Zinc selenide

Formula
ZnSe
Structure
Description
yellow-red cubic crystals
Uses
Commercial phosphor.

Registry Numbers and Inventories.
CAS
1315-09-9
EC (EINECS/ELINCS)
215-259-7
UN (DOT)
3283
Merck
12,10290
Beilstein/Gmelin
13767 (G)
Swiss Giftliste 1
G-8740
Canada DSL/NDSL
NDSL
US TSCA
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed
Korea ECL
Listed

Properties.
Formula
SeZn
Formula mass
144.34
Melting point, °C
1793
Boiling point, °C
(sublimes)
Vapor pressure, mmHg
0.0975 (883 C)
Density
5.4 g/cm3
Viscosity
4.3 cp (1527 C)
Thermal expansion
0.0000071/K
Heat of fusion
19.00 kJ/mol

Hazards and Protection.
Storage
Store in a cool, dry, well-ventilated area away from incompatible substances.
Handling
Wash thoroughly after handling. Minimize dust generation and accumulation. Avoid contact with eyes, skin, and clothing. Avoid ingestion and inhalation. Use with adequate ventilation.
Protection
Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166. Skin: Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to prevent skin exposure.
Respirators
Follow the OSHA respirator regulations found in 29CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator when necessary.
Small spills/leaks
Sweep up or absorb material, then place into a suitable clean, dry, closed container for disposal. Avoid generating dusty conditions. Provide ventilation.
Stability
No data.
Incompatibilities
Strong oxidizing agents - strong acids.
Decomposition
Selenium/selenium oxides.

Fire.
Fire fighting
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. To extinguish fire use water spray, dry chemical, carbon dioxide, or chemical foam.
Fire potential
Non-Combustible
Combustion products
Fire may produce irritating, corrosive and/or toxic gases.

Health.
Poison_Class
2
Exposure effects
Chronic exposure to selenium may cause central nervous system effects, digestive tract disturbances, pallor, garlic breath,
   Ingestion
May cause irritation of the digestive tract. The toxicological properties of this substance have not been fully investigated. Selenium poisoning causes a variety of gastrointestinal and CNS effects. Nervousness, drowsiness and convulsions are common occurrences.
   Inhalation
May cause respiratory tract irritation. The toxicological properties of this substance have not been fully investigated.
   Skin
May cause skin irritation.
   Eyes
May cause eye irritation.

First aid
 
   Ingestion
If victim is conscious and alert, give 2-4 cupfuls of milk or water. Never give anything by mouth to an unconscious person. Get medical aid.
   Inhalation
Remove from exposure to fresh air immediately. Get medical aid if cough or other symptoms appear.
   Skin
Get medical aid if irritation develops or persists. Rinse area with large amounts of water for at least 15 minutes.
   Eyes
Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.

Transport.
UN number
3283
Response guide
Hazard class
6.1
Packing Group
I; II; III
 
USCG CHRIS Code
SEC