yellow-red cubic crystals
Registry Numbers and Inventories.
Swiss Giftliste 1
Japan ENCS (MITI)
Melting point, °C
Boiling point, °C
Vapor pressure, mmHg
0.0975 (883 C)
4.3 cp (1527 C)
Heat of fusion
Hazards and Protection.
Store in a cool, dry, well-ventilated area away from incompatible substances.
Wash thoroughly after handling. Minimize dust generation and accumulation. Avoid contact with eyes, skin, and clothing. Avoid ingestion and inhalation. Use with adequate ventilation.
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.
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.
Sweep up or absorb material, then place into a suitable clean, dry, closed container for disposal. Avoid generating dusty conditions. Provide ventilation.
Strong oxidizing agents - strong acids.
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 may produce irritating, corrosive and/or toxic gases.
Chronic exposure to selenium may cause central nervous system effects, digestive tract disturbances, pallor, garlic breath,
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.
May cause respiratory tract irritation. The toxicological properties of this substance have not been fully investigated.
May cause skin irritation.
May cause eye irritation.
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.
Remove from exposure to fresh air immediately. Get medical aid if cough or other symptoms appear.
Get medical aid if irritation develops or persists. Rinse area with large amounts of water for at least 15 minutes.
Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.
I; II; III
USCG CHRIS Code