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• • <br />Project. Cripple Creek Hydrogeochemistry CAUSTIC SODA TITRATION <br />Task: Neutralization of Pyrite Oxidation Product <br />T: 604-224-4331 -, F: 604-224-0540 info?n vizonsoleccom www.vizonscitee-(am <br />Vizon SoTec Inc 3650 Wesbrook Mall Vancouver, BC Canada V6S 2L2 \`-, I Z 0 N <br />S C I T E C <br />Test 4: Titrations Using MON NaOH Solution <br />Initial (cold) pH was recorded then the solution was warmed to 200C before commencing titrations <br />D - South Cresson <br />4) Sample D (South Cresson), cold pH = 4.72 <br />0.10N NaOH <br />ml Target pH <br />0.0 4.84 <br />0.1 4.50 <br />0.1 5.00 <br />0.2 5.50 <br />1.5 6.00 <br />3.3 6.50 <br />5.2 7.00 <br />6.6 7.50 <br />• <br />Date: 4/8/2008 <br />Page 8-4 <br />Adrian Brown Consultants, Inc. <br />HaOH (mL)