386 



Mr. H. J. H. Fenton. 



[Dec. 10, 



III. "On the Limited Hydration of Ammonium Carbamate." 

 By H. J. H. Fenton, M.A., F.C.S., F.I.C., Demonstrator 

 in Chemistry in the University of Cambridge. Communi- 

 cated by Dr. Hugo Muller, F.R.S. Received November 

 19, 1885. 



It occurred to me that a study of the action of water on ammonium 

 carbamate, with reference to the influence of time, mass, and tempera- 

 ture, would be of interest as tending to throw light upon the laws 

 which govern a chemical action of the simplest type in the liquid state 

 — the action consisting of the direct union of two simpler molecules 

 to form one more complex — 



CO(NH 2 ) (ONHJ + OH 2 =CO(ONH 4 ) 2 , 



There are but few such actions which can be investigated, where all 

 the substances are in the liquid state and all extraneous matter 

 absent. 



In a paper read before the Chemical Society in 1879,* I showed that 

 ammonium carbamate when acted upon by sodium hypochlorite in 



* " Chem. Soc. Jour.," 35, 12. 



