ABC of Safety in the Biological Sciences
BOTTLES (Holding chemicals and solvents)
All bottles should be adequately labelled with their contents and
with the date of preparation or the date of first opening of the
- When filling empty bottles always allow 10% dead space for
expansion and safe pouring of the contents.
- Bottles should only be carried in specially designed holders
and when pouring the contents from the bottle, support the
bottle with both hands.
- Air sensitive liquids are best stored in sealed brown glass
bottles in a cool dark location.
- When bottles are opened many compounds release toxic gases
under pressure, e.g. those containing hydrogen chloride, bromine
and ammonia. A face mask, together with appropriate protective
clothing, should be worn and the bottle carefully opened beneath
a fume hood.
Many suppliers now offer plastic encapsulated winchester bottles
for corrosive chemicals which retain the contents should a breakage
occur. NEVER hold or carry a bottle by its neck.
Bretherick, L. (1986)
Hazards in the Chemical Laboratory, 4th Edition.
Royal Chemical Society, London.
BACK to the top
of the Glossary Contents List
BACK to the top of the Chemical