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CHEMICAL <br /> CRS. REDUCING <br /> SOLUTION <br /> CRS® Technical Description <br /> CRS® (Chemical Reducing Solution) is an iron-based reagent that facilitates <br /> biogeochemical in situ chemical reduction (ISCR)of halogenated contaminants <br /> such as chlorinated ethenes and ethanes. CRS is a pH neutral, liquid iron solution <br /> that is easily mixed with 3-D Microemulsion® Factory Emulsified before injection <br /> into a contaminated aquifer. CRS provides a soluble,food-grade source of ferrous <br /> iron (Fe2*), designed to precipitate as reduced iron sulfides, oxides, and/or <br /> hydroxides.These Fe" minerals are capable of destroying chlorinated solvents <br /> via chemical reduction pathways, thus improving the efficiency of the overall <br /> reductive dechlorination process by providing multiple pathways for contaminant Example of CRS <br /> degradation in groundwater. <br /> For a list of treatable contaminants with the use of CRS,view the Range of Treatahle Contaminants Guide, <br /> Chemical Composition <br /> • Water 7732-18-5 <br /> • Ferrous Gluconate 299-29-6 <br /> Properties <br /> • Appearance - Dark green to black <br /> • Odor- Odorless <br /> • pH6.Oto8.0 <br /> • Density-Approximately 1.0 grams per cubic centimeter(0.9 to 1.1 g/cc) <br /> • Solubility- Miscible <br /> • Vapor Pressure - None <br /> • Non-hazardous <br /> Storage and Handling Guidelines <br /> Storage Handling <br /> Store in original tightly closed container Avoid prolonged exposure <br /> Store away from incompatible materials Observe good industrial hygiene practices <br /> Recommended storage containers: plastic-lined Wear appropriate personal protective equipment <br /> steel, plastic,glass,aluminum,stainless steel, or Avoid contact with eyes, skin, and clothing <br /> reinforced fiberglass Avoid breathing spray mist <br /> Store in a cool, dry,well-ventilated place Use with adequate ventilation <br /> Keep away from extreme heat and strong oxidizing <br /> agents <br />