Podcast Beta
Questions and Answers
Major constituent of peppermint Oil Vanillin/sulfuric acid test Few crystals of ______ + 2 dps. Conc. H2SO4 + 2dps. of vanillin/sulfuric acid reagent In a dry porcelain dish Violet Color
Menthol
Dissolve Few crystals of ______ in 3 drops of glacial acetic acid + 3 dps. Conc. H2SO4 + 1 Drop of Conc. HNO3 In a dry porcelain dish Bluish green color
Thymol
Eugenol occurs in the free form as the major constituent of ______ Principle: It depends on that the phenolic portion (acidic property) in V.O. reacts with solution of aqueous alkali (KOH) to form water soluble phenate salt
clove oil
______ Volatile Oils Glycosides II Volatile oils 1- Qualitative tests for selected volatile oil constituents A- Menthol
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Volumetric Determination of ______ in Clove oil ______ occurs in the free form as the major constituent of clove oil Principle: It depends on that the phenolic portion (acidic property) in V.O. reacts with solution of aqueous alkali (KOH) to form water soluble phenate salt
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