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CM0000560 <br />Page 4. • <br />Section 8: EXPOSURE CONTROLS, PERSONAL PROTECTION (Cont.) <br />8.3 EYE PROTECTION: Chemical goggles and preferably a full face shield. Requirements will vary <br />dependent upon work environment conditions and material handling practices. <br />Maintain an eyewash/safety shower in immediate work areas. <br />8.4 EXPOSURE GUIDELINES: <br />OSHA ACGIH <br />TWA STEL TLV STEL <br />SODIUM HYDROXIDE 2 mg/m3 (ceiling) 2 mg/m3 <br />HYDROGEN SULFIDE 20 ppm (ceiling) 10 ppm (ceiling) <br />8.5 ENGINEERING CONTROLS: Engineering control methods to reduce hazardous vapor exposure are <br />preferred. Methods include mechanical ventilation (dilution and local exhaust) and process control. <br />1Section 9: PHYSICAL and CHEMICAL PROPERTIES <br />9.1 APPEARANCE: Tan slurry liquid <br />9.2 ODOR: Slight pungent odor <br />9.3 BOILING POINT: Not determined <br />9.4 VAPOR PRESSURE: Not determined <br />9.5 VAPOR DENSITY: Not determined <br />9.6 SOLUBILITY IN WATER: Soluble <br />9.7 DENSITY: 1.22 to 1.52 g/ml (10.16 -12.66 lb/gal) at 25°C (770F) <br />9.8 FREEZING POINT: Not determined <br />9.9 pH: 13.5 <br />9.10 VOLATILE: Not determined <br />Section .' 10: STABILITY and REACTIVITY <br />10.1 STABILITY: Stable material under normal handling and storage conditions. <br />10.2 HAZARDOUS POLYMERIZATION: Will not occur. <br />10.3 HAZARDOUS DECOMPOSITION PRODUCTS: (Thermal decomposition) Heating product will <br />evolve H2S gas. Decomposition will evolve hydrogen sulfide, phosphine, oxides of sulfur. Decomposition <br />temperature range is 300 to 3050C (572 to 5810F). <br />10.4 INCOMPATIBILITY: Acids will cause the release of highly toxic hydrogen sulfide gas. Product <br />solution is not compatible with copper, zinc, aluminum or their alloys (i.e. bronze, brass, galvanized <br />metals, etc.) . Avoid elevated temperatures and heat. <br />0