topdowner (Stranger)
04-20-04 13:27
No 501861
       nomograph     

Hi,

i need your help, please...tongue

i have a vacuum-pump that pulls a maximum of 500mbar. I mean from 1013mbar. now my queation. i have made p2p fom phenylacetic acid sodium acetate and acetic acid anhydride.

now i want to distill the p2p. I have took before the nomograph here it is... ../rhodium /equipment/nomograph.html

i have drew a line from 375 torr to 215°C (P2P) and the p2p must distill at 185°C. I have made it but I only get the acetic acid anhydrid. what did i wrong.

The p2p made I after a synthesis of the book from otto snow.

Phenyl acetic acid sodium acetate and acetic acid anhydrid. Heatet for 18h at 150°C. After that distill only the p2p.



thx for all replys 		 
 
 
 
    Rhodium
(Chief Bee)
04-20-04 15:08
No 501881
       If Otto said that, he's wrong...     

Here is the proper procedure: ../rhodium /phenylacetone.html#phenylacetic

Naturally the excess acetic anhydride will distill first, it has a lower boiling point.
The Hive - Clandestine Chemists Without Borders