Riebeckite asbestos
Blue asbestos
Na2 Fe˛+3 Feł+2 Si8 O22 (OH)2
Molecular mass: 765.98
ICSC # 1314
CAS # 12001-28-4
RTECS # CI6479000
UN # 2212
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!
AVOID Exposure OF ADOLESCENTS AND CHILDREN!
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•Inhalation
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Cough.
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Local exhaust or breathing protection.
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•Skin
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Dry skin.
Corns.
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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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Redness.
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Safety spectacles,
or eye protection in combination with breathing protection.
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•Ingestion
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Do not eat, drink, or smoke during work.
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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.
Carefully collect remainder,
then remove to safe place.
Do NOT let this chemical enter the environment.
Chemical protection suit 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: II
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Important Data
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Physical State; Appearance:
FIBRES.
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; (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:
The substance
is irritating to
the skin
,
the eyes
,
the respiratory tract
.
Effects of Long-Term or Repeated Exposure:
Lungs may be affected by repeated or prolonged exposure to fibres
, resulting in fibrosis.
This substance is carcinogenic to humans.
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Physical
Properties
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Decomposes below melting point at 1200°C
Relative density (water = 1): 3.3-3.4
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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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Smoking greatly enhances the risk of lung cancer.
Depending on the degree of exposure, periodic medical examination is indicated.
Do NOT take working clothes home.
Card has been partly updated in October 2004. See sections Occupational Exposure Limits, EU classification, Emergency Response.
Transport Emergency Card: TEC (R)-90S2212
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ADDITIONAL INFORMATION
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ICSC: 1314
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CROCIDOLITE
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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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