calcium selenide Property

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

RIDADR 

UN3134

TSCA 

Yes

HazardClass 

4.3

PackingGroup 

III

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Hazard statements

H261In contact with water releases flammable gas

H301Toxic if swalloed

H331Toxic if inhaled

H373May cause damage to organs through prolonged or repeated exposure

H400Very toxic to aquatic life

H410Very toxic to aquatic life with long lasting effects

Precautionary statements

P231+P232Handle under inert gas. Protect from moisture.

P260Do not breathe dust/fume/gas/mist/vapours/spray.

P405Store locked up.

calcium selenide Chemical Properties,Usage,Production

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]

Uses

In electron emitters.