Celestite
Sulfuric acid, strontium salt (11)
Celestine
Strontium sulphate
SrSO4
Molecular mass: 183.7
ICSC # 1696
CAS # 7759-02-6
RTECS # WT1210000
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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 exstiguishing agents allowed
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Explosion
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Exposure
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PREVENT DISPERSION OF DUST!
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•Inhalation
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Cough.
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Avoid inhalation of dust.
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Fresh air, rest.
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•Skin
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Protective gloves.
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Rinse and then wash skin with water and soap.
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•Eyes
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Redness.
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Safety goggles
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Rinse with plenty of water (remove contact lenses if easily possible).
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•Ingestion
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Do not eat, drink, or smoke during work.
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Rinse mouth.
Give one or two glasses 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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Personal protection: particulate filter adapted to the airborne concentration of the substance.
Sweep spilled substance into containers; if appropriate, moisten first to prevent dusting.
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Important Data
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Physical State; Appearance:
ODOURLESS
WHITE
CRYSTALLINE POWDER
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Physical Dangers:
Chemical Dangers:
The substance decomposes
on heating slowly >1580°C
producing
toxic and corrosive fumes
including
sulfur oxides
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Occupational Exposure Limits:
TLV not established.
MAK: IIb (not established but data is available) (DFG 2006).
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Routes of Exposure:
Inhalation Risk:
A nuisance-causing concentration of airborne particles can be reached quickly.
Effects of Short-Term Exposure:
May cause mechanical irritation the eyes and the respiratory tract.
Effects of Long-Term or Repeated Exposure:
See Notes.
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Physical
Properties
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Melting point: 1605°C
Density: 3.96
g/cm3
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Solubility in water, g/100 ml at 25°C: 0.0135
(very poor)
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Environmental
Data
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N O T E S
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Strontium ion has effects on the calcium content of the bones and teeth, but data concerning harmful doses of strontium sulfate are inadequate. Occurs naturally in environment as the mineral celestine.
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ADDITIONAL INFORMATION
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ICSC: 1696
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STRONTIUM 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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