calcium selenide
- CAS NO.：1305-84-6
- Empirical Formula: CaSe
- Molecular Weight: 119.04
- MDL number: MFCD00064701
- EINECS: 215-141-5
- Update Date: 2026-05-28 02:11:15
What is calcium selenide ?
Chemical properties
-20 mesh 99.5% pure; white powder(s); in air may turn red within a few minutes, and light brown in a few hours; obtained by reduction of CaSeO4 with H2 at 400°C–500°C; used in electron emitter devices [CER91] [MER06]
The Uses of calcium selenide
In electron emitters.
Properties of calcium selenide
| Density | 3.57 |
| solubility | reacts with H2O |
| form | white-brown cubic crystals |
| color | white-brown cubic crystals, crystalline |
| Water Solubility | Decomposes in water |
| Sensitive | Moisture Sensitive |
| Merck | 14,1701 |
| EPA Substance Registry System | Calcium selenide (CaSe) (1305-84-6) |
Safety information for calcium selenide
| Pictogram(s) |
 Flame Flammables GHS02  Skull and Crossbones Acute Toxicity GHS06  Health Hazard GHS08  Environment GHS09 |
| GHS Hazard Statements |
H261:Substances And Mixtures Which, In Contact With Water,Emit Flammable Gases H301:Acute toxicity,oral H331:Acute toxicity,inhalation H373:Specific target organ toxicity, repeated exposure H400:Hazardous to the aquatic environment, acute hazard H410:Hazardous to the aquatic environment, long-term hazard |
| Precautionary Statement Codes |
P260:Do not breathe dust/fume/gas/mist/vapours/spray. P231+P232:Handle under inert gas. Protect from moisture. P405:Store locked up. |
Computed Descriptors for calcium selenide
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