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NIOSH

CHRYSOTILE

ICSC: 0014

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
March 22, 1999 Validated

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.
Breathing protection. Closed system and ventilation.
Fresh air, rest.
•SKIN
Protective gloves. Protective clothing.
Remove contaminated clothes. Rinse skin with plenty of water or shower.
•EYES
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 take to a doctor.
•INGESTION
Do not eat, drink, or smoke during work. Wash hands before eating.
Rinse mouth.

SPILLAGE DISPOSAL

STORAGE

PACKAGING & LABELLING

Evacuate danger area! Consult an expert! Vacuum spilled material, then remove to safe place. Personal protection: complete protective clothing including self-contained breathing apparatus.
Well closed.

Note: E
T symbol
R: 45-48/23
S: 53-45
UN Hazard Class: 9
UN Packing Group: III
ICSC: 0014 Prepared in the context of cooperation between the International Programme on Chemical Safety & the Commission of the European Communities (C) IPCS CEC 1994. No modifications to the International version have been made except to add the OSHA PELs, NIOSH RELs and NIOSH IDLH values.

CHRYSOTILE

ICSC: 0014

I

M

P

O

R

T

A

N

T


D

A

T

A

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).


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.

PHYSICAL
PROPERTIES

Melting point (decomposes): see Notes
Density: 2.2-2.6
g/cm3
Solubility in water:
none

ENVIRONMENTAL
DATA


N O T E S

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

ADDITIONAL INFORMATION



ICSC: 0014 CHRYSOTILE
(C) IPCS, CEC, 1994
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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