phagocytes

http://aycu10.webshots.com/image/29969/2004225986637034140_rs.jpg Yes, after boiling with NaOH ,suction filtration is then carried out ,then excess HCl is added to the yellow ppt. .Finally the mixture is dissolved in HOT water(recrystallization).Then the solid obtained is Needle-like . I would like to ask if the yellow ppt. is sodium benzoate and why the benzoic acid is Needle-like .By the way ,will there any side product be formed ? I think the reason of carring out alkaline hydrolysis is to shift the equilbrium to the right in order to obtain more crystals since NH3 can be esaily removed, but i am not sure if i am right.

The benzoic acid is prepared by alkaline hydrolysis of benzamide I would like to ask why the shape of benzoic acid obtained is Needle-like and why there is yellow ppt. after boiling benzamide with NaOH for about 15 minutes? Thanks

i see Thanks!

Thanks a lot!

How do the conditions for nitration of methyl benzoate differ from those for the nitration of benzene? what is the mechanism nitration of methyl benzoate to form methyl 3-nitrobenzoate? Thanks.

How do the conditions for nitration of methyl benzoate differ from those for the nitration of benzene? what is the mechanism nitration of methyl benzoate to form methyl 3-nitrobenzoate? Thanks.

Is sodium thiosulphate easily oxidized by oxygen

thanks

Determination of the activation energy for the Iodination of Propanone by finging the rate constant at different temperature

"Add starch just before titration end"WHY?