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I have impure organic compound trimethyl hydroquinone, how
many methods available to purify it. Plz explain in detail
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Answer Posted / karunakarreddy
trimethylhydroqunone is intermediate for vitamine E
THE PURIFICATION IS DEPENDS ONTHE NATUREOF IMPURITY U HAVE
FIRST 1.U TEST THE SOLIBILTY OF THE COMPOUND,THEN ISOLATE
IT FROM THE SOLVENT IN WHICH IT DISSOVLES,
2.U TAKE 50g COMPOUNDAND 1.5 TO 2VOLUMES OF n-Hexane heat d
mix. to 40 DEGREES TO 45 AND MAINTAIN FOR 1HR COOL TO RT
COOL TO 10 TO 15 MAINTAIN FOR 1HR FILTER
SECOND TEST IS JUST GIVE WATER WASHINGS
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hi i am siva icompleted m,sc in organic chemistry in 2008&working as alecturer can u send me the interview qusetions with answers . i expected that i got 135 - 140 marks is there any chance to get selection my interview is on may 7th 2010
can you pls provide chemistry previous papers for the post of trainee chemist in ap genco
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