COPPER(I) SELENIDE
Synonym(s):Cuprous selenide;Dicopper monoselenide;Dicopper selenide
- CAS NO.：20405-64-5
- Empirical Formula: Cu2Se
- Molecular Weight: 206.06
- MDL number: MFCD00049908
- EINECS: 243-796-7
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-05-28 03:48:47
What is COPPER(I) SELENIDE?
Chemical properties
Dark-blue to black crystalline solid. Soluble in sulfuric acid (sulfur dioxide evolved); also in potassium cyanide solution.
The Uses of COPPER(I) SELENIDE
Copper(I) selenide is used as intermediate in chemical research. It is a thermoelectric material used in a number of industrial applications including infrared detection and imaging.
The Uses of COPPER(I) SELENIDE
In semiconductors.
General Description
This product has been enhanced for energy efficiency.
Properties of COPPER(I) SELENIDE
| Melting point: | 1113°C |
| Density | 6.84 g/mL at 25 °C (lit.) |
| solubility | insoluble in H2O; soluble in acid solutions |
| form | Pieces |
| color | Dark blue to black |
| Water Solubility | Soluble in hydrochloric acid. Insoluble in water. |
| Merck | 14,2666 |
| Exposure limits | ACGIH: TWA 1 mg/m3; TWA 0.2 mg/m3 NIOSH: IDLH 100 mg/m3; IDLH 1 mg/m3; TWA 1 mg/m3; TWA 0.2 mg/m3 |
| EPA Substance Registry System | Copper selenide (Cu2Se) (20405-64-5) |
Safety information for COPPER(I) SELENIDE
| Signal word | Danger |
| Pictogram(s) |
 Skull and Crossbones Acute Toxicity GHS06  Health Hazard GHS08  Environment GHS09 |
| GHS Hazard Statements |
H373:Specific target organ toxicity, repeated exposure H410:Hazardous to the aquatic environment, long-term hazard |
| Precautionary Statement Codes |
P260:Do not breathe dust/fume/gas/mist/vapours/spray. P264:Wash hands thoroughly after handling. P264:Wash skin thouroughly after handling. P273:Avoid release to the environment. P314:Get medical advice/attention if you feel unwell. P301+P310:IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician. |
Computed Descriptors for COPPER(I) SELENIDE
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