Densities and Refractive Indices of Potassium Salt Solutions in Binary {Ethanol+Water} Mixture of Different Compositions

Table 2

Experimental densities (𝜌) and refractive indices (𝑛_𝐷) of potassium salt solutions in 10%, 20%, 40%, and 60% (v/v) ethanol + water (E-W) mixture at 303.15 K.

	𝜌			𝜌			𝜌
𝑋KCl	(g·cm^−3)	𝑛𝐷	𝑋KBr	(g·cm^−3)	𝑛𝐷	𝑋KI	(g·cm^−3)	𝑛𝐷
KCl + E-W			KBr + E-W			KI + E-W
10% (v/v) E-W
0.000579	0.9920	1.339	0.000573	0.9923	1.340	0.000571	0.9990	1.342
0.001123	0.9956	1.340	0.000971	1.0030	1.341	0.001116	1.0141	1.344
0.001596	1.0007	1.341	0.001745	1.0129	1.343	0.001730	1.0286	1.346
20% (v/v) E-W
0.000645	0.9764	1.346	0.000605	0.9807	1.345	0.000618	0.9869	1.346
0.001224	0.9822	1.347	0.001255	0.9917	1.346	0.001184	0.9993	1.349
0.001876	0.9816	1.348	0.001877	1.0016	1.349	0.001848	1.0161	1.351
40% (v/v) E-W
0.000748	0.9482	1.354	0.000733	0.9547	1.354	0.000737	0.9601	1.356
0.001502	0.9515	1.356	0.001453	0.9638	1.357	0.001480	0.9753	1.359
0.002218	0.9589	1.357	0.002241	0.9742	1.359	0.002232	0.9882	1.361
60% (v/v) E-W
0.000926	0.9073	1.361	0.000888	0.9159	1.360	0.000914	0.9225	1.364
0.001850	0.9121	1.363	0.001818	0.9258	1.362	0.001824	0.9356	1.366
0.002777	0.9156	1.364	0.002771	0.9364	1.365	0.002738	0.9520	1.367