FOR SOLIDS AND LIQUIDS. 



237 



16th. Acids and Ethers, Citric Acid Group. 



Name. 



Formula. 



Sp. Gravity. 



Authority. 



Citric acid 



Itaconic acid 



ii it 



Citraconic acid 



ti ii 



Citraconic anhvdride. 



C 6 H 8 7 



u 



u 

 II 



C 5 H 6 4 



it 

 ii 

 it 



C 5 H 4 Cv 



1.G17 - 

 1.542 ... 

 1.553 ._ 

 1.557 - 



1.573 ._ 

 1.632 ._ 

 1.616 

 1.618 

 1.247 

 1.25360, 12°.4 

 1.24894, 16°.6 

 1.24518, 20° _ 

 1.24405,21° _ 

 1.23920, 25°.4 

 1.23501, 29°.2 

 1.23073,33° _ 



Eichter. 



Schiff. J. 12, 41. 

 Buignet. J. 14, 15. 

 W. C. Smith. Am. 



J. P. 53, 145. 

 Schroder. Ber. 13, 



1070. 



"Watts' Dictionary. 



- Knops. V. H. V. 

 1887, 17. 



Triethyl citrate. 



Tetrethyl citrate. 

 Ethyl aconitate.. 



Ethyl isaconitate 

 Methyl itaconate 



Polymer of methyl itaco- 

 nate. 

 Ethyl itaconate 



^12 ^20 °7 • 



C H H 2i 7 . 



C 12 H 18 6 



C 7 H 10 O 4 



(C T H 10 4 ) n 

 C 9 H u O,.__ 



Polymer of ethyl itaconate 



(c 9 n H o 4 ) r 



1.142,21° ... 



1.1369,20° _. 

 1.1022,20° _. 

 1.074, 14° ... 



1.1064 



1.0505, 15° - 



1.1399, 14°.7__ 



1.13195, 12° ... 

 1.12410, 18° — 

 1.12182,20° _. 

 1.11882, 22°.5 

 1.11421, 27°.l 

 1.10847, 32°.4 

 1.3126,20° — 



1.051,15° 



1.04613,20° .. 



1.2549, 20° _.. 



Malaguti. A. C. P. 



21, 267. 

 Conen. Ber. 12, 1653. 



ii u 



Watts' Dictionary. 

 Conen. Ber. 12, 1653. 

 Conrad and Guth- 



zeit. A. C. P. 222, 



255. 

 Anschiitz. Ber. 14, 



2787. 



- Knops. V. H. V. 

 1887, 17. 



Anschiitz. Ber. 14, 



2787. 

 Knops. V. H. V. 



1887, 17. 



