, blue-green gemstone. Metal Adhesive curing agent.
inhalation, ingestion or skin contact with the substance can cause a delayed reaction. If the skin or eyes come into contact with the substance, it should be immediately rinsed with clean water.