| Names | |
|---|---|
|  IUPAC name  Copper(II) selenide  | |
| Other names  Cupric selenide  | |
| Identifiers | |
3D model (JSmol)  | |
| ChemSpider | |
| ECHA InfoCard | 100.013.885 | 
| EC Number | 
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 PubChem CID  | |
| UNII | |
 CompTox Dashboard (EPA)  | |
  | |
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| Properties | |
| CuSe | |
| Molar mass | 142.517 g·mol−1 | 
| Appearance | Black | 
| Hazards | |
| GHS labelling: | |
|   | |
| Danger | |
| H301, H331, H373, H410 | |
| P260, P261, P264, P270, P271, P273, P301+P316, P304+P340, P316, P319, P321, P330, P391, P403+P233, P405, P501 | |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).  | |
Copper(II) selenide is an inorganic binary compound between copper and selenium, with the chemical formula CuSe.
Copper(II) selenide is produced in situ to form a protective black coating on iron or steel parts in some cold-bluing processes. [1] Bluing solutions that operate in this manner will typically be labeled as containing selenous acid or selenium dioxide. [2] [3] It has also been investigated for use in the treatment of colon cancer. [4]
Copper selenides are the most common selenium minerals. CuSe is known in mineralogy as klockmannite. [5]