Linkart — Hydrolysis of Alkyl Metallic Sulphates. 541 



— = K(A— 1 /2 x) (B + 1 /2 a*), which on integration gives 

 (to 



k - - 2 - x 2 : 3 loo- ( B + 1 / 2a- ) A 



~ (A + B)t s (A - 1/2 aj)B 



Experimental Results. 



Table I. 



T = 60° 



Ethyl Calcium Sulphate in presence of Barium Chloride. 



t 

 in hours 



20-0 



42-5 



72-3 



960 



120-0 



141-0 



165-0 



a 



24-3 



42-5 



72-0 



96-0 



140-5 



1910 



241-0 



286-5 



BaS0 4 



in grams in gram equiv. 



B = 1-0 N HC1 



K 



o-iooo 



0-0428 



0-00733 



0-2066 



0-0885 



0-00733 



0-3340 



0-1431 



0-00726 



0-4288 



0-1837 



0-00726 



0-5190 



0-2224 



0-00729 



0-592U 



0-2536 



0-00729 



0-6656 



0-2852 



0-00726 



0-7002 



0-3000 = A 





B: 



= 0-5 N HC1 





0-0570 



0-0244 



0-00673 



0-0981 



0-0420 



0-00667 



0-1636 



0-0701 



0-00067 



0-2117 



0-0907 



0-00652 



0-3020 



0-1294 



00652 



0-4090 



0-1752 



000661 



0-5050 



0-2164 



0-00667 



0-5846 



0-2505 



0-00667 



0-7002 



0-3000 = A 





Ethyl Strontium Sulphate in presence of Barium Chloride. 



in hours 



22-5 

 48-3 

 67-3 

 76-0 

 96-0 

 121-0 

 140-0 



BaS0 4 



in grams 



in gram equiv. 



K 



B = 



= 1-0 N HOI 





0-1264 



0-0541 



(0-00828) 



02482 



0-1063 



0-00786 



0-3260 



0-1397 



0-00761 



0-3700 



0-1585 



0-00772 



0-4592 



0-1967 



0-00786 



0-5584 



0-2392 



0-00789 



0-6248 



0-2677 



0-00786 



0-7002 



0-3000 = A 





