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Hydrochloric acid Revision Date 13-Oct-2023 <br /> 8. Exposure controls / personal protection <br /> Exposure Guidelines <br /> Component ACGIH TLV OSHA PEL NIOSH Mexico OEL TWA <br /> Hydrochloric acid Ceiling:2 ppm Ceiling:5 ppm IDLH:50 ppm Ceiling:2 ppm <br /> Ceiling:7 mg/m3 Ceiling:5 ppm <br /> (Vacated)Ceiling:5 ppm Ceiling:7 mg/m3 <br /> (Vacated)Ceiling:7 mg/m3 <br /> Leuend <br /> ACGIH-American Conference of Governmental Industrial Hygienists <br /> OSHA-Occupational Safety and Health Administration <br /> NIOSH: NIOSH- National Institute for Occupational Safety and Health <br /> Engineering Measures Ensure that eyewash stations and safety showers are close to the workstation location. <br /> Personal Protective Equipment <br /> Eye/face Protection Wear appropriate protective eyeglasses or chemical safety goggles as described by <br /> OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard <br /> EN166. <br /> Skin and body protection Wear appropriate protective gloves and clothing to prevent skin exposure. <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 /> Recommended Filter type: Particulates filter conforming to EN 143. or.Acid gases filter: Type E,Yellow. <br /> Hygiene Measures Handle in accordance with good industrial hygiene and safety practice. <br /> 9. Physical and chemical properties <br /> Physical State Liquid <br /> Appearance Colorless <br /> Odor pungent <br /> Odor Threshold No information available <br /> pH < 1 <br /> Melting Point/Range -35 °C / -31 °F <br /> Boiling Point/Range 57 °C / 135 °F @ 760 mmHg <br /> Flash Point No information available <br /> Evaporation Rate No information available <br /> Flammability(solid,gas) Not applicable <br /> Flammability or explosive limits <br /> Upper No data available <br /> Lower No data available <br /> Vapor Pressure 125 mbar @ 20°C <br /> Vapor Density 1.27 <br /> Specific Gravity 1.18 <br /> Solubility Soluble 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 1.8 mPa.s @ 15°C <br /> Molecular Formula HCI <br /> Page 4/9 <br />