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F5 FIRE FIGHTING MEASURES GENERAL HAZARD: This product is not flammable and does not AUTOIGNITION TEMPERATURE: Not Applicable support combustion. FLAMMABILITY CLASSIFICATION: Not Applicable UEL/LEL: Not Applicable EXTINGUISHING MEDIA: Most fire extinguishing agents may be FLASH POINT: Not Applicable used in fires involving sodium sulfate. 6 ACCIDENTAL RELEASE MEASURES ACTION TO TAKE FOR SPILLS OR LEAKS: For dry spills, sweep or contamination of bodies of water during cleanup. shovel and place in containers for disposal in accordance with applicable regulations see Sections 13 and 15). Avoid 7 HANDLING & STORAGE GENERAL: Store in cool, dry area. Keep container tightly HYGIENIC PRACTICES: Wash hands thoroughly with soap and closed. Good housekeeping should be maintained to minimize water after handling, and before eating, drinking, or dust accumulation and generation. smoking. 8 EXPOSURE CONTROLS/PERSONAL PROTECTION ENGINEERING CONTROLS: Use general dilution and local exhaust Use if excessively dusty or if skin is damaged. Wear gloves ventilation techniques to meet nuisance exposure limit (see that will not allow alkaline solutions to penetrate. Section 15). RESPIRATORY PROTECTION: Use appropriate NIOSII/MSHA certified EYE PROTECTION: Use goggles or vented safety glasses in respirators when levels are expected to exceed exposure excessively dusty conditions. Ensure eyewash fountain is limits (see Section 15). located in immediate work area. SKIN PROTECTION: Not required under normal conditions. 9 PHYSICAL & CHEMICAL PROPERTIES SOLUBILITY IN WATER: 16.3% at 22.6?C PH VALUE: @ 201C 1% solution 11.37 APPEARANCE: White granular solid, odorless. FLASH POINT: Not Applicable MOLECULAR WEIGHT: 105.99 SPECIFIC GRAVITY: 2.533 BOILING POINT: Not Applicable VAPOR PRESSURE: Not Applicable MELTING POINT: 851?C F10 STABILITY & REACTIVITY DATA ,0STABILITY: Stable under normal conditions. May react HAZARDOUS DECOMPOSITION PRODUCTS: Soda Ash decomposes at violently with strong acids. Carbon dioxide gas and large temperatures above 1,000X, releasing carbon dioxide gas quantities of heat can be evolved. Reacts with hydrated lime (COz). Carbon dioxide is an asphyxiant and may affect in the presence of moisture to form caustic soda, a respiration rate or interfere with breathing. The sodium corrosive. oxide residue sublimes at 12759C, forming vapors and mists of INCOMPATIBILITY: Keep away from aluminum powder, fluorine, caustic soda on contact with moisture or water. phosphorous pentoxide., sulfuric acid, ammoniacal silver HAZARDOUS POLYMERIZATION: Will not occur. nitrate and molten lithium. 11 TOXICOLOGICAL EFFECTS EYES: Dry, powdered sodium carbonate, as 25% to 75% of a a week, for 3.5 months. In observations from exposure at mixture with dry sodium sulfate, applied to eyes of rabbits approximately 70 mg/cubic meter, the weight gain of the and monkeys in a systematic study was judged "corrosive" or exposed group was 24% less than that of controls. Inhalation "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 irrigation at two minutes after application. however, most hours, and guinea pig - 800 mg/m3/2 hours. monkey eyes exposed to 50% mixture showed little or no INGESTION: Low acute oral toxicity: reported L%os in rats persistent injury 21 days after exposure. was 4,090 mg/kg of body weight. Reported LDso in mice was SKIN: An aqueous solution, 50% weight/volume, of sodium I17mg/kg (IPR) carbonate was applied to the intact and abraded skins of CARCINOGENICITY: Soda Ash (or any of the components of Soda rabbits and guinea pigs. The sites were examined at 4, 24, Ash) is not listed as a carcinogen by the Environmental and 48 hours and scored for erythema, edema, or corrosion. Protection Agency (EPA), the State of California, or the The abraded skins of the guinea pigs were negligibly International Agency for the Research on Cancer (IARC). affected, but the rabbit skins showed moderate erythema and g`vREPRODUen to CCTIVE: An intrauterine dose of pregnancy 5ca sed edema. INHALATION: Male rats were exposed to an aerosol of a 2% preimplantation mortality. aqueous solution of sodium carbonate. 4 hours a day, 5 days Dense Soda Asti Page 2 of 4 SEARLES VALLEY MINERALS