What liquid substances have an index of refraction of 1.42? and then 1.43?

Answer 1

Index of refraction is related to density. You can make any solution, vary the concentration of the solute, and vary the index of refraction. Here it is for sugar solution;Sugar concentration (%) Index of refraction
0 1.3330
5 1.3403
10 1.3479
15 1.3557
20 1.3639
25 1.3723
30 1.3811
35 1.3902
40 1.3997
45 1.4096
50 1.4200
55 1.4307
60 1.4418
65 1.4532
70 1.4651
75 1.4774
80 1.4901
85 1.5033