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MAGNESIUM STEARATEICSC: 1403
Octadecanoic acid, magnesium salt
Dibasic magnesium stearate
October 2001
CAS #: 557-04-0
EC Number: 209-150-3

  ACUTE HAZARDS PREVENTION FIRE FIGHTING
FIRE & EXPLOSION Combustible. Gives off irritating or toxic fumes (or gases) in a fire.  Finely dispersed particles form explosive mixtures in air.  NO open flames.  Closed system, dust explosion-proof electrical equipment and lighting. Prevent deposition of dust.  In case of fire in the surroundings, use appropriate extinguishing media.   

 PREVENT DISPERSION OF DUST!  
  SYMPTOMS PREVENTION FIRST AID
Inhalation Cough.  Use local exhaust.  Fresh air, rest. 
Skin   Protective gloves.   
Eyes   Wear safety spectacles.  First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention. 
Ingestion Vomiting.  Do not eat, drink, or smoke during work. Wash hands before eating.  Rinse mouth. Rest. 

SPILLAGE DISPOSAL CLASSIFICATION & LABELLING
Sweep spilled substance into covered containers. If appropriate, moisten first to prevent dusting. Personal protection: particulate filter respirator adapted to the airborne concentration of the substance. 

According to UN GHS Criteria

 

Transportation
UN Classification
 

STORAGE
 
PACKAGING
 
MAGNESIUM STEARATE ICSC: 1403
PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
WHITE POWDER. 

Physical dangers
Dust explosion possible if in powder or granular form, mixed with air. If dry, it can be charged electrostatically by swirling, pneumatic transport, pouring, etc. 

Chemical dangers
Decomposes on burning. This produces irritating fumes. 

Formula: C36H70MgO4 / Mg(C18H35O2)2
Molecular mass: 591.3
Melting point: 88°C
Density: 1.02 g/cm³
Solubility in water: none
Flash point: see Notes 


EXPOSURE & HEALTH EFFECTS

Routes of exposure
The substance can be absorbed into the body by inhalation. 

Effects of short-term exposure
 

Inhalation risk
A nuisance-causing concentration of airborne particles can be reached quickly when dispersed. 

Effects of long-term or repeated exposure
 


OCCUPATIONAL EXPOSURE LIMITS
TLV: (inhalable fraction): 10 mg/m3, as TWA.
TLV: (respirable fraction): 3 mg/m3, as TWA.
TLV: A4 (not classifiable as a human carcinogen) 

ENVIRONMENT
 

NOTES
The substance is combustible but no flash point is available in literature. 

ADDITIONAL INFORMATION
  EC Classification
 

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    See Also:
       Toxicological Abbreviations