Question

how to convert ethanol into methanol.?

Answer 1

Ethanol can converted to methanol in the following series of steps:
1.Ethanol first undergoes oxidation by reacting it with chromium trioxide to form acetic acid.
CH₃CH₂OH +CrO₃ = CH₃COOH
2. Acetic acid is then reacted with sodium hydroxide to form sodium acetate and water
CH₃COOH +NaOH = CH₃COONa +H₂O
3.In the third step the sodium acetate is reacted with sodium hydroxide and calcium oxide to form methane and sodium carbonate and calcium.
CH₃COONa +NaOH + CaO = CH₄ + Na₂CO₃ + Ca
4. Methane formed in step 3 is then reacted with chlorine molecule to form methyl chloride and hydrochloric acid
CH₄ + Cl₂ =CH₃Cl + HCl
5. In the last step methyl chloride is passed through aqueous potassium hydroxide to form methanol
CH₃Cl + KOH = CH₃OH

Answer 2

CH3CH2OH+H2SO4 at 170-180 degree centigrade= CH2=CH2CH2=CH2 Under ozonolysis +Zn/H20=2HCHOHCH0+LiAlH4=CH3OH

Ethanol will respond with concentrated sulfuric corrosive to frame ethene, which is a gas and will rise out of our ethanol-sulfuric corrosive solution.

Ethene would then be able to be responded with osmium tetroxide, since we're saving no cost here, to shape ethane-1,2-diol, ordinarily known as ethylene glycol.

Ethane-1,2-diol can be divided with occasional corrosive to shape two reciprocals of formaldehyde.

With our formaldehyde, we can respond it with a synergist aluminum alkoxide to shape methyl formate. This is known as a Tischenko response, it'll work with formaldehyde on the grounds that the carbocation moderate is extremely temperamental here.

At long last, with our methyl formate, we can respond it with sodium in methanol (a Bouveault-Blanc Reduction) to frame methanol in a methanol solution!

Methanol is the cheapest dissolvable other than water, so an ideal approach to change over is put the ethanol away and arrange some methanol.