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CHRYSOTILEICSC: 0014
November 2010
CAS #: 12001-29-5Asbestos, chrysotile
White asbestos
Serpentine chrysotile
UN #: 2590

  ACUTE HAZARDS PREVENTION FIRE FIGHTING
FIRE & EXPLOSION Not combustible.        In case of fire in the surroundings, use appropriate extinguishing media.   

 PREVENT DISPERSION OF DUST! AVOID ALL CONTACT!  
  SYMPTOMS ACUTE HAZARDS FIRST AID
Inhalation Cough.  Use breathing protection. Use closed system and ventilation.  Fresh air, rest. 
Skin   Protective gloves. Protective clothing.  Remove contaminated clothes. Rinse skin with plenty of water or shower. 
Eyes   Wear safety goggles or eye protection in combination with breathing protection if powder.  First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention. 
Ingestion   Do not eat, drink, or smoke during work. Wash hands before eating.  Rinse mouth. 

SPILLAGE DISPOSAL CLASSIFICATION & LABELLING
Evacuate danger area! Consult an expert! Personal protection: complete protective clothing including self-contained breathing apparatus. Vacuum spilled material with specialist equipment. Then store and dispose of according to local regulations. 

According to UN GHS Criteria

cancer;health haz
DANGER
May cause cancer
Causes damage to the lungs through prolonged or repeated exposure if inhaled 

Transportation
UN Classification
UN Hazard Class: 9; UN Pack Group: III 

STORAGE
Well closed. 
PACKAGING
 
CHRYSOTILE ICSC: 0014
PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
WHITE, GREY, GREEN OR YELLOWISH FIBROUS SOLID. 

Physical dangers
 

Chemical dangers
 

Formula: Mg3Si2H4O9 / Mg3(Si2O5)(OH)4
Molecular mass: 554
Melting point: No melting point; decomposes (see Notes)
Density: 2.2-2.6 g/cm³
Solubility in water: none 


EXPOSURE & HEALTH EFFECTS

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

Effects of short-term exposure
 

Inhalation risk
A harmful concentration of airborne particles can be reached quickly when dispersed. 

Effects of long-term or repeated exposure
Repeated or prolonged inhalation may cause asbestosis (fibrosis of the lungs), pleural plaques, thickening and effusions. This substance is carcinogenic to humans. This substance causes cancer of the lung, mesothelioma, cancer of the larynx, and cancer of the ovary in humans. There is limited evidence that this substance causes colorectal cancer or cancer of the pharynx or stomach. 


Occupational exposure limits
TLV: 0.1 f/cc as TWA; A1 (confirmed human carcinogen).
MAK: carcinogen category: 1.
EU-OEL: 0.1 fibres/ml as TWA 

ENVIRONMENT
 

NOTES
The substance is heat resistant up to 500°C and completely decomposed at temperatures of 1000°C.
NEVER use a domestic-type vacuum cleaner to vacuum the substance, only use specialist equipment.
Depending on the degree of exposure, periodic medical examination is suggested.
Do NOT take working clothes home.
The recommendations on this Card also apply to other forms of asbestos.
Other CAS number: 132207-32-0.
The TLV value applies to fibres longer than 5µm with an aspect ratio equal to or greater than 3:1 as determined by the membrane filter method at 400-450X magnification (4-mm objective) using phase-contrast illumination. 

ADDITIONAL INFORMATION
  EC Classification
Symbol: T; R: 45-48/23; S: 53-45; Note: E 

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    See Also:
       Toxicological Abbreviations