ENTHALPIES OF SOLUTION OF SOME AROMATIC SULFONIC-ACIDS AND OF SOME AMINOSULPHONIC ACIDS

Authors
BICKERTON J MACNAB JI SKINNER HA PILCHER G
Citation
J. Bickerton et al., ENTHALPIES OF SOLUTION OF SOME AROMATIC SULFONIC-ACIDS AND OF SOME AMINOSULPHONIC ACIDS, Thermochimica acta, 222(1), 1993, pp. 69-77
Citations number
10
Categorie Soggetti
Chemistry Analytical
Journal title
Thermochimica acta → ACNP
ISSN journal
00406031
Volume
222
Issue
1
Year of publication
1993
Pages
69 - 77
Database
ISI
SICI code
0040-6031(1993)222:1<69:EOSOSA>2.0.ZU;2-S
Abstract
The molar enthalpies of solution at 298.15 K of several aromatic sulph onic acids and of some aminosulphonic acids were measured in water, in aqueous acid, and in aqueous alkali. Molar enthalpies of ionization i n aqueous solution were derived for orthanilic acid (11.86 +/- 0.53 kJ mol-1), metalinic acid (20.79 +/- 2.1 kJ mol-1), sulphanilic acid (17 .91 +/- 0.63 kJ mol-1), aminomethanesulphonic acid (29.14 +/- 0.32 kJ mol-1) and taurine (43.39 +/- 0.65 kJ mol-1).