Theory of Molecular Volumes. 



349 



: associated with carbon possesses the volume 11 ; in 

 association with S, N, and P its volume is only 8*3. 

 Thus VN 2 4 . ..2x15-6 + 4x83 = 64-4. Obs. 64. 



Sulphury! Chloride. 

 



CI— S— CI 



II 







S 25-6 

 2 0" 16-6 

 2 CI 44-2 



Calc. 86-4 

 Obs. 86-3 



Chlorosulphonic Acid, 

 



CI— S— OH 



It 

 



S 25-6 



oh ii-o t°„ r 



2 0" 16-6 <- M ^ 

 CI 22-1 



Calc. 75-3 

 Obs. 75-05 



The transformation of the latter into disulphuryl chloride 

 by the condensation of two molecules is a simple processi 







O 











CI- S-OIH HlOH S -CI = Cl-S-O-S-Cl 

 I! ! L_l I. n .I 



O 















This leads us to conclude that disulphuryl chloride contains 

 two residues from chlorosulphonic acid or sulphury 1 chloride 

 joined on by an hydroxyl oxygen. 



V S0 2 C1=V $0 2 C1 2 -V Cl = 86-3-22-l = 64'2„ 



Allowing 5 units for hydroxyl oxygen : 



2V S0 2 C1 

 — 0— 



(S0 ? C1) 9 



Obs. ... 



128-4 

 5-0 



133-4 

 133-5 



Compare the volume of 



CH 3 . CO— 0— CO . CH 3 



(vide prenv.). 



These conclusions are opposed to those obtained by Thorpe 

 on the basis of: Kopp's numbers, but are more in harmony 

 with chemical evidence (see Thorpe, Proe. Roy. Soc, clx. 

 1875, and Trans. Chem. Soc. 1880). 



