1072 
Taso a, 
Action of BrC‚;H4SO,CI (1 mol.) + AlCl3 (1 mol.) on excess of benzene. 
Concentration acid chloride = 0.1 n.; T = 30°. 
(a—x) = concentration acid chloride in grammols. after the time ¢ in minutes 
Kj — constant monomolecular reaction. 
(= » bi » > 
LS MEE 
0 lh een = es 
120 15.3 0.00t11 | _ 0.0139 
240 66.4 | 0.00108 0.0144 
360 50.2 | 0.00104 | 0.0146 
480 50.6 | 0.00111 | 0.0170 
720 30.2  0,00109 | 0.0193 
1500 | 21.5 | [0.00093] | = 
4320 | 193 [0.00035] ua 
| | 
TABLE IL. 
Action and concentration as above. Benzene not again dried. 
t (a—x)103 | Ki 
Te apie ees = 
60 8a 0.000698 
210 71.8 0.000636 
1320 50.6 | 0.000367 
tion is noticed. We attribute this: 1s* to the absorption of moisture 
during the manipulations, which exerts an influence particularly 
when the amount of the active catalyst has become small; 
2nd to a slight paralysis caused by: the reaction itself, 
Influence of the temperature. 
