Asbestos, chrysotile
White asbestos
Serpentine chrysotile
Mg3Si2H4O9 / Mg3(Si2O5)(OH)4
Molecular mass: 277
ICSC # 0014
CAS # 12001-29-5
RTECS # CI6478500
UN # 2590
EC # 650-013-00-6
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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.
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In case of fire in the surroundings: use appropriate extinguishing media.
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Explosion
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Exposure
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PREVENT DISPERSION OF DUST!
AVOID ALL CONTACT!
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•Inhalation
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Cough.
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Breathing protection.
Closed system and ventilation.
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Fresh air, rest.
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•Skin
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Protective gloves.
Protective clothing.
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Remove contaminated clothes.
Rinse skin with plenty of water or shower.
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•Eyes
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Safety goggles
or
eye protection in combination with breathing protection if powder.
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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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Do not eat, drink, or smoke during work.
Wash hands before eating.
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Rinse mouth.
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Spillage Disposal
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Storage
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Packaging & Labelling
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Evacuate danger area!
Consult an expert!
Vacuum spilled material,
then remove to safe place.
Personal protection: complete protective clothing including self-contained breathing apparatus.
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Well closed.
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Note: E
T symbol
R: 45-48/23
S: 53-45
UN Hazard Class: 9
UN Packing Group: III
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Important Data
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Physical State; Appearance:
WHITE, GREY, GREEN OR YELLOWISH FIBROUS SOLID.
Physical Dangers:
Chemical Dangers:
Occupational Exposure Limits:
TLV: (For fibres longer than 5 um with an aspect ratio equal to or greater than: 3:1 as determined by the membrane filter method at 400-450X magnefication (4-mm objective) phase contrast elimination) 0.1 fibre/cc as TWA; A1 (confirmed human carcinogen); (ACGIH 2004).
MAK:
Carcinogen category: 1;
(DFG 2004).
EU OEL: 0.1 fibres/cc (EU 2003).
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Routes of Exposure:
The substance can be absorbed into the body
by inhalation.
Inhalation Risk:
Evaporation at 20°C is negligible; a harmful concentration of airborne particles can, however, be reached quickly.
Effects of Short-Term Exposure:
Effects of Long-Term or Repeated Exposure:
The substance may have effects on the
lungs
, resulting in pulmonary fibrosis and mesothelioma.
This substance is carcinogenic to humans.
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Physical
Properties
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Melting point (decomposes): see Notes
Density: 2.2-2.6
g/cm3
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Solubility in water:
none
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Environmental
Data
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N O T E S
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The substance is heat resistant up to 500°C and completely decomposed at temperatures of 1000°C.
Depending on the degree of exposure, periodic medical examination is indicated.
Do NOT take working clothes home.
The recommendations on this Card also apply to other forms of asbestos.
Avibest C, 7-450 asbestos, Calidria RG 144, Calidria RG 600, Calidria RG 100, Hooker no.1 chrysotile asbestos, K 6-30, Plastibest 20, RG 600, 5RO4, Sylodex, Cassiar AK, Cassiar A 65, Fritmag, P 3-50 and P 4-20 are trade names.
Other CAS number: 132207-32-0.Card has been partly updated in October 2004. See sections Occupational Exposure Limits, EU classification, Emergency Response.
Transport Emergency Card: TEC (R)-90S2590
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ADDITIONAL INFORMATION
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ICSC: 0014
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CHRYSOTILE
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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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