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DRAFT <br /> Bentonite Revision Date 09-Feb-2015 <br /> Respiratory Protection Follow the OSHA respirator regulations found in 29 CFR 1910.134 or European Standard <br /> EN 149. Use a NIOSH/MSHA or European Standard EN 149 approved respirator if <br /> exposure limits are exceeded or if irritation or other symptoms are experienced. <br /> Hygiene Measures Handle in accordance with good industrial hygiene and safety practice. <br /> 9. Physical and chemical properties <br /> Physical State Powder Solid <br /> Appearance Beige <br /> Odor Odorless <br /> Odor Threshold No information available <br /> pH No information available <br /> Melting Point/Range No data available <br /> Boiling Point/Range No information available <br /> Flash Point No information available <br /> Evaporation Rate No information available <br /> Flammability(solid,gas) No information available <br /> Flammability or explosive limits <br /> Upper No data available <br /> Lower No data available <br /> Vapor Pressure No information available <br /> Vapor Density No information available <br /> Relative Density No information available <br /> Solubility Insoluble in water <br /> Partition coefficient; n-octanol/water No data available <br /> Autoignition Temperature No information available <br /> Decomposition Temperature No information available <br /> Viscosity No information available <br /> 10. Stability and reactivity <br /> Reactive Hazard None known, based on information available <br /> Stability Stable under recommended storage conditions. Hygroscopic. Moisture sensitive. <br /> Conditions to Avoid Incompatible products. Excess heat.Avoid dust formation. Exposure to moist air or water. <br /> Incompatible Materials Strong oxidizing agents, Strong acids <br /> Hazardous Decomposition Products Thermal decomposition can lead to release of irritating gases and vapors <br /> Hazardous Polymerization Hazardous polymerization does not occur. <br /> Hazardous Reactions None under normal processing. <br /> 11. Toxicological information <br /> Acute Toxicity <br /> Component Information <br /> Component LD50 Oral LD50 Dermal LC50 Inhalation <br /> Bentonite 5000 mg/kg (Rat) Not listed Not listed <br /> Toxicologically Synergistic No information available <br /> Products <br /> Delayed and immediate effects as well as chronic effects from short and long-term exposure <br /> Irritation Irritating to eyes, respiratory system and skin <br /> Sensitization No information available <br /> Page 4/7 <br />