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International Chemical Safety Cards <br /> BENTONITE; ICSC: 0384 <br /> PHYSICAL STATE;APPEARANCE: ROUTES OF EXPOSURE: <br /> I ODOURLESS GRANULES OR POWDER The substance can be absorbed into the body <br /> M <br /> IN VARIABLE COLOUR. by inhalation of dust. <br /> PHYSICAL DANGERS: INHALATION RISK: <br /> P Evaporation at 20°C is negligible;a harmful <br /> O concentration of airborne particles can, <br /> CHEMICAL DANGERS: however,be reached quickly. <br /> The substance is a weak base in suspension in <br /> R water. EFFECTS OF SHORT-TERM <br /> T EXPOSURE: <br /> OCCUPATIONAL EXPOSURE LIMITS <br /> A ' (OELs): <br /> TLV not established. EFFECTS OF LONG-TERM OR <br /> N REPEATED EXPOSURE: <br /> The substance may have effects on the lungs, <br /> T resulting in silicosis due to the presence of <br /> crystalline silica(see ICSC#0808). <br /> D <br /> A <br /> T <br /> A <br /> i <br /> PHYSICAL �Relative density(water= 1):2.5 Solubility in water: none <br /> f PROPERTIES <br /> ENVIRONMENTAL <br /> DATA <br /> r— <br /> NOTES <br /> Bentonites are aluminate silicate and can contain crystalline silica.The content varies widely from less than 1%to <br /> about 24%. <br /> ADDITIONAL INFORMATION <br /> ICSC 0384 BENTONITE <br /> ©IPCS,CEC,1993 <br /> Frn <br /> the CEC or the IPCS nor any person acting on behalf of the CEC or the IPCS is <br /> IMPORTANT ible for the use which might be made of this information.This card contains the collectiveLEGAL f the IPCS Peer Review Committee and may not reflect in all cases all the detailedNOTICE: ments included in national legislation on the subject.The user should verify compliance ofs with the relevant legislation in the country of use. <br /> Bentonite msds.doc Page 2 26 April 2000 <br />