Tantalum boride

  • Tantalum diboride
Formula
B2Ta
Structure
Description
black hexagonal crystals

Registry Numbers and Inventories.
CAS
12007-35-1
EC (EINECS/ELINCS)
234-507-5
36/37/38
Beilstein/Gmelin
169578 (G)
Canada DSL/NDSL
NDSL
US TSCA
Listed
Korea ECL
Listed

Properties.
Formula
B2Ta
Formula mass
202.57
Melting point, °C
3152
Density
10.5 g/cm3 (25 C)
Solubility in water
Insoluble
Thermal expansion
8.5E-6/K

Hazards and Protection.
Storage
Keep tightly closed. Store in a cool dry place.
Protection
Wear appropriate government approved respirator, chemical-resistant gloves, safety goggles, other protective clothing.
Small spills/leaks
Sweep up, place in a bag and hold for waste disposal. Avoid raising dust. Ventilate area and wash spill site after material pickup is complete.
Stability
Stable at normal temperatures and pressures. Moisture sensitive.
Incompatibilities
Strong acids, Strong bases, Water.
Decomposition
Boron oxides.

Fire.
Fire fighting
Extinguish using Dry chemical powder. Carbon dioxide. Unsuitable: Do not use water. Wear self-contained breathing apparatus and protective clothing to prevent contact with skin and eyes.
Hazards
Emits toxic fumes under fire conditions.

Health.
Exposure effects
Irritant. Irritating to eyes, respiratory system and skin.
   Inhalation
Material is irritating to mucous membranes and upper respiratory tract.

First aid
 
   Ingestion
If swallowed, wash out mouth with water provided person is conscious. Call a physician.
   Inhalation
If inhaled, remove to fresh air. If not breathing give artificial respiration. If breathing is difficult, give oxygen.
   Skin
In case of contact, immediately wash skin with soap and copious amounts of water.
   Eyes
In case of contact, immediately flush eyes with copious amounts of water for at least 15 minutes.

Transport.