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CHRYSOTILE
ICSC: 0014
Peer-Review Status: 12.11.2010 Validated
Asbestos, chrysotile
White asbestos
Serpentine chrysotile 
CAS #: 12001-29-5 RTECS #: CI6478500
UN #: 2590
EC #: 650-013-00-6
    Formula: Mg3Si2H4O9 / Mg3(Si2O5)(OH)4
Molecular mass: 554

TYPES OF HAZARD
/ EXPOSURE
ACUTE HAZARDS / SYMPTOMS PREVENTION FIRST AID / FIRE-FIGHTING
FIRE Not combustible.    In case of fire in the surroundings, use appropriate extinguishing media. 
EXPLOSION      
 
EXPOSURE   PREVENT DISPERSION OF DUST! AVOID ALL CONTACT!   
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
PACKAGING & 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.   
EC Classification
Symbol: T; R: 45-48/23; S: 53-45; Note: E 
UN Classification
UN Hazard Class: 9; UN Pack Group: III 
GHS Classification
Signal: Danger
May cause cancer
Causes damage to the lungs through prolonged or repeated exposure if inhaled 
cancer;health haz

EMERGENCY RESPONSE SAFE STORAGE
  Well closed. 

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

Physical dangers
 

Chemical dangers
 

Occupational exposure limits
TLV: 0.1f/cc as TWA; A1 (confirmed human carcinogen); (ACGIH 2004).
MAK: Carcinogen category: 1; (DFG 2004).
EU OEL ( selected):.
EU OEL ( selected): 0.1fibres/ml as TWA;. 

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

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

Effects of short-term exposure
 

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. 


PHYSICAL PROPERTIES ENVIRONMENTAL DATA
Melting point: No melting point; decomposes (see Notes)
Density: 2.2-2.6 g/cm³
Solubility in water: none 
 

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
 

IPCS
International
Programme on
Chemical Safety
WHO ILO EC Prepared in the context of cooperation between the International Programme on Chemical Safety and the European Commission
© IPCS 2004-2012
LEGAL NOTICE Neither the EC nor the IPCS nor any person acting on behalf of the EC or the IPCS is responsible for the use which might be made of this information.
    See Also:
       Toxicological Abbreviations