Thulium oxide

  • Thulia
Formula
Tm2O3
Structure
Description
green-white cubic crystals

Registry Numbers and Inventories.
CAS
12036-44-1
EC (EINECS/ELINCS)
234-851-6
Beilstein/Gmelin
9557 (G)
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed
Korea ECL
Listed

Properties.
Formula
O3Tm2
Formula mass
385.86
Melting point, °C
2410
Vapor pressure, mmHg
0.00000319 (2000 C)
Density
8.6 g/cm3 (20 C)
Thermal expansion
0.0000071/K

Hazards and Protection.
Storage
Keep container closed when not in use. Store in a cool, dry, well-ventilated area away from incompatible substances.
Handling
Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Minimize dust generation and accumulation. Avoid contact with eyes, skin, and clothing. Keep container tightly closed. Avoid ingestion and inhalation.
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
Clean up spills immediately, using the appropriate protective equipment. Sweep up, then place into a suitable container for disposal. Avoid generating dusty conditions. Provide ventilation.
Stability
Stable under normal temperatures and pressures. Absorbs carbon dioxide from the air.
Incompatibilities
Strong oxidizing agents - carbon dioxide - moisture.
Decomposition
Irritating and toxic fumes and gases.

Fire.
Fire fighting
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Substance is noncombustible. Extinguishing media: Use agent most appropriate to extinguish fire.
Health
0
 
Flammability
0
 
 
Reactivity
0
 

Health.
Exposure effects
Inhalation of product may aggravate existing chronic repiratory problems such as asthma, emphysema or bronchitis.
   Ingestion
May cause irritation of the digestive tract.
   Inhalation
May cause wheezing, upper repiratory tract irritation.
   Skin
May cause skin irritation. Skin absorption not likely.
   Eyes
Dust may cause mechanical 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 immediately.
   Inhalation
Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.
   Skin
Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Get medical aid if irritation develops or persists. Wash clothing before reuse.
   Eyes
Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.

Transport.