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<br /> <br />r?,adeNaw..• Dnw Sodium Silicate Solution <br />Date Prepared O6M9/06 Page. 3 of 5 <br />8. EXPOSURE CONTROLS/PE RSONAL PROTECTION <br />Engineering controls: Use with adequate ventilation. Keep containers closed. Safety shower <br /> and eyewash fountain should be within direct access. <br />RespiratoryprotaWon: Use a NIOSH-approved dust and mist respirator where spray mist <br /> occurs. Observe OSHA regulations for respirator use (29 C.F.R. <br /> §1910.134) <br />Skin protection: Wear body-covering protective clothing and gloves. <br />Rye protection: Wear chemical goggles. <br />9. PHYSICAL AND CHEMICAL PROPERTIES <br />Appearance. Thick liquid. <br />Color. Clear to hazy white. <br />Odor. Odorless or musty odor. <br />PH. Approximately 12.9 <br />Specgtc gravity: 153 g/cm' (20°C), SOA° IN, 12.79 lbs/gal <br />Solubility in water., Miscible. <br />I0. STA$ILITY REACI7V II Y <br />Stability: This material Is stable under all conditions of use and storage. <br />. <br />Conditions to avoid., None. <br />Materials to avoid., Gels and generates heat when mixed with acid. May react with <br /> ammonium salts resulting in evolution of ammonia gas. Flammable <br /> hydrogen gas may be produced on contact with aluminum, tin, lead, and <br /> Zinc. <br />Hazardous deconq wllion <br />products, Hydrogen. <br />11. TOXICOLOGICAL INFORM ATION <br />.!cute Data: When tested for eye and skin irritation potential, a similar material <br /> caused severe irritation to the eyes and moderate irritation to the skin. <br /> Human experience indicates that skin Irritation occurs, particularly, <br /> when sodium silicates get on clothes at the collar, cafh or other areas <br /> where contact and abrasion may occur. <br /> The acute oral toxicity of this product has not been tested. When sodium <br /> silicates were tested on a 100% solids basis, their single dose acute oral <br /> LDso in rats ranged from 1500 mg/kg to 3200 mg/kg. The acute oral <br /> lethality resulted from nonspecific causes. This product contains <br /> approximately 44% sodium silicate. <br />Subchronic Data: In a study of rats fed sodium silicate in drinking water fur three months, <br /> at 200, 600 and 1800 ppm, changes were reported in the blood chemistry <br /> of some animals, but no specific changes to the organs of the animals due <br /> to sodium silicate administration were observed in any of the dosage <br /> groups. Another study reported adverse effects to the kidneys of dogs fed <br /> sodium silicate in their diet at 2Ag/kg/day for 4 weeks, whereas rats fed <br />0