. Carnegie Institution of Washington publication. FLUIDITY. 199 greater in acetone than it is in water, and that the viscosity of acetone is very much less than that of water. The temperature coefficients of fluidity increase in all the mixtures, with the exception of the 100 per cent mixtures, with increase in dilution; and the largest coefficients are in the 25 per cent and 50 per cent mixtures; the values in these two cases being identical to the fourth decimal place. Tables 84, 85, and 86 (fig. 101) show that potassium sulphocyanate, in 260 340 220- 200- 180- "3 140- 120- 100- 80- 60-
. Carnegie Institution of Washington publication. FLUIDITY. 199 greater in acetone than it is in water, and that the viscosity of acetone is very much less than that of water. The temperature coefficients of fluidity increase in all the mixtures, with the exception of the 100 per cent mixtures, with increase in dilution; and the largest coefficients are in the 25 per cent and 50 per cent mixtures; the values in these two cases being identical to the fourth decimal place. Tables 84, 85, and 86 (fig. 101) show that potassium sulphocyanate, in 260 340 220- 200- 180- "3 140- 120- 100- 80- 60- 40-. IV 50^ Percentage of Acetone FIG. 100. 100$ Curve I, fluidities of mixtures of acetone and water at 0°. Curve II, fluidities of N/10 potassium sulphocyanate in mix- tures of acetone and water at 0°. Curve III, fluidities of the above solvent mixtures at 25°. Curve IV, fluidities of potas- sium sulphocyanate in the above solvent mixtures at 25°. mixtures of acetone and methyl alcohol, exhibits a marked maximum which disappeared at 25°. The curves at 25°, however, show an increase in the fluidity at 0°, in the 75 per cent mixtures, but that this maximum has values above the average values for the two solvents. It is to be noted also, that although the increase in fluidity with increase in dilution is nearly the same in acetone and methyl alcohol, yet this increase is very much greater in the mixtures, and especially in the 50 per cent and 75 per cent mixtures. Tables 84, 85, and 86 (fig. 102) show that tenth-normal potassium sulpho- cyanate, in mixtures of acetone and ethyl alcohol, exhibits a maximum in fluidity in the 75 per cent mixture at 0°. The pure solvent at 0°, and the solutions and solvent at 25° do not exhibit this maximum, although they do. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original w
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