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• • <br />Project: Cripple Creek Hydrogeochemistry LIME TITRATION <br />Task: Neutralization of Pyrite Oxidation Product <br />L 604-224-4331 F: 604-224-0540 inloCDvizonscirec.com www vizonscite( (orn <br />Vizon SciTec Inc 3650 Wesbrook Mall Vancouver, BC Canada V6S 2L2 , Z O N <br />S C I T E C <br />Test 3: Titrations Using 0.05N Ca(OH)2 Solution (ie. 0.025M) <br />Initial (cold) pH was recorded then the solution was warmed to 20aC before commencing titrations <br />4) Sample D (South Cresson), cold pH = 4.72 <br />D -South Cresson <br />0.05N Ca(OH)2 <br />ml Target pH <br />0.0 4.84 <br />0.1 5.00 <br />0.4 5.50 <br />1.9 6.00 <br />6.0 6.50 <br />10.3 7.00 <br />13.2 7 0 <br />800 - - - - -- <br />7m <br />600 <br />-- <br />sW <br />CL 400 ---- <br />a 00 -- <br />2.10 <br />100 - -- 000 <br />00 1U 40 6C 8-0 100 12.0 140 <br />Ca(OH)2 (ml) <br />Adrian Brown Consultants, Inc. <br />• <br />Date: 4/8/2008 <br />Page 7-4