Copper(I) Oxide Sputtering Targets - Cu2O

Purity---
99.9％

Shape---
Discs, Plate, Step,Rectangle, Sheet

Dimension---
Discs, Plate, Step (Dia ≤480mm,Thickness≥1mm)
Rectangle, Sheet, Step (Length ≤410mm, Width ≤310mm, Thickness ≥1mm)

Property---
brownish-red solid

Application---

Copper(I) oxide or cuprous oxide is the inorganic compound with the formula Cu2O. It is one of the principal oxides of copper. This red-coloured solid is a component of some antifouling paints. The compound can appear either yellow or red, depending on the size of the particles. Copper(I) oxide is found as the reddish mineral cuprite.

Cu2O crystallizes in a cubic structure with a lattice constant al=4.2696 Å. The Cu atoms arrange in a fcc sublattice, the O atoms in a bcc sublattice. One sublattice is shifted by a quarter of the body diagonal. The space group is \scriptstyle Pn\bar, which includes the point group with full octahedral symmetry.

Cuprous oxide is commonly used as a pigment, a fungicide, and an antifouling agent for marine paints. Rectifier diodes based on this material have been used industrially as early as 1924, long before silicon became the standard. Copper(I) oxide is also responsible for the pink color in a positive Benedict's Test.

Basic Infomation

CAS Registry Number:1317-39-1

ChemSpider:8488659

EC number:215-270-7

KEGG:C18714 Yes

PubChem:10313194

RTECS number:GL8050000

UNII:T8BEA5064F

Chemical formula:Cu2O

Molar mass:143.09 g/mol

Appearance:brownish-red solid

Density:6.0 g/cm3

Melting point:1,232 °C (2,250 °F; 1,505 K)

Boiling point:1,800 °C (3,270 °F; 2,070 K)

Solubility in water:Insoluble

Solubility in acid:Soluble

Band gap:2.137 eV

Crystal structure:cubic

Thermochemistry Std molar entropy (So298):93 J·mol−1·K−1

Std enthalpy of formation (ΔfHo298):−170 kJ·mol−1