216 



Sulphonic acids and sulphonates in distillate 4.62 



Sulphur dioxide in residue . 15 



Sulphuric acid in residue 1 . 69 



Ethyl sulphuric acid and ethyl sulphate in residue.... 0.99 



Sulphonic acids and sulphonates in residue 1 . 02 



Sulphur in insoluble carbonaceous residue . 12 



Total 100 . 00 



