Sodium pyrophosphate Pyrophosphoric acid, tetrasodium salt
CAS #: 7722-88-5
EC Number: 231-767-1
FIRE & EXPLOSION
Not combustible. Gives off irritating or toxic fumes (or gases) in a fire.
In case of fire in the surroundings, use appropriate extinguishing media.
PREVENT DISPERSION OF DUST!
Cough. Sore throat.
Use ventilation (not if powder).
Fresh air, rest. Refer for medical attention.
Remove contaminated clothes. Rinse and then wash skin with water and soap.
Wear safety spectacles.
First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention.
Nausea. Vomiting. Diarrhoea.
Do not eat, drink, or smoke during work.
Rinse mouth. Refer for medical attention .
CLASSIFICATION & LABELLING
Sweep spilled substance into covered containers. If appropriate, moisten first to prevent dusting. Wash away remainder with plenty of water. Personal protection: particulate filter respirator adapted to the airborne concentration of the substance.
According to UN GHS Criteria
Transportation UN Classification
PHYSICAL & CHEMICAL INFORMATION
Physical State; Appearance ODOURLESS COLOURLESS OR WHITE CRYSTALS OR POWDER.
Chemical dangers Decomposes on burning. The solution in water is a weak base.
Molecular mass: 266
Melting point: 988°C See Notes. Relative density (water = 1): 2.5
EXPOSURE & HEALTH EFFECTS
Routes of exposure The substance can be absorbed into the body by inhalation of dust and by ingestion.
Effects of short-term exposure The substance is irritating to the eyes, skin and respiratory tract.
Inhalation risk Evaporation at 20°C is negligible; a harmful concentration of airborne particles can, however, be reached quickly , especially if powdered.
Effects of long-term or repeated exposure
OCCUPATIONAL EXPOSURE LIMITS
Other melting points: 880°C (powder).
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