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Attachment B, Technical Revision to the May Day Mine Permit, September 12, 2009. <br />OPQCorpm9ion MSDS <br />MATERIAL SAFETY DATA SHEET <br />r <br />r..*xame: Drm Sodium Silicate Solution <br />DWePrgmned• 061891% Page: I ors <br />I CHEMrCALPRODfJGTAN D_COM IDENTIFICATION <br />Prodrrd name: DT" Sodium si8cste solution <br />Produd description: A 2.0 weight ratio sodium silicate, 44.1 % solution in water <br />Manufac &rerr PQ Corporation <br /> P. O. Bo: 840 <br /> Valley Forge, PA 19482 USA <br />Telephone: 610.651-4200 <br />In cave ofemergency call: 610-651-4200 <br />For trunspadalion emergency <br />Call CHEMMEC: 800-424-9300 <br />2. COMPOSMONWORMATION ON INGREDIENTS <br />Chemical and Common Name CgSRegistryNumber Wt. % OSHA PEL ACGIHYLV <br />Water 7732-18-5 559% Not Established Not Established <br />SHkic acid, sodium salt; 134440 44.1% Not Estabilsbed Not Established <br />Sodium Silicate <br />I <br />i <br />3. IIA7ARDS IDF.NTMCATION <br />Emergency Overview: Clear to hazy, colorless, odorless, thick Hquid. Causes severe <br /> irritation to eyes and moderate skin irritation. Spray mist <br /> causes irritation to respiratory tract. Due to high pH of <br /> product, release into surface water is harmful to aquatic life. <br /> Noncombustible. Spills are slippery. Resets with acids, <br /> ammonlum salts, reactive metals and some organics. <br />Eye contact.- Causes severe irritation to the eyes. <br />Skin contact.- Causes moderate irritation to the skin. <br />Inhalation: Spray mist is irritating to respiratory tract. <br />fagesnan: May cause irritation to month, esophagus, and stomach. <br />Chronic hazards; No known chronic hazards. Not listed by NTP, IAKC or OSHA <br /> as a carcinogen. <br />Physical hazards: Dries to form glass film which can easily cut slim. Spilled <br /> material is very s4pery. Can etch glass irnot promptly <br /> removed. <br />4 FIRST AM MEASURES <br />Eye <br />In case of contact, immedistely tlusb eyes with plenty ofwater for at least <br /> 15 nrmutes. Get medical attention. <br />Sun- In cane of contact, immediately /lush skin with plenty ofwater. Remove <br /> contaminated clothing and shoes. Get medical attention. <br />31 of 35