Gallium

Formula
Ga
Structure
Description
Gallium is a silvery-white liquid at room temperature.
Uses
The metal has no significant commercial uses, its compounds are used as semiconductors.

Registry Numbers and Inventories.
CAS
7440-55-3
EC (EINECS/ELINCS)
231-163-8
RTECS
LW8600000
RTECS class
Mutagen
UN (DOT)
2803
Merck
12,4364
Beilstein/Gmelin
16287 (G)
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Korea ECL
Listed

Properties.
Formula
Ga
Formula mass
69.72
Melting point, °C
29
Boiling point, °C
2403
Vapor density (air=1)
5.9 @ 25 C
Density
5.904 g/cm3
Solubility in water
Insoluble
Viscosity
0.019 P (53 C)
Thermal expansion
4.8E-5/K
Heat of fusion
5.6 kJ/mol

Hazards and Protection.
Storage
Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances. Refrigerator (approx 4 C).
Handling
Wash thoroughly after handling. Use only in a well ventilated area. 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
Avoid runoff into storm sewers and ditches which lead to waterways. Clean up spills immediately, using the appropriate protective equipment. Sweep up or absorb material, then place into a suitable clean, dry, closed container for disposal. Avoid generating dusty conditions. Provide ventilation.
Stability
Stable under normal temperatures and pressures. Easily tarnishes in moist air.
Incompatibilities
Oxidizing agents, acids, potential explosion with hydrogen peroxide and hydrochloric acid, violent reaction with halogens, forms amalgam with aluminum alloys.
Decomposition
Nature of decomposition products unknown..

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 fog, dry chemical, carbon dioxide, or regular foam. Use agent most appropriate to extinguish fire. Do not direct water at the heated material.
Fire potential
Non-combustible.
Hazards
Non-combustible, substance itself does not burn but may react upon heating to produce corrosive and/or toxic fumes. Runoff may pollute waterways.
Combustion products
Fire will produce irritating, corrosive and/or toxic gases.
Health
1
 
Flammability
0
 
 
Reactivity
0
 

Health.
Exposure effects
   Ingestion
May cause gastrointestinal irritation with nausea, vomiting and diarrhea. May cause bone marrow depression.
   Inhalation
May cause respiratory tract irritation. May cause burns to the respiratory tract.
   Skin
May cause severe irritation and possible burns. May cause dermatitis.
   Eyes
Contact with eyes may cause severe irritation, and possible eye burns.

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
Get medical aid. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. 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 immediately.

Transport.
UN number
2803
Response guide
Hazard class
8
Packing Group
III
 
Std. Transport #
4936391