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• • • <br />Project: Cripple Creek Hydrogeochemistry CAUSTIC SODA TITRATION Date: 4/8/2008 <br />Task: Neutralization of Pyrite Oxidation Product Page 8-2 <br />T.604-224-4331 F: 604-224-0540 inlorilvizonsdteccom wwwvizonseitec(om <br />Vizon SoTec Inc 3650 Wesbrook Mall Vancouver, 8C Canada V6S 21-2 `_/ 1 Z O N <br />S C I T E C <br />Test 4: Titrations Using 0.1 ON NaOH Solution <br />Initial (cold) pH was recorded then the solution was warmed to 200C before commencing titrations <br />2) Sample B (Granitic), cold pH = 2.83 <br />0.10N NaOH <br />ml Target pH <br />0.0 2.59 <br />13-6 3.00 <br />27.5 3.50 <br />30.3 4.00 <br />31.3 4.50 <br />32.5 5.00 <br />33.5 5.50 <br />34.4 6.00 <br />35.2 6.50 <br />35.8 7 00 <br /> <br />B - Granitic <br />H. W <br />7.W <br />5.W <br />4.00 <br />3 00 <br />2 00 <br />1.W <br />o 00 <br />0.0 <br />Adrian Brown Consultants, Inc. <br />50 10.0 11" u 200 25.0 30.0 35.0 40.0 <br />NaOH (mL)