555 



of water is which this form of amorphous carbon can absorl); over 

 a sulphuric acid with a /< = 0,997 the substance at)sorbed 0,929 

 parts of water per 1 part of dry substance ! Accordingly an absorption 

 of water of the same order of magnitude as in (freatly swelling 



1.00 



0.50 - 



Fig. 2. 



1.00 



