AND COMPOSITION IN OEGANIC COMPOUNDS. 
2G1J 
Table XIX. 
Diff. 
Anhydrous. 
- 
DifF. 
2C,H, 
^ ^3 ^2 
2C,H, 
6C,H, 
C, H, 0 , 
^12 Og 
C 16 H 44 0 g 
C 2 O Hjg Og 
C 32 Hgg Og 
Acetic acid 
Propionic acid 
Butyric acid 
Valeric acid 
Caprvlic acid 
Gerhardt, Kopp, 138° 
Limpricht and Uslar, l65°... 
Gerhardt, about 190° 
Chiozza, about 215° 
Chiozza, about 290° 
2 X 13*5 
2x 12-5 
2 X 12*5 
6x12-5 
In the ethers of the acids Cj, Og, homologous to oxalic acid, the difference in 
boiling-point corresponding to the elementary difference CgHg seems to be about 14°; 
this number, however, is somewhat uncertain, as boiling-points rather differing from one 
another have in some cases been observed for isomeric ethers. Isomeric with the latter, 
or belonging to the same series, are those ethers derived from the glycols Hn+g O 4 by 
the action of two equivalents of an acid O 4 . All the data respecting the boiling- 
points of these ethers, Og, are collected in the following Table : — 
Table XX. 
Cg H, Og ... 
C,3H4oOg 
C44lh,Og . 
CieHuOg < 
ClsHigOg 1 
C,0 ^13 4^8 ••• 
C23H,,Og 1 
CjaH^gOg ... 
Oxalate of Methyl 
Oxalate of Ethyl 
Succinate of Methyl 
Diacetate of Ethyl-glycol 
Diacetate of Propyl-glycol 
Succinate of Ethvl 
Diacetate of Butvl-glycol 
Butyro-acetate of Ethyl-glycol ... 
Diacetate of Amyl-glycol 
Valer-acetate of Ethyl-glycol ... 
Dibutyrate of Ethyl-glycol 
Suberate of Ethyl 
Oxalate of Amyl 
Sebate of Methyl 
Divalerate of Ethyl-glycol 
Sebate of Ethyl 
Dumas and Peligot, l6l°; Delffs, 164°. 
Kopp, 185°; Deltfs, 186°. 
Fehling, 198°. 
Wurtz, 186°— 187°. 
Wurtz, 186°. 
D’Arcet, Fehling, 214°; Kopp, 217°- 
Wurtz, about 200°. 
Simpson, 208°— 215°. 
Wurtz, above 200°. 
Louren^o, about 230°. 
Wurtz, 239°— 241°. 
Laurent, 260°. 
Cahours, 260°; Balard, 262°, 
Carlet, 285°. 
Louren9o, about 255°. 
Carlet, 308°. 
The difference is also less than 19° in the carbonates, the sulphocyanides, the borates 
of the alcohol radicals 0^11^+,, and in the bromides of the diatomic radicals C„ H„. 
Di£F. 
C, H, 
3C, H, 
Table XXI. 
a. r u ^10 ^10 ^8 
I ^ ^^2 ^3 1 P H O 
I ^ P LT ! '^le *^18 '^6 
^1 IT Q 
H3 
H. 
NS, 
NS, 
H,. NS, 
O p TT I 3 C, H, O, B O 3 
3C4 H, O, BO3 
' 3C4,H,4 0,B03 
9C, 
H4 
H. 
C, H, 
Br, 
Br, 
Br, 
Ettling, Cahours, 125° 
VVurtz, 190° 
Medlock, 224°; Bruce, 226° 
Pierre, 133°; Cahours, 132° 
Cahours, 146° 
Henry, 195°— 210°; Medlock, 197° 
Ebelmen and Bouquet, 72° 
Ebelmen and Bouquet, 119°; Bowman, 121° 
Ebelmen and Bouquet, 270° — 275° 
Regnault, 129°; Pierre, 133°; Cahours, 130 
Reynolds, 143°; Cahours, 145° 
Wurtz, about 158°; Cahours, l60° 
Diff. 
4x16 
2x 18 
14 
3x17 
3x 16 
9x 17 
15 
15 
