20 



Dr. E. J. Mills's Researches on Melting-point. 



Table XVII. 





H*. 



H 5 - 



H 6 . 



H 6 - 



S, 



s 5 - 



S 6 . 



G 3 . 



G 4 . 









42-78 



42-79 



o 



42-78 



4269 



42-82 



42-81 



42-80 



4267 



42-83 





•88 



•74 



•G7 



•85 



•82 



•86 



•76 



•80 



•78 





•73 



•61 



•73 



•75 



•82 



•83 



•74 



•72 



•75 





•76 



•77 



•76 



•73 



•82 



•76 



•76 



•83 



•80 





•78 



•71 



•70 



•73 



•72 



•79 



•71 



■75 



•83 





•G5 



•66 



•83 



•69 



•74 



•83 



•68 



■77 



•93 





•83 



•69 



•70 



•75 



•87 



•76 



•86 



•85 



•78 





•78 



•77 



•73 



•81 



•82 



•83 



•86 



•75 



•80 





•83 



•71 



•78 



•69 



•74 



•79 



•81 









•83 



•69 



•83 



•73 



•84 



•68 



•76 









•70 



•63 



•65 



•79 



•74 



•71 



•78 









•73 



•79 



•70 



•77 



•72 



•83 



•66 











•63 



•76 



•73 



•69 



•81 



•67 











•77 



•62 



•81 



•82 



•79 



•76 







Mean 



42-77 



42-71 



42-73 



4276 



42-78 



4279 



4276 



42-77 42-81 



Probable error. 



•012 



•Oil 



•on 



•009 



•010 



•009 



Oil 



013 012 



Thermometer... 



2 



2 



2 



1 4 



2 



2 



2 



3 | 3 



E. Phenol Derivatives. 



1. a Mononitrophenol. — By a mononitrophenol I mean the 

 more volatile mononitrophenol of the two produced by treating 

 phenol with water and nitrate according to Fritsche's method 

 (Journ. prak. Chem. lxxv. p. 257). The crude stock was 

 several times distilled. 



A was crystallized from water and dried over oil of vitriol 

 (as the rest were): it had been exposed to light (A x ); it was 

 further and continuously exposed to light (A 2 ). B x was a 

 partial precipitate from spirit by water, dried in the shade ; 

 the mother-liquid gave with more water a precipitate which 

 turned brown when dried like B x , and then melted about 0°'6 

 below Bx. Cx was made like B 1} except that scarcely any 

 thing was left in the mother-liquid. E was a total precipitate 

 from a sodic salt which contained, as a mean of two experi- 

 ments, 14*28 per cent, of sodium (theoretically 14*31): it was 

 dried in the shade. D was twice crystallized, probably from 

 weak spirit, and dried in shade twenty days, i. e. very much 

 longer than either of the others. 



The powder of « mononitrophenol has a tendency to cake 

 together on keeping. 



