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Kuntzleman, Thomas S.; Corts, Shane; Schmidt, Anne – Journal of Chemical Education, 2021
A quantitative titration of the amount of magnesium hydroxide in milk of magnesia using only items purchased in grocery and retail stores is reported. Either vinegar or a solution of food grade citric acid serves as the titrant, while food dyes advertised as being extracted from natural sources provide the end-point indicator. An inexpensive,…
Descriptors: Chemistry, Food, Color, Teaching Methods
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Kuntzleman, Thomas S.; Bunker, Kasey R.; Bartlett, Ashlee A. – Journal of Chemical Education, 2019
An experiment is described that uses easily obtained materials (glow sticks, chalk, and acetone or alcohol) to separate the dyes contained in glow sticks that actively emit chemiluminescent light. The experiment is very easy to carry out, making it amenable for students to perform in laboratory or outreach settings. The separation occurs fast…
Descriptors: Chemistry, Science Instruction, Light, Laboratory Experiments
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Baldwin, Bruce W.; Hasbrouck, Scott; Smith, Jordan; Kuntzleman, Thomas S. – Journal of Chemical Education, 2010
In "JCE" Activity #67, "Flame Tests: Which Ion Causes the Color?", Michael Sanger describes how to conduct flame tests with household items. We have used this activity in outreach settings, and have extended it in a variety of ways. For example, we have demonstrated large-scale strontium (red), copper (green), and carbon (blue) flames using only…
Descriptors: Chemistry, Science Instruction, Scientific Concepts, Scientific Principles