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Copyright (c) 2006-2014 MindTouch Inc.
This file and accompanying files are licensed under the MindTouch Master Subscription Agreement (MSA).
At any time, you shall not, directly or indirectly: (i) sublicense, resell, rent, lease, distribute, market, commercialize or otherwise transfer rights or usage to: (a) the Software, (b) any modified version or derivative work of the Software created by you or for you, or (c) MindTouch Open Source (which includes all non-supported versions of MindTouch-developed software), for any purpose including timesharing or service bureau purposes; (ii) remove or alter any copyright, trademark or proprietary notice in the Software; (iii) transfer, use or export the Software in violation of any applicable laws or regulations of any government or governmental agency; (iv) use or run on any of your hardware, or have deployed for use, any production version of MindTouch Open Source; (v) use any of the Support Services, Error corrections, Updates or Upgrades, for the MindTouch Open Source software or for any Server for which Support Services are not then purchased as provided hereunder; or (vi) reverse engineer, decompile or modify any encrypted or encoded portion of the Software.
A complete copy of the MSA is available at http://www.mindtouch.com/msa
|0.005M MnO4- solution is poured in a 250-mL beaker containing a magnetic stirrer. |
A 0.5M solution of oxalic acid and sulfuric acid is poured into the beaker.
The solution turns burgandy in about 2.5 minutes, then changes from red to orange to amber to yellow over a period of four minutes. The solution is colorless in 12 minutes total.
In order to utilize this reaction effectively, one must run two or more trials simultaneously. There should be one that remains unaltered, and one or more that are modified with any of the following: a concentration change (more or less MnO4-in solution), a temperature change, or an additional catalyst (MnCl2). This reaction is useful for reaction rate changes because of the copious color changes and the length of time needed for the solution to become colorless without any procedural modifications.
An NSF funded Project