Not combustible. Gives off irritating or toxic fumes (or gases) in a fire.
In case of fire in the surroundings, use appropriate extinguishing media.
Avoid inhalation of dust.
Fresh air, rest.
Rinse skin with plenty of water or shower.
Wear safety spectacles.
Rinse with plenty of water (remove contact lenses if easily possible).
Abdominal pain. Diarrhoea. Vomiting.
Do not eat, drink, or smoke during work.
Rinse mouth. Give one or two glasses of water to drink.
CLASSIFICATION & LABELLING
Personal protection: particulate filter respirator adapted to the airborne concentration of the substance. Sweep spilled substance into covered containers. If appropriate, moisten first to prevent dusting. Store and dispose of according to local regulations. Wash away remainder with plenty of water.
According to UN GHS Criteria
Transportation UN Classification
PHYSICAL & CHEMICAL INFORMATION
Physical State; Appearance HYGROSCOPIC ODOURLESS WHITE CRYSTALS OR POWDER.
Chemical dangers Decomposes on heating. This produces toxic and corrosive fumes including sulfur oxides.
Molecular mass: 120.4
Decomposes at 1124°C Density: 2.66 g/cm³ Solubility in water, g/100ml at 20°C: 30 (good)
EXPOSURE & HEALTH EFFECTS
Routes of exposure The substance can be absorbed into the body by inhalation of its aerosol and by ingestion.
Effects of short-term exposure The substance is mildly irritating to the eyes and respiratory tract.
Inhalation risk A harmful concentration of airborne particles can be reached quickly , especially if powdered.
Effects of long-term or repeated exposure
OCCUPATIONAL EXPOSURE LIMITS
Magnesium sulfate heptahydrate is also known as Epsom salt or bitter salt. Other CAS numbers: 14168-73-1 (monohydrate); 17830-05-6 (dihydrate); 15320-30-6 (trihydrate); 15244-29-8 (tetrahydrate); 17830-17-0 (pentahydrate); 17830-18-1 and 13778-97-7 (hexahydrate); 10034-99-8 (heptahydrate); 22189-08-8 (x-hydrate).
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