Magnesium sulphate
MgSO4
Molecular mass: 120.4
ICSC # 1197
CAS # 7487-88-9
RTECS # OM4500000
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Types of Hazard/ Exposure
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Acute Hazards/ Symptoms
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Prevention
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First Aid/
Fire Fighting
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FIRE
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Not combustible.
Gives off irritating or toxic fumes (or gases) in a fire.
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In case of fire in the surroundings: all extinguishing agents allowed.
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Explosion
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Exposure
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•Inhalation
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Local exhaust.
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Fresh air, rest.
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•Skin
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Rinse skin with plenty of water or shower.
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•Eyes
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Safety spectacles.
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First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
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•Ingestion
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Abdominal cramps.
Diarrhoea.
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Do not eat, drink, or smoke during work.
Wash hands before eating.
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Rinse mouth.
Give plenty of water to drink.
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Spillage Disposal
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Storage
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Packaging & Labelling
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Sweep spilled substance into containers; if appropriate, moisten first to prevent dusting.
Then wash away with plenty of water
(extra personal protection: P1 filter respirator for inert particles).
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Dry.
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Important Data
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Physical State; Appearance:
WHITE CRYSTALS
OR POWDER
WITH BITTER SALINE TASTE.
Physical Dangers:
Chemical Dangers:
The substance decomposes
on heating or
on burning
giving off toxic and corrosive vapours such as sulfur oxides.
Occupational Exposure Limits:
TLV not established.
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Routes of Exposure:
The substance can be absorbed into the body
by inhalation and
by ingestion.
Inhalation Risk:
Effects of Short-Term Exposure:
Effects of Long-Term or Repeated Exposure:
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Physical
Properties
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Decomposes below melting point: 1124°C
Relative density (water = 1): 2.65
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Solubility in water: good
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Environmental
Data
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N O T E S
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Magnesium sulfate heptahydrate is also known as Epsom salts or bitter salts.
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ADDITIONAL INFORMATION
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ICSC: 1197
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MAGNESIUM SULFATE
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(C) IPCS, CEC, 1994
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IMPORTANT LEGAL NOTICE:
Neither NIOSH, the CEC or the IPCS nor any person acting on behalf of NIOSH,
the CEC or the IPCS is responsible for the use which might be made of this
information. This card contains the collective views of the IPCS Peer Review Committee and may
not reflect in all cases all the detailed requirements included in national legislation
on the subject. The user should verify compliance of the cards with the relevant legislation
in the country of use.
The only modifications made to produce the U.S. version is inclusion of the OSHA PELs, NIOSH RELs and NIOSH IDLH values.
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