60 



Prof. E. N. Horsford on Glycocoll, 



In per cent, expressed the above determinations correspond 



with 

 Carbon, 

 Hydrogen, 

 Nitrogen, 



i 



ii. 



in. 



IV. 



v. 



VI. 



VII. 



22-91 22-25 

 5-68 556 



13-31 



Sulphuric acid, 24-62 24-62 24 20 24-40 



These numbers give the formula, 



3(C 4 H 4 NO n , HO)+2(S0 3 , HO). 



The juxtaposition of the estimated per cents, and analytical 

 results follows : — 



Carbon, - 

 Hydrogen, 

 Nitrogen, 



Oxygen, 



Sulphuric acid, 



12 equiv 



17 " 



3 " 



14 " 



2 " 



72 

 17 



42 

 112 



80 



*»4» 



Theory. 



28-29 



5-26 



1300 

 34-69 



24-76 



10000 



Experiment 



— 22-58 



5*62 



13-31 



34 03 



24 46 



10000 



The following formula is submitted as expressing the rational 

 constitution of this salt : — 



(Gl HO, S0 3 HO+G1 HO)+(GlHO, S0 3 HO). 



The following sulphuric acid compounds were none of them 

 completely analyzed. They were prepared in small portions 

 while seeking to obtain a neutral sulphate of hydrate of glyco- 

 coll ; and it was not until the capacity of this body to combine 

 with others of such different nature, and in such varied propor- 

 tions became fully apparent, that the existence of so complex 

 and unusual compounds was believed. 



The crystallized salts were for the most part groups of elon- 



ismsL 



Basic Sulphate of Glycocoll. 

 (b.) 3G1, 2S0 3 ,HO. 



The constitution of this salt differs from that of the preceding in 

 the amount of water. As both of them were dried in the air over 

 sulphuric acid, and suffered no change, this difference is attrib- 

 utable doubtless to the degree of concentration, or difference of 

 temperature. It will be observed that it corresponds precisely 

 With a basic hydrochlorate (d) 7 whose constitution is given on 

 page 380 of the last volume. 



With chlorid of barium, 021S2 grm. of crystals, gave (H940 

 grm. sulphate of baryta. 



In per cent, sulphuric acid 27-74. 

 This corresponds with the formula 



3(C 4 H 4 NO,)+2S0 3 +HO, 



which requires 27*87 parts in 100. As the probable rational con- 

 stitution of this salt the following is submitted : 



(Gl,SO, + Gl,HO)+Gl l S0 3 . 



