Hi,
i need your help, please... :P
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... https://www.thevespiary.org/rhodium/Rhodium/chemistry/equipment/nomograph.html (https://www.thevespiary.org/rhodium/Rhodium/chemistry/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
Here is the proper procedure: https://www.thevespiary.org/rhodium/Rhodium/chemistry/phenylacetone.html#phenylacetic (https://www.thevespiary.org/rhodium/Rhodium/chemistry/phenylacetone.html#phenylacetic)
Naturally the excess acetic anhydride will distill first, it has a lower boiling point.