Hydrated aluminium silicate
China clay
Argilla
H2Al2Si2O8 H2O
Molecular mass: 258 (approx)
ICSC # 1144
CAS # 1332-58-7
RTECS # GF1670500
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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!
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•Inhalation
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Avoid inhalation of fine dust and mist.
Local exhaust or breathing protection.
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Fresh air, rest.
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•Skin
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Protective gloves.
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Rinse and then wash skin with water and soap.
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•Eyes
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Safety spectacles.
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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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Spillage Disposal
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Storage
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Packaging & Labelling
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Sweep spilled substance into covered containers; if appropriate, moisten first to prevent dusting.
Personal protection: P1 filter respirator for inert particles.
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Important Data
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Physical State; Appearance:
WHITE
POWDER.
Physical Dangers:
Chemical Dangers:
Occupational Exposure Limits:
TLV: (particulate matter containing no asbestos and <1% crystalline silica)
(Respirable fraction)
2 mg/m3 as TWA; A4 (not classifiable as a human carcinogen); (ACGIH 2008).
OSHA PEL†: TWA 15 mg/m3 (total) TWA 5 mg/m3 (resp)
NIOSH REL: TWA 10 mg/m3 (total) TWA 5 mg/m3 (resp)
NIOSH IDLH: N.D. See: IDLH INDEX
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Routes of Exposure:
The substance can be absorbed into the body
by inhalation of its aerosol.
Inhalation Risk:
Evaporation at 20°C is negligible; a nuisance-causing concentration of airborne particles can, however, be reached quickly on spraying or when dispersed, especially if powdered.
Effects of Short-Term Exposure:
Effects of Long-Term or Repeated Exposure:
Lungs may be affected by repeated or prolonged exposure to dust particles.
The substance may have effects on the
lungs
, resulting in fibrosis (kaolinosis) and impaired functions.
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Physical
Properties
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Relative density (water = 1): 2.6
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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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This card applies to kaolin containing <1% crystalline silica. If kaolin contains more than 1% crystalline silica,
fusion temperature 1785°C.
Depending on the degree of exposure, periodic medical examination is suggested.
Fitrol, Glomax, Kaophills-2 are trade names.
See also ICSC0808 Quartz.
Card has been partly updated in April 2005. See sections Occupational Exposure Limits, EU classification, Emergency Response.
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ADDITIONAL INFORMATION
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ICSC: 1144
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KAOLIN
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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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