For Sales Information, please contact: Western Canada Phone: E-mail: 1 403 250 9100 wcsales@graymont.com Eastern Canada Phone: E-mail: 1 450 449 2262 ecsales@graymont.com Eastern United States Phone: E-mail: 1 814 355 4761 eussales@graymont.com Western United States Phone: E-mail: 1 801 262 3942 wussales@graymont.com

Technical Information: MSDS - High Calcium Hydrated Lime (229K) Pleasant Gap Bell Mine & Bald Eagle High Calcium Hydrated Lime (111K)

Graymont’s Indian Creek Plant is one of our plants producing Hydrated lime

High calcium hydrated lime Ca(OH)2 is a dry powder produced by reacting quicklime with a sufficient amount of water to satisfy the quicklime's natural affinity for moisture. The process converts CaO to Ca(OH)2. The amount of water required depends on both the subtle characteristics of the quicklime and the type of hydrating equipment available. Hydrated lime easily forms as a suspension or slurry and is often pumped to various process locations within industrial plants. The resulting solution is strongly alkaline, having a pH of 12.4. Most hydrated limes contain approximately 75 percent CaO and 25 percent H2O.

Hydrated lime is used in a variety of industrial applications including water treatment, as an anti-stripping agent in asphalt, and in soil stabilization. Some hydrated limes are sold into the food grade market as well. The product is commonly sold in 50 lb. bags or as a bulk material shipped in pneumatic truck trailers or rail car tanks.

Graymont carefully monitors its production processes to produce products to meet exacting specifications. These include applicable ASTM, NSF-60 and AWWA B202 standards.