An instrument-free classification of phenolic compounds using ferric chloride reagent to improve organic chemistry teaching and learning
คำสำคัญ:
Classification, Phenolic compounds, Ferric chloride, Organic chemistryบทคัดย่อ
The chemistry of functional groups is an essential component of basic organic chemistry courses in the undergraduate level. A rapid qualitative method to classify the type of phenolic compounds for the improvement in organic chemistry teaching and learning has been developed. The solution of FeCl3 was used as the reagent. The different colors of the phenolic-Fe3+ complexes solutions were observed in the different types of phenolic compounds. The phenolic compounds with ortho-dihydroxy and orthotrihydroxy groups specifically obtained the dark green color of the solutions. In this paper, we present a low-cost detector, designed to classify the types of phenolic compounds based on visual observation of colors with a simple enough concept and operation to be used as a teaching tool.
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