ABC of Safety in the Biological Sciences
QUINOL [C6H4(OH)2]
SYNONYMS
Hydroquinone, 1,4dihydroxybenzene.
GENERAL PRECAUTIONS
Avoid skin and eye contact.
Avoid inhalation or ingestion of the powder.
Keep away from heat.
Keep away from oxidising materials.
Keep the lid tightly closed.
Wash hands thoroughly after handling.
CHARACTERISTICS
Colourless to cream crystals or powder, no odour.
HEALTH HAZARD DATA
Hydroquinone is a toxic substance which may cause dizziness,
nausea, vomiting, headache, cyanosis, delirium and ultimately
collapse. It is a skin and eye irritant and skin contact may
cause dermatitis.
TREATMENTS
Skin immediately wash the affected area with large amounts of
water until all evidence of the chemical has been removed
(approximately 15 minutes). If irritation persists or dermatitis
develops seek medical attention.
Eyes immediately wash the affected eye with large amounts of
water until all evidence of the chemical has been removed
(approximately 15 minutes). If irritation persists seek
immediate medical attention.
Inhalation remove from the area of exposure to fresh air. If
breathing has ceased apply artificial respiration. Keep warm and
allow to rest. If signs of toxicity develop seek medical
attention.
Ingestion wash the mouth thoroughly with water and give plenty
of water or milk to drink. Seek immediate medical attention.
INCOMPATIBILITY
Heating produces toxic fumes of carbon.
Quinol is incompatible with oxidising materials.
Slowly oxidises in air, becoming brown in colour.
Slowly oxidises in water to give a brown solution.
STORAGE
Store in a tightly sealed container in a cool, dry atmosphere
away from heat.
HANDLING
Use a fume hood to keep the level of exposure below the
recommended threshold limit, ie. 2 mg/m3. Wear
protective clothing. A long sleeved laboratory coat or gown,
rubber gloves, safety goggles and a face mask as a minimum
standard.
DISPOSAL
WEAR:
Rubber gloves, face shield and laboratory coat. Have an all
purpose canister respirator available.
SPILLS:
A gas leak: keep the concentration of the gas below the
explosive mixture range by forced ventilation. Remove the tank
to an open area and allow dissipation to the atmosphere. Attempt
to cap the valve outlet and return the tank to the supplier.
A liquid: absorb on paper. Evaporate in an iron pan in a flame
proof fume hood then burn the paper.
A solid: sweep on to paper and place in an iron pan in a fume
hood. Burn the paper and compound.
PACKAGE LOTS:
A gas leak: pipe the gas into an incinerator or lower into a pit
and allow to burn.
A liquid: atomise into an incinerator. Combustion may be
improved by mixing with a more flammable solvent.
A solid: make up packages in paper or other flammable material.
Burn in the incinerator. Or the solid may be dissolved in a
flammable solvent and sprayed into a fire chamber.
ENVIRONMENT:
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