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NIOSH

CROCIDOLITE

ICSC: 1314

Riebeckite asbestos
Blue asbestos
Na2 Fe2+3 Fe3+2 Si8 O22 (OH)2
Molecular mass: 765.98
ICSC # 1314 		CAS # 12001-28-4
RTECS # CI6479000
UN # 2212
EC # 650-013-00-6
November 27, 1998 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! AVOID EXPOSURE OF ADOLESCENTS AND CHILDREN!

•INHALATION Cough.
Local exhaust or breathing protection.

•SKIN Dry skin. Corns.
Protective gloves. Protective clothing.
Remove contaminated clothes. Rinse skin with plenty of water or shower.
•EYES Redness.
Safety spectacles, or eye protection in combination with breathing protection.

•INGESTION
Do not eat, drink, or smoke during work.

SPILLAGE DISPOSAL

STORAGE

PACKAGING & LABELLING

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.
Well closed.

Note: E
T symbol
R: 45-48/23
S: 53-45
UN Hazard Class: 9
UN Packing Group: II
ICSC: 1314 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.

CROCIDOLITE

ICSC: 1314

I

M

P

O

R

T

A

N

T


D

A

T

A

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).


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.

PHYSICAL
PROPERTIES

Decomposes below melting point at 1200°C
Relative density (water = 1): 3.3-3.4
Solubility in water:
none

ENVIRONMENTAL
DATA


N O T E S

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

ADDITIONAL INFORMATION



ICSC: 1314 CROCIDOLITE
(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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