Copper Oxide 1317-38-0

Model NO.:CAS NO.: 1317-38-0 Classification:Copper Oxide Grade Standard:Industrial Grade Kind:Copper Oxide Quality:Special Class Product Name:Copper Oxide CAS No.:1317-38-0 Direct Manufactuer:Competitive Price Hs:2825500000 Trademark:zefeng Transport Package:25kgs/PP Bag or as The Buyer Request Specification:CAS NO.: 1317-38-0 Origin:China (Mainland) HS Code:2825500000 Copper Oxide 1317-38-0

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Copper oxide or cupric oxide (CuO) is the higher oxide of copper. As a mineral, it is known as tenorite.
Cupric oxide is used as a pigment in ceramics to produce blue, red, and green (and sometimes gray, pink, or black) glazes. It is also used to produce cuprammonium hydroxide solutions, used to make rayon. It is also occasionally used as a dietary supplement in animals, against copper deficiency. Copper(II) oxide has application as a p-type semiconductor, because it has a narrow band gap of 1.2 eV. It is an abrasive used to Polish optical equipment. Cupric oxide can be used to produce dry cell batteries. It has also been used in wet cell batteries as the cathode, with lithium as an anode, and dioxalane mixed with lithium perchlorate as the electrolyte. Copper(II) oxide can be used to produce other copper salts. It is also used when welding with copper alloys.
Another use for cupric oxide is as a substitute for Iron Oxide in thermite. This can turn the thermite from an incendiary to a low explosive.

Copper  oxide
Identifiers
CAS number	1317-38-0
PubChem	14829
ChemSpider	144499
UNII	V1XJQ704R4
RTECS number	GL7900000
Properties
Molecular formula	CuO
Molar mass	79.545 g/mol
Appearance	black to brown powder
Density	6.315 g/cm3
Melting point	1326 °C, 1599 K, 2419 °F
Boiling point	2000 °C, 2273 K, 3632 °F
Solubility in  water	insoluble
Solubility	soluble in  ammonium chloride ,  potassium cyanide insoluble in  alcohol ,  ammonium hydroxide ,  ammonium carbonate
Band gap	1.2  eV
Refractive index (nD)	2.63
Structure
Crystal structure	monoclinic ,  mS8
Space group	C2/c, #15
Lattice constant	a = 4.6837, b = 3.4226, c = 5.1288
Lattice constant	α = 90°, β = 99.54°, γ = 90°
Thermochemistry
Std enthalpy of formation ΔfHo298	−156 kJ@mol−1
Standard molar entropy So298	43 J@mol−1@K−1
Hazards
MSDS	Fischer Scientific
EU Index	Not listed
EU classification	Harmful (Xn) Dangerous for the environment (N)
Flash point	Non-flammable
Related compounds
Other  anions	Copper(II) sulfide
Other  cations	Nickel(II) oxide Zinc oxide
Related compounds	Copper(I) oxide

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