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5 FIRE FIGHTING MEASURES <br />GENERAL HAZARD: This product is not flammable and does not AUTOIGNITION TEMPERATURE: Not Applicable <br />support combustion. FLAMMABILITY CLASSIFICATION: Not Applicable <br />UEL/LEL: Not Applicable EXTINGUISHING MEDIA: Most fire extinguishing agents may be <br />FLASH POINT: Not Applicable used in a res invviv uIg suuium au —1— _ <br />6 ACCIDENTAL RELEASE MEASURES <br />ACTION TO TARE FOR SPILLS OR LEAKS: For dry spills, sweep or contamination of bodies of water during cleanup. <br />shovel and place in containers for disposal in accordance <br />with applicable regulations (see Sections 13 and 15). Avoid <br />7 HANDLING & STORAGE <br />GENERAL: Store in cool. dry area. Keep container tightly HYGIENIC PRACTICES: Wash hands thoroughly with soap and <br />closed. Good housekeeping should be maintained to minimize water after handling, and before eating, drinking, or <br />dust accumulation and generation. smoK 1119. <br />8 EXPOSURE CONTROLS/PERSONAL PROTECTION <br />ENGINEERING CONTROLS: Use general dilution and local exhaust Use if excessively dusty or if skin is damaged. Wear gloves <br />ventilation techniques to meet nuisance exposure limit (see that will not allow alkaline solutions to penetrate. <br />Section 15). RESPIRATORY PROTECTION: Use appropriate NIOSH/MSHA certified <br />EYE PROTECTION: Use goggles or vented safety glasses in respirators when levels are expected to exceed exposure <br />excessively dusty conditions. Ensure eyewash fountain is limits (see Section 15). <br />located in immediate work area. <br />SAn rRvi aa.a ivn: ivdL required uuuer I-rPHYSICAL U& CHEMICAL PROPERTIES <br />SOLUBILITY IN HATER: 16.3% at 22.6?C pH VALUE: is 20?C 1% solution 11.37 <br />APPEARANCE: White granular solid, odorless. FLASH POINT: Not Applicable <br />MOLECULAR WEIGHT: 105.99 SPECIFIC GRAVITY: 2.533 <br />BOILING POINT: Not. Applicable VAPOR PRESSURE: Not Applicable <br />MELTING MUM 9517C <br />10 STABILITY & REACTIVITY DATA <br />STABILITY: Stable under normal conditions. May react <br />violently with strong acids. Carbon dioxide gas and large <br />quantities of heat can be evolved. Reacts with hydrated lime <br />in the presence of moisture to form caustic soda. a <br />corrosive. <br />INCOMPATIBILITY: Keep away from aluminum powder, fluorine, <br />phosphorous pentoxide, sulfuric acid. ammoniacal silver <br />and .,!ten l i t h i <br />lAZAlDOUS DECOMPOSITION PRODUCTS: Soda Ash decomposes at <br />temperatures above 1.0001C, releasing carbon dioxide gas <br />(COZ). Carbon dioxide is an asphyxiant and may affect <br />respiration rate or interfere with breathing. The sodium <br />oxide residue sublimes at 12751C, forming vapors and mists of <br />caustic soda on contact with moisture or water. <br />HAZARDOUS POLYMERIZATION. Will not occur. <br />11 TOXICOLOGICAL EFFECTS <br />EYES: Dry, powdered sodium carbonate, as 25% to 75% of a a week, for 3.5 months. In observations from exposure at <br />mixture with dry sodium sulfate, applied to eyes of rabbits approximately 70 mg/cubic meter, the weight gain of the <br />and monkeys in a systematic study was judged "corrosive" or exposed group was 24% less than that of controls. Inhalation <br />"harmful" to both species, whether or not followed by LC50 in the rat was 2,300 mg/m3/2 hours, mouse - 1.200 mg/m3/2 <br />irrigation at two minutes after application. However, most hours, and guinea pig - 800 mg/m3/2 hours. <br />monkey eyes exposed to 50% mixture showed little or no INGESTION: Low acute oral toxicity: reported LDeos in rats <br />persistent injury 21 days after exposure. was 4.090 mg/kg of body weight. Reported LD50 in mice was <br />SKIN: An aqueous solution. 50% weight/volume, of sodium 117mg/kg (IPR) <br />carbonate was applied to the intact and abraded skins of CARCINOGENICITY: Soda Ash (or any of the components of Soda <br />rabbits and guinea pigs. The sites were examined at 4. 24. Ash) is not listed as a carcinogen by the Environmental <br />and 48 hours and scored for erythema, edema, or corrosion. Protection Agency (EPA), the State of California, or the <br />The abraded skins of the guinea pigs were negligibly International Agency for the Research on Cancer (IARC). <br />affected, but the rabbit skins showed moderate erythema and REPRODUCTIVE: An intrauterine dose of 0.085 mg/kg <br />edema. given to pregnant mice on day 4 of pregnancy caused <br />INHALATION: Male rats were exposed to an aerosol of a 2% preimplantation mortality. <br />aqueous solution of sodium carbonate, 4 hours a day, 5 days <br />Dense Soda Ash Page 2 of 4 SEARLES VALLEY MINERALS <br />