Bismuth

Formula
Bi
Structure
Description
Gray white soft metal.
Uses
In safety devices in fire detection & extinguishing systems, catalyst for making acrylic fibers, in prodn of malleable irons, carrier for radioactive uranium fuel in atomic reactors.

Registry Numbers and Inventories.
CAS
7440-69-9
EC (EINECS/ELINCS)
231-177-4
RTECS
EB2600000
RTECS class
Human Data
UN (DOT)
3080
Merck
12,1297
Beilstein/Gmelin
16267 (G)
Swiss Giftliste 1
G-3060
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Korea ECL
Listed

Properties.
Formula
Bi
Formula mass
208.98
Melting point, °C
271-272
Boiling point, °C
1490
Vapor pressure, mmHg
0.75 (930 C)
Density
9.78 g/cm3 (20 C)
Solubility in water
Insoluble
Viscosity
0.00119 P (500 C)
Dielectric constant
12 (505 C)
Thermal expansion
15.3E-5/K (20 C)
Heat of fusion
10.8 kJ/mol
Heat of vaporization
187.5 kJ/mol

Hazards and Protection.
Storage
Keep away from heat and flame. Keep away from sources of ignition. Store in a cool, dry place. Keep container closed when not in use. Store in a tightly closed container.
Handling
Wash thoroughly after handling. Use only in a well ventilated area. Minimize dust generation and accumulation. Avoid contact with eyes, skin, and clothing. 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
Sweep up or absorb material, then place into a suitable clean, dry, closed container for disposal.
Stability
Stable under normal temperatures and pressures.
Incompatibilities
Acids, aluminum, bromine trifluoride, halogens, nitric acid.
Decomposition
Irritating and toxic fumes and gases, bismuth oxide.

Fire.
Lower exp. limit, %
4.0
Fire fighting
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Flammable when exposed to flame. Flammable solid. Extinguishing media: Use agent most appropriate to extinguish fire.
Fire potential
Moderate when exposed to flame and by chemical reaction with oxidizing agents.
Hazards
Oxides from metallic fires are a severe health hazard. Fire may produce irritating, corrosive and/or toxic gases.

Health.
Exposure limit(s)
OEL-RUSSIA:STEL 0.5 mg/m3
Poison_Class
-
Exposure effects
Chronic exposure may bismuth line (gray blue deposition in the gum area). May cause excess salivation, foul breath,
   Ingestion
May cause gastrointestinal irritation with nausea, vomiting and diarrhea. May cause fever and rheumatic pain.
   Inhalation
May cause respiratory tract irritation.
   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 immediately.
   Inhalation
Get medical aid immediately. Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen.
   Skin
Get medical aid immediately. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes.
   Eyes
Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately.

Transport.
UN number
3080
Response guide
Hazard class
6.1
Packing Group
II