ABC of Safety in the Biological Sciences
POTASSIUM (K)
SYNONYMS
None known.
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 all substances.
Store under paraffin oil or kerosene and keep the container
tightly sealed.
Wash hands thoroughly after handling.
CHARACTERISTICS
Corrosive fumes of potassium hydroxide. Light, silvery white,
soft metal which reacts violently with water with combustion and
formation of combustible gas (hydrogen) and corrosive fumes of
potassium hydroxide.
HEALTH HAZARD DATA
Corrosive to eyes, skin and respiratory tract. Inhalation of
vapours and/or fumes may cause shortness of breath and laboured
breathing. Skin contact causes redness, pain and skin burns. Eye
contact causes redness, pain and blurred vision. Ingestion
causes sore throat, vomiting and abdominal pain.
TREATMENTS
Skin immediately remove contaminated clothing and 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. Wash contaminated clothing before reuse.
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 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.
INCOMPATIBILITY
Keep separate from all substances, especially water. STORAGE
Store in a cool, dry atmosphere away from heat or ignition
sources.
HANDLING
Use a fume hood to minimise exposure to this substance. Wear
protective clothing. A long sleeved laboratory coat or gown,
rubber gloves, safety goggles and a face mask as a minimum
standard.
DISPOSAL
WEAR:
Leather gloves, large face shield and laboratory coat.
SPILLS:
Small: cover with excess soda ash or sodium bicarbonate. Mix and
add slowly to butyl alcohol. After 24 hours dilute and discharge
to sewer with a large excess of water.
Large: mix with dry soda ash or sodium bicarbonate. Scoop into a
dry bucket. in a remote area spread onto a large iron pan. Cover
with scrap wood, paper and ignite with a torch or fuse.
OR
burn in an open pit incinerator.
OR
direct dry steam on to the waste spread on a iron pan. Beware of
splatter.
WARNING:
Beware of possible violent reaction with water.
ENVIRONMENT:
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