Volatile Oils & its Identification Tests

• Volatile Oils & its Identification Tests ensure quality, authenticity, and therapeutic value in pharmaceutical applications.
• Volatile Oils & its Identification Tests confirm purity by evaluating aroma, solubility, optical rotation, and chemical reactions.

Definition:

• Volatile oils (essential oils) are aromatic, volatile compounds obtained from plants.

Examples:

• Menthol (Peppermint)
• Eucalyptus oil (Eucalyptus)
• Clove oil (Clove)

Properties:

• Aromatic, volatile, and evaporate easily.
• Insoluble in water but soluble in alcohol.
• Have antibacterial, antifungal, and medicinal properties.

Tests for Identification:

1. Spot Test:

   • Place a drop on filter paper.
   • Positive Result: No permanent stain (unlike fixed oils).

2. Sudan III Test:

   • Reagent: Sudan III stain.
   • Positive Result: Red coloration.

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