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• • • <br />Project Cripple Creek Hydrogeochemistry LIME TITRATION Date. 4/8/2008 <br />Task: Neutralization of Pyrite Oxidation Product Page 7-3 <br />T:604-224-4331 F: 604224-0540 AoCr7vizonsdiec.com ? WWW.Vi2005(ileccom <br />Vrzon Scirec Inc. 3650 Wesbrook Moll Vancouver, BC Conado 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 200C before commencing titrations <br />3) Sample C (Combined), cold pH = 2.59 <br />0.05N Ca(OH)2 <br />ml Target pH <br />0.0 2.47 <br />1.2 2.50 <br />73.0 3.00 <br />103.8 3.50 <br />110.9 4.00 <br />117.0 4.50 <br />122.0 5.00 <br />124.5 5.50 <br />126.6 6.00 <br />129.2 6.50 <br />132.0 7.00 <br />134.6 7.50 <br />C - Combined <br />7 00 <br />5.00 - - <br />5.00 <br />9.00 - - - <br />3 00 <br />200 ---- <br />1 00 - - - <br /> <br />7.00 -- -- - - - <br />X <br />a' <br />0.0 200 40.0 600 800 100.0 120.0 1400 1600 <br />Ca(CH)2 (mL) <br />Adrian Brown Consultants, Inc.