Osmotic coefficients of benzenesulfonic acid solutions at 25 °C

Ionization of Hydrofluoric Acid at 25 °C*

The io niza tion constant, K" fo r the reaction HF:;:2 H + + F was ca lc ul ated on the ba s is of pote ntio· metric measure me nt s in the cell Ag; AgCl , CI , F II La F"II Na F, HCI, 1-1 , 0 1 KCI(Sa td .), I-I g,Cl 2 ; Hg at 25 °C. A leas t squ a res procedure was a ppli ed to the ex pe rime nt a l da ta yie lding a bes t es tim a te fo r K, of 5 .85 X 10 4 with a s tanda rd e rror of 0.03 X...

Osmotic coefficient of aqueous solutions of cyclohexylsulfamic Acid at the freezing point of solutions.

The osmotic coefficient of aqueous solutions of cyclohexylsulfamic acid was determined by freezing point measurements up to the molality 0.65 mol kg-1. The osmotic coefficients were fitted to the Pitzer equation, and ion interaction parameters α1, β(0) and β(1) were evaluated. The mean ion activity coefficient of the solute was calculated, and the non-ideal behaviour of the system investigated ...

Osmotic Second Wirlal Coefficients

6,123,819 A * 9/2000 Peeters ....................... 204/452 6,361,958 B1 * 3/2002 Shieh et al. ................. 435/7.1 6,524,790 B1 * 2/2003 Kopf-Sill et al. .............. 435/6 6,585,939 B1 7/2003 Dapprich 6,599,436 B1 7/2003 Matzke et al. 6,613,512 B1 9/2003 Kopf-Sill et al. 6,649,358 B1 * 11/2003 Parce et al. .................. 435/7.2 6,699,665 B1 * 3/2004 Kim et al. ......................

Diffusion of levodopa in aqueous solutions of hydrochloric acid at 25 oC

Buffer Solutions of Potassium Dihydrogen Phosphate and Sodium Succinate at 25 °C

A buffer mixture consist in g of eq ua l molali t ies (m ) of potass ium dihydrogen phospha te and sodium succina te is proposed as a useful reference poin t in the study of acid-base equilibria, b ridging t he present gap be tween pH 5.5 a nd pH 6.8. The p(aH'YCI) at 25 °0 has been determined by elect.romo tive-fo rce measuremen ts for fi ve buffer solu tions in which m varied from 0.005 to 0....