Phelps and Hubbard — Ederification of Succinic Acid. 371 













Table I. 





















Succinic 



Ester 











i — 





Found 









Succinic 









in 



Total 









acid 



Alcohol with HC1 



Theory 



Found distillate 



yield 



Reaction time 



No. 



grm. 



cm 3 



% 



grm. 



A 



grm. 



grm. 



in % 



hr. 



mm. 



(1) 



50 



100 



1 



25 



73 



7 



50-07 



0-60 



68-0 





30 



(2) 



50 



100 



1 



25 



73 



7 



55-06 



o-oo 



74-9 



1 



25 



(3) 



50 



150 



1 



25 



73 



7 



62-26 



0-47 



85-1 





45 



(±) 



50 



200 



1 



25 



73 



7 



66-30 



0-90 



91-2 



1 



55 



(5) 



50 



200 



1 



25 



73 



7 



6627 



1-40 



91-8 



1 



50 



(6) 



50 



250 



1 



25 



73 



H 



7 



65-60 



2-15 



91-9 



2 



25 



CO 



50 



250 



1 



25 



73 



7 



69-05 



1-65 



95-9 



3 





(8) 



50 



300 



1 



25 



73 



7 



67-10 



3-25 



95-5 



4 





(9) 



50 



300 



1 



25 



73 



7 



69-85 



1-65 



97'0 



5 



20 



(10) 



50 



350 



1 



25 



73 



7 



63-80 



4-70 



92-9 



o 



15 



(11) 



50 



350 



1-25 



73-7 



67-31 



2-65 



94-9 



5 





(12) 



50 



200 



1-25 



B 



73-7 



66-26 



1-82 



92.9 



9 



20 



(13) 



50 



200 



1-25 



73-7 



65 30 



5-27 



95-8 



3 





(14) 



50 



350 



1-25 



73-7 



66-05 



2-90 



93-6 



3 



45 



(15) 



50 



350 



1-25 



73-7 



68-75 



1-57 



95-4 



4 



30 



(16) 



50 



200 



10 



73-7 



59-10 



5-43 



87'4 





20 



(1?) 



50 



200 



10 

 10 



73-7 



67-90 



1-50 



94-2 



2 



25 



(18) 



50 



200 



and 



73-7 



68-32 



3-30 



95-8 



I 



45 







Gaseo 



US 

















( -iqx 50 J 20U 1-25 



t 19 ) 50 \ 150 10 73- 



300 



1-25 



7 67-60 1-80 94-2 



147-4 132-80 6-32 94-4 



( 2 °) 10 °( 200 10 



ten so I 200 V25 



K ' \ 100 10 73-7 69-50 2-50 97*7 



(oo) 100 -S 30 ° 1-25 



{--) ±w 200 1-25 147-4 135-25 4-81 97"5 



2 



10 



1 





2 





1 



15 



1 



25 



I 





2 





1 





It was found, also, that when 75 grms. of succinic ester held 

 in a flask fitted with a receiver and capillary tube for a vacuum 

 distillation were heated for an hour in a waterbath at 60° 

 under a pressure of 15 mm , that the weight of the ester was 

 diminished by less than 0*05 grm. 



From these experiments it appears that the losses in the pre- 

 paration of pure succinic ester should not exceed two grams. 



While the general process of treatment described above was 

 applied in all the experiments recorded in the table, some 



