24:6 Phelps and Tillotson, Jr. — Malonic Acid. 



and collected in the 100 cm3 side-necked receiver, which was 

 kept cool by allowing a stream of cold water to flow over it 

 constantly. 



In every experiment in Table I the flow of hot alcohol vapor 

 was started into the malonic acid solution before the tempera- 











Table 



I. 















Alcohol 



Beaction 



Malonic ester 







nit Q 1 r\Tl 1 A 



with wni 



time 



A 





a. 





No. 



IVXctlUlll 



acid 

 grm. 



ZnCl 2 

 grm. 



_s 





Theory 

 grm. 



Found 

 grm. 



, 



cm 3 , per cent 



hr. 



min. 



per cent 



( 1) 



50 



._ 



200 



.. 



1 



50 



76-92 



54-00 



70-2 



( 2) 



50 





200 



1-25 



1 





76-92 



65-02 



84-5 



( 3) 



50 





200 



1-25 



1 



45 



76-92 



68-53 



89-1 



( 4) 



50 





300 

 100 

 100 



1-25 

 1-25 

 1-25 



2 

 3 

 4 



30 



76-92 



72-39 



94-0 



( 5) 



50 



-- 



200 

 40 



1-25 

 1-25 



2 



-- 



76-92 



72-06 



93-7 



( 6) 



50 



0-5 



160 



__ 



_ 



55 



76-92 



65-22 



84-0 



( 7) 



50 



1-0 



200 

 40 



1-25 



- 



40 



76-92 



36-13 



47-0 



( 8) 



50 



1-0 



160 

 40 



1-25 



- 



45 



76-92 



69*45 



90-3 



( ») 



50 



1-0 



160 

 40 



1-25 



- 



45 



76-92 



64-17 



82-6 



(10) 



50 



1-0 



160 





1 



40 



76-92 



66-94 



87-0 



(11) 



50 



1-0 



200 



1-25 



_ 



45 



76-92 



69-02 



90-0 



(12) 



50 



1-0 



300 

 40 



1-25 

 10 



- 



50 



76-92 



71*25 



92-7 



(13) 



50 



l'O 



260 



40 



10 



1 



10 



76-92 



67-93 



88*3 



(14) 



50 



1-0 



260 

 40 



1-25 



2 



30 



76-92 



68-67 



89-3 



(15) 



50 



10-0 



160 

 40 



1-25 



- 



35 



76-92 



67-07 



87-2 



(16) 



50 



10-0 



160 



.. 



1 



50 



76-92 



68-67 



89-3 



(17) 



50 



10-0 



200 



1-25 



_ 



45 



76-92 



71-39 



92-8 



(18) 



50 



10-0 



200 



10 





55 



76-92 



62-11 



80-8 



(19) 



50 



io'-o 



200 



10 



1 



30 



76-92 



58*10 



75-5 



(20) 



50 



10*0 



400 

 200 



1-25 

 1-25 



1 

 1 



50 

 10 



76-92 



70-30 



91-4 



(21) 



50 



10-0 



200 

 200 



1-25 



1-25 



1 



15 

 45 



76-92 



67-31 



87*5 



(22) 



50 



10-0 



200 



1-25 



- 



55 



76-92 



71-71 



93-2 



ture reached 105°, which temperature was attained within fif- 

 teen minutes after beginning the experiment, and a steady 

 current was maintained afterwards, holding the temperature 

 between 100° and 110° till all the alcohol had been distilled 



