ABC of Safety in the Biological Sciences
BROMINE (Br2)
SYNONYMS
None known.
CHARACTERISTICS
Fuming reddishbrown liquid with pungent odour. Is corrosive in
presence of water, reacts violently with many organic compounds,
many metals and phosphorus causing fire and explosion hazards.
Attacks many plastics.
INCOMPATIBILITY
Many organic compounds, many metals and phosphorus causing fire
and explosion hazards.
HEALTH HAZARD DATA
May be absorbed by inhalation, ingestion and through the skin.
Is corrosive to eyes, skin and respiratory tract. Inhalation may
cause sore throat, coughing, shortness of breath, laboured
breathing and dizziness. Skin contact is corrosive and causes
redness, pain and serious burns. Eye contact is corrosive
causing pain, redness and blurred vision. Ingestion is corrosive
causing sore throat, vomiting and abdominal spasm.
HANDLING and GENERAL PRECAUTIONS Use a fume hood.
Avoid skin and eye contact.
Avoid inhalation or ingestion of the powder.
Keep away from heat or naked flames.
Keep away from moisture.
Keep away from combustible substances.
Keep away from metal powders.
Keep the container tightly sealed.
Wash hands thoroughly after handling.
Use a fume hood to minimise exposure to this substance. Wear
protective clothing to avoid skin or eye contact, inhalation or
ingestion. A long sleeved laboratory coat or gown, rubber
gloves, safety goggles and a face mask as a minimum standard.
TREATMENTS
Skin immediately wash the affected area with soap or mild
detergent and large amounts of water until all evidence of the
chemical has been removed (approximately 15 minutes). If
hypersensitivity develops seek medical attention.
Eyes wash the affected eye with large amounts of water until
all evidence of the chemical has been removed (approximately 15
minutes). If irritation or pain persist seek immediate medical
attention.
Inhalation remove from the area of exposure to fresh air. Keep
warm and allow to rest. If irritation persists or signs of
toxicity develop seek medical attention.
Ingestion wash out the mouth thoroughly with water and give
water to drink. Do not induce vomiting. Never give anything by
mouth to an unconscious person. Seek immediate medical advice.
STORAGE
Store in a cool, dry atmosphere away from heat or ignition
sources.
DISPOSAL
WEAR:
Rubber gloves, face shield and laboratory coat. A body shield
should be available for the more active agents. Replace the face
shield with self contained breathing apparatus for such agents
as chlorine and bromine.
SPILLS:
1. Gas leak - if the valve is leaking because it cannot be
closed, the gas can be bubbled through a reducer (sodium
sulphite) and excess sodium bicarbonate solution. Be sure to
include a trap in the line to prevent the solution being sucked
back into the cylinder. If this cannot be done the cylinder
should be placed in or adjacent to a fume hood and left to bleed
off. If the leak is in the valve assembly, a plastic bag can be
fastened over the head of the cylinder which can then be taken
outside or to a fume hood.
2. Liquid or solid - cover with a reducer (sodium thiosulphate,
a bisulphite or a ferrous salt not carbon, sulphur or strong
reducing agent). Mix well and spray with water. A sulphite or a
ferrous salt will require addition of 3M sulphuric acid to
promote a rapid reduction. Scoop the slurry into a container of
water and neutralise with soda ash. Discharge to sewer with a
large excess of water. Wash the site thoroughly with a soap
solution containing some reducer.
PACKAGE LOTS:
Add to a large volume of concentrated solution of reducer
(sodium thiosulphate, a bisulphite or a ferrous salt and acidify
with 3M sulphuric acid). When the reduction is completed add
soda ash or dilute hydrochloric acid to neutralise the solution.
Discharge to sewer with a large excess of water.
ENVIRONMENT
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