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Direct linkMacrakis, Kristie; Bell, Elizabeth K.; Perry, Dale L.; Sweeder, Ryan D. – Journal of Chemical Education, 2012
By modifying secret writing formulas uncovered from the archives of the East German Ministry of State Security (MfS or Stasi), a novel general chemistry secret writing laboratory was developed. The laboratory combines science and history that highlights several fundamental chemical principles related to the writing. These include catalysis, redox…
Descriptors: Foreign Countries, Higher Education, Interdisciplinary Approach, History
Mirholm, Alexander; Ellervik, Ulf – Journal of Chemical Education, 2009
We describe the use of acrylic tanks (400 x 450 x 27 mm) for visualization of chemical demonstrations in aqueous solutions. Examples of well-suited demonstrations are oscillating reactions, pH indicators, photochemical reduction of Lauth's violet, and chemoluminiscent reactions. (Contains 1 figure.)
Descriptors: Chemistry, Science Instruction, Demonstrations (Educational), Scientific Principles
