ABC of Safety in the Biological Sciences
PHOSPHOMOLYBDIC ACID (12MoO3.H3PO4.24H2O)
SYNONYMS
Dodecamolybdophosphoric acid.
GENERAL PRECAUTIONS
Avoid skin and eye contact.
Avoid inhalation or ingestion of the powder.
Wash hands thoroughly after handling.
CHARACTERISTICS
Yellow crystals.
HEALTH HAZARD DATA
This substance is a skin and eye irritant and is toxic if
inhaled or ingested. Molybdenum compounds are rapidly excreted
from the body so that small doses rarely cause more than
discomfort.
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
irritation persists 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 or discomfort persist
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. Seek immediate medical advice.
Ingestion wash out the mouth thoroughly with water and give
water to drink. Seek immediate medical advice.
INCOMPATIBILITY
None known.
STORAGE
Store in a cool, dry atmosphere.
HANDLING
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.
DISPOSAL
WEAR:
Rubber gloves, safety glasses and laboratory coat.
SPILLS:
Solid: collect in a beaker, dissolve in a large amount of water.
Add soda ash, mix and neutralise with 6M hydrochloric acid and
discharge to sewer with large excess of water.
Solution: cover with soda ash, mix and scoop into a beaker of
water. Neutralise with 6M hydrochloric acid and discharge to
sewer with a large excess of water. If a spill contains a
fluoride, add slaked lime in addition to the above treatment.
PACKAGE LOTS:
Add slowly to a large container of water. Stir in a slight
excess of soda ash. If fluoride is present add slaked lime. Let
stand for 24 hours. Decant or siphon into another container and
neutralise with 6M hydrochloric acid. Discharge to sewer with a
large excess of water. The sludge may be added to land fill.
ENVIRONMENT:
BACK to the
top of the Glossary Contents List
BACK to the top of the
Chemical Contents List