[tega]

Hi,  I dunno if this is in the right place..   but my teacher asked me to:

"Out line how you would prepare and purify a solid derivative of the compound, include the name of any apparatus used and of any laboratory techniques used."

The compound being either an aldehyde or a ketone..

Any help would be great!   Thanks

[Morphic flip]

Entering "prepare and purify a solid derivative" into google (change the two ** for tt) gave:

h**p://www.google.co.uk/search?hl=en&ie=ISO-8859-1&q=prepare+and+purify+a+solid+derivative&meta=

The third link down might help, I can`t view it though.

[Yggdrasil]

If you want to make a solid derivative of an aldehyde or ketone, reacting with hydroxylamine to form an oxime is a good choice.

[Alberto_Kravina]

If you want to make a solid derivative of an aldehyde or ketone, reacting with hydroxylamine to form an oxime is a good choice.

I think that reacting with sodium bisulfite is also a method to make a solid derivate of an Aldehyde/Ketone.

[swati]

   Hello everyone
Some of the solid derivatives of an aldehyde or ketone are
1.)  oxime
      ->  prepared by reaction of  -CHO  or  >C=O  with  hydroxylamine hydrocloride
      ->  pH required  3.5  approximately
2.)  semicarbazone
      ->  prepared by reaction of  -CHO  or  >C=O  with  semicarbazide hydrochloride
      -> for its preparation, first a solution of semicarbazide hydrochloride & CH₃COONa is
           prepared in order to liberate free base (semicarbazone) from its salt
      ->  recrystallize  from  alcohol
3.)  2,4-DNP hydrazone
      ->  prepared by reaction of  -CHO  or  >C=O  with  2,4-DNP hydrazine hydrochloride
      ->  recrystallize  from  alcohol