Laserfiche WebLink
. Trade Name: As 2047 Sodium Silicate Solution <br />Date Prepared.- 06/12/06 Page: 3 of 5 <br />8. EXPOSURE CONTROLS/PERSONAL PROTECTION <br />Engineering controls: Use with adequate ventilation. Keep containers closed. Safety shower <br /> and eyewash fountain should be within direct access. <br />Respiratoryprotection: 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 />Eye 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 />Specific gravity: 1.58 g/cm3 (20°C), 53.15° Be, 13.17 lbs/gal <br />Solubility in water: Miscible. <br />10. STABILITY AND REACTIVITY <br />Stability: This material is stable under all conditions of use and storage. <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 decomposition <br />products: Hydrogen. <br />11. TOXICOLOGICAL INFORMATION <br />Acute 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, cuffs 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 />LD50 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 47% sodium silicate. <br />Subchronic Data: In a study of rats fed sodium silicate in drinking water for 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 />0 sodium silicate in their diet at 2.4g/kg/day for 4 weeks, whereas rats fed