Document pppNk0GzRDrwx65zL2rRygEwB

DIATOMACEOUS EARTH (UNCALCINED) CAS No: 61790-53-2 RTECS No: VV7311000 Amorphous diatomaceous earth Diatomite, uncalcined Diatomaceous earth, natural SiO2 Molecular mass: 60.8 TYPES OF HAZARD/ EXPOSURE FIRE ACUTE HAZARDS/SYMPTOMS Not combustible. PREVENTION EXPLOSION 0248 March 2001 FIRST AID/FIRE FIGHTING In case of fire in the surroundings: all extinguishing agents allowed. EXPOSURE Inhalation Cough. Skin Dry skin. Roughness. Eyes Redness. Pain. Ingestion PREVENT DISPERSION OF DUST! Local exhaust or breathing protection. Fresh air, rest. Refer for medical attention. Protective gloves. Rinse and then wash skin with water and soap. Safety goggles. First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor. Do not eat, drink, or smoke during work. SPILLAGE DISPOSAL PACKAGING & LABELLING Sweep spilled substance into containers; if appropriate, moisten first to prevent dusting. Wash away remainder with plenty of water. (Extra personal protection: P1 filter respirator for inert particles.) EMERGENCY RESPONSE STORAGE |pcs International Programme on Chemical Safety fa>\ tUtNxtESTPo Prepared in the context of cooperation between the International Programme on Chemical Safety and the European Commission IPCS 2000 SEE IMPORTANT INFORMATION ON THE BACK. 0248 DIATOMACEOUS EARTH (UNCALCINED) Physical State; Appearance WHITE POWDER IMPORTANT DATA Routes of exposure The substance can be absorbed into the body by inhalation. Physical dangers Heating the material at high temperatures results in the formation of crystalline silica (see ICSC 0809 Cristobalite). Occupational exposure limits TLV (as silica amorphous): 10 mg/m3 E,I (ACGIH 2000). TLV (as silica amorphous): 3 mg/m3 E,R (ACGIH 2000). MAK: 4 mg/m3; respirable fraction (2000) Inhalation risk Evaporation at 20C is negligible; a harmful concentration of airborne particles can, however, be reached quickly when dispersed. Effects of long-term or repeated exposure The substance may have effects on the lungs, resulting in mild fibrosis (see Notes). Boiling point: 2200C Melting point: 1710C PHYSICAL PROPERTIES Density: 2.3 g/cm3 Solubility in water: none ENVIRONMENTAL DATA NOTES Literature suggests that the fibrosis may be due to crystalline contaminants. Depending on the degree of exposure, periodic medical examination is indicated. Another synonym is Kieselguhr. ADDITIONAL INFORMATION LEGAL NOTICE Neither the EC nor the IPCS nor any person acting on behalf of the EC or the IPCS is responsible for the use which might be made of this information IPCS 2000