Law of Density -Numbers. 



29 



Table XIII. 



Boiling-points (s), observed and calculated, for the Ethers 

 C w H 2 „0 2 . 



m. 



Formulas. 



a. 



n. 



S°, 

 observed. 



calculated. 



Differ- 

 ences. 



Autho- 

 rities. 



1. 

 2. 



3. 



4. 



5. 



6. 



7. 



8. 



9. 

 10. 

 11. 

 12. 

 13. 

 14. 

 15. 

 16. 



(C H 2 2 ) 



C 2 H 4 2 



C 3 H 6 2 



4 H 8 O 2 



O 5 H l0 O 2 



c 6 H 12 2 



7 H u 2 



8 H le 2 



Op H ]8 2 



OioH 20 2 



CuffaO, 



(C 12 H 24 2 ) 



C i 3 H 26 2 



Cu H 28°2 



(C 15 H 30 O 2 ) 



16 H 32 2 



46 

 60 

 74 

 88 

 102 

 116 

 130 

 144 

 158 

 172 

 186 

 200 

 214 

 228 

 242 

 256 



5 

 8 

 11 

 14 

 17 

 20 

 23 

 26 

 29 

 32 

 35 

 38 

 41 

 44 

 47 

 50 



"*33 

 53 

 77 

 100 

 122 

 143 

 162 

 176 

 200 

 217 



250 

 269 



298 



-172 



+21-8 

 51-0 

 76-6 

 100 

 1220 

 142-7 

 162-5 

 181-5 

 199-6 

 217-0 

 2339 

 250-3 

 266-1 

 281-5 

 296-7 



39 



292 



256 



23-4 



22-0 



20-7 



19-8 



190 



18-1 



174 



16-9 



16-4 



15-8 



15-4 



15-2 



Kp.* 



Pi. 



Li. 



Pu. 



Li. 



Li. 



Fe. 



Wo. 



Sch. 



Ca. 



Zi. 

 Zi. 



Zi. 



Table XIV. 



Boiling-points, calculated and observed, of Benzol and its 

 Homologues. 



m. 



Name. 



Formula. 



a. 



36 



50 



64 



78 



92 



106 



120 



134 



148 



n. 



S°, 

 observed. 



calculated. 



Differ- 

 ences 



Of 5°. 



Autho- 

 rities. 



1. 



2. 



3. 

 4. 

 5. 

 6. 

 7. 

 8. 

 9. 





C 3 

 C 4 Ho 



7 H 8 



C 8 H 10 



O n H l6 



3 

 6 

 9 

 12 

 15 

 18 

 21 

 24 

 27 



"85 

 108 

 129 

 152 

 171 

 188 



60-7 



54-7 



69-8 



88-5 



108-4 



1281 



147-5 



166-2 



184-2 



15-1 

 18-7 

 190 

 197 

 19-4 

 18-7 

 180 



Henry. 



]S T oad. 



Oahours. 



Gerhardt. 



Noad. 



Fittig. 







Benzol . . . 

 Toluol ... 



Xylol 



Oumol ... 

 Cymol . - . 

 Laurol . . . 



In the columns headed " differences " in the last two tables 

 I have given the increase of calculated boiling-point for each 

 successive member of the series, and a similar relationship is 

 to be found in the case of other series. Thus, in : — 



* Kp. stands for Kopp; Pi. = Pierre; Li. = Liunemann; Pu. = 

 Puchot; Fe. = Fehling; Wo. = Worterbuch (dictionary) Fehling 

 Sch. = Schorlemmer; Ca. = Cahours; Zi. = Zincke. 



