breather

i take a lot of breaks.
probably not really good.

i revised on ethanol yesterday.


dehydration of ethanol
ethanol --> ethene + water

*catalyst of CONCENTRATED sulphuric acid
and at 170 degrees celsius.

oxidisation of ethanol
ethanol + [o] --> ethanoic acid + water
oxidising agent: potassium dichromate(VI)
>> goes from orange to dark green.

ethanol + sodium
ethanol + sodium hydroxide --> sodium ethanoate + water


--------------

Batch Process of Ethanol:
Fermentation of Sugar (sugar cane)
glucose + yeast --> ethanol + carbon dioxide + wter
___ Yeast contains enzymes that convert sugar *glucose* into ethanol , H2O and CO2.

^ mixture of ethanol and water seperated by fractional distillation

If air is present--->creates ETHANOIC ACID.

*slow
*uses renewable sources (sugar cane)
*produces ethanol + carbon dioxide

_____________

Continuous Process of Ethanol:
Hydration of Ethene
ethene + steam (water) --> ethanol

CONDITIONS -- . 300 degrees celsius
. under high pressures
. with catalyst phosphoric acid

*fast
*using non-renewable sources [crude oil]
*produces pure ethanol



>>>>>>>>>.

YEAH!
GEEK!NOTES