"3B torso model"
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LEYBOLD® Analysis of Triprotic Phosphoric Acid by Titration
LEYBOLD® Chemistry Experiments.
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pH Indicators and Dyes STEM Kit
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This kit is a unique teaching tool for introducing students to the chemistry behind plant pigments (the blueberry bio-pigment cyanidin) and how they can be used as pH indicators and fabric dyes.
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