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ALCOHOLS

ALCOHOLS. Aliphatic. Aromatic. Methanol. Ethanol. Glycerol. Benzyl alcohol. Liquid, mobily, true. Liquid, viscous, true. Liquid, oily, true. Colorless. Characteristic odor. Butter almond odor. Ignition test:. Inflammable, luminous, smoky. Inflammable, non luminous, non smoky.

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ALCOHOLS

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  1. ALCOHOLS

  2. Aliphatic Aromatic Methanol Ethanol Glycerol Benzyl alcohol

  3. Liquid, mobily, true Liquid, viscous, true Liquid, oily, true Colorless Characteristic odor Butter almond odor Ignition test: Inflammable, luminous, smoky Inflammable, non luminous, non smoky Volatilization No change No change No residue The compounds are aliphatic The compound is aromatic

  4. Miscible in H2O Immiscible No change Immiscible Immiscible Immiscible All the compounds are neutral

  5. Not done (only for solid) No reaction in all No reaction in all Benzyl alcohol + 3-4 drops Conc. H2SO4 (on the wall) Dirty gleatinous white ppt No reaction in all Not done

  6. Methanol OX. Formaldehyde OX. Formic acid Ethanol OX. Acetaldehyde OX. Acetic acid Benzyl alcohol OX. Benzaldehyde OX. Benzoic acid

  7. Iodoform test • Alcohol + 10% NaOH + xss I2 No yellow ppt Yellow ppt

  8. 2. Esterification test

  9. Borax + H2O (to dissolve it) + 2 drops ph.ph. + glycerol Disappearance of pink color (( glycerol borate)) very strong acid 4. Conc. H2SO4 test for benzyl alcohol Benzyl alcohol + Conc. H2SO4 Dirty white gelatinous ppt 3500 – 3200 cm -1 OH functional gp streatching band < 3000 cm -1 CH aliphatic streatching band > 3000 cm -1 CH aromatic streatching band

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