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U.S. SILICA COMPANY <br /> Safety Data Sheet <br /> Silica Sand or Ground Silica Page 2 of 9 <br /> 3. COMPOSITION/INFORMATION ON INGREDIENTS <br /> Component CAS No. Percent <br /> Crystalline Silica(quartz) 14808-60-7 95-99.9 <br /> 4. FIRST-AID MEASURES <br /> Inhalation: First aid is not generally required. If irritation develops from breathing dust,move the person from <br /> the overexposure and seek medical attention if needed. <br /> Skin contact: First aid is not required. <br /> Eye contact: Wash immediately with plenty of water. Do not rub eyes. If irritation persists, seek medical <br /> attention. <br /> Ingestion: First aid is not required. <br /> Most important symptoms/effects,acute and delayed: Particulates may cause abrasive eye injury. Inhalation <br /> of dust may cause respiratory tract irritation. Symptoms of exposure may include cough, sore throat, nasal <br /> congestion, sneezing,wheezing and shortness of breath. Prolonged inhalation of respirable crystalline silica <br /> above certain concentrations may cause lung diseases, including silicosis and lung cancer. <br /> Indication of immediate medical attention and special treatment,if necessary: Immediate medical attention <br /> is not required. <br /> 5. FIRE-FIGHTING MEASURES <br /> Suitable(and unsuitable)extinguishing media: Use extinguishing media appropriate for surrounding fire. <br /> Specific hazards arising from the chemical: Product is not flammable, combustible or explosive. <br /> Special protective equipment and precautions for fire-fighters: None required. <br /> 6. ACCIDENTAL RELEASE MEASURES <br /> Personal precautions,protective equipment, and emergency procedures: Wear appropriate protective <br /> clothing and respiratory protection(see Section 8).Avoid generating airborne dust during clean-up. <br /> Environmental precautions:No specific precautions. Report releases to regulatory authorities if required by <br /> local, state and federal regulations. <br /> Methods and materials for containment and cleaning up: Avoid dry sweeping. Do not use compressed air to <br /> clean spilled sand or ground silica.Use water spraying/flushing or ventilated or HEPA filtered vacuum cleaning <br /> system, or wet before sweeping. Dispose of in closed containers. <br /> 7. HANDLING AND STORAGE <br /> Precautions for safe handling: <br /> Avoid generating dust. Do not breathe dust. Do not rely on your sight to determine if dust is in the air. <br /> Respirable crystalline silica dust may be in the air without a visible dust cloud.Use adequate exhaust ventilation <br /> and dust collection to reduce respirable crystalline silica dust levels to below the permissible exposure limit <br /> ("PEL"). Maintain and test ventilation and dust collection equipment. Use all available work practices to control <br /> dust exposures, such as water sprays. Practice good housekeeping. Do not permit dust to collect on walls, floors, <br /> sills, ledges,machinery, or equipment. Keep airborne dust concentrations below permissible exposure limits. <br /> Date of preparation/revision: May 4, 2015 <br />