ABC of Safety in the Biological Sciences
SODIUM DIHYDROGEN ORTHOPHOSPHATE (NaH2PO4.2H2O)
Sodium biphosphate, sodium phosphate, monobasic.
Avoid eye contact.
Avoid inhalation or ingestion of the powder.
Wash hands thoroughly after handling.
Colourless crystals or crystalline powder.
HEALTH HAZARD DATA
This substance is an eye and respiratory tract irritant. There is only slight toxicity if ingested, however if large amounts are ingested then it may cause metabolic disturbances.
Skin 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).
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 medical attention.
Inhalation remove from the area of exposure to fresh air. Keep warm and allow to rest. If irritation persists seek medical attention.
Ingestion wash out the mouth thoroughly with water and give water to drink. Seek immediate medical advice.
Store in a cool, dry atmosphere.
Wear protective clothing to avoid eye contact and inhalation. A long sleeved laboratory coat or gown, rubber gloves, safety goggles and a face mask as a minimum standard.
Rubber gloves, safety glasses and laboratory coat.
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.
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.