20405-64-5
20405-64-5 structure
- Name: Copper(I) selenide
- Chemical Name: copper,selenium
- CAS Number: 20405-64-5
- Molecular Formula: Cu2Se
- Molecular Weight: 206.05200
- Catalog: Inorganic chemical industry Inorganic salt Chalcogenide
- Create Date: 2018-09-20 16:05:47
- Modify Date: 2025-08-25 17:37:51
| Name | copper,selenium |
|---|---|
| Synonyms |
EINECS 243-796-7
Dicopper selenide Cuprous selenide MFCD00049908 |
| Density | 6.84 g/mL at 25 °C(lit.) |
|---|---|
| Melting Point | 1113ºC |
| Molecular Formula | Cu2Se |
| Molecular Weight | 206.05200 |
| Exact Mass | 205.77600 |
| Appearance | Pieces | Dark blue to black |
| Water Solubility | Soluble in hydrochloric acid. Insoluble in water. |
| Symbol |
GHS06, GHS08, GHS09 |
|---|---|
| Signal Word | Danger |
| Hazard Statements | H301-H331-H373-H410 |
| Precautionary Statements | P261-P273-P301 + P310-P311-P501 |
| Personal Protective Equipment | Eyeshields;Faceshields;Gloves;type P2 (EN 143) respirator cartridges |
| Hazard Codes | T: Toxic;N: Dangerous for the environment; |
| Risk Phrases | 23/25-33-50/53 |
| Safety Phrases | 20/21-28-45-60-61 |
| RIDADR | UN 3077 9/PG 3 |
| WGK Germany | 3 |
| Packaging Group | III |
| Hazard Class | 6.1(b) |