. Carnegie Institution of Washington publication. COBALT CHLORIDE. 147 o a) 240 220 200 180 160 140 120 100 80 CO 40 20- 130 110. 100 $ Percentage of Ethyl Alcohol FIG. 64. —CONDUCTIVITY OFCOBALT CHLORIDE IN MIXTURES OF ETHYL ALCOHOL AND WATER AT 0°.. 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 work.. Carnegie Institution of Washington. Washington, Carnegie Institution of Washington

. Carnegie Institution of Washington publication. COBALT CHLORIDE. 147 o a) 240 220 200 180 160 140 120 100 80 CO 40 20- 130 110. 100 $ Percentage of Ethyl Alcohol FIG. 64. —CONDUCTIVITY OFCOBALT CHLORIDE IN MIXTURES OF ETHYL ALCOHOL AND WATER AT 0°.. 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 work.. Carnegie Institution of Washington. Washington, Carnegie Institution of Washington Stock Photo

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RMRFR26M–. Carnegie Institution of Washington publication. CHART B 26.—Nitric-acid ( ) and Cobalt-nitrate (— —) Reactions.. 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 work.. Carnegie Institution of Washington. Washington, Carnegie Institution of Washington

RMRFPGC0–. Carnegie Institution of Washington publication. . CHART B 38.—Uranium-nitrate ( ) and Cobalt-nitrate (— —) Reactions.. 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 work.. Carnegie Institution of Washington. Washington, Carnegie Institution of Washington

RMRFR26Y–. Carnegie Institution of Washington publication. 200 CHART B 25.—Nitric-acid ( ) and Strontium-nitrate (— —) Reactions.. CHART B 26.—Nitric-acid ( ) and Cobalt-nitrate (— —) Reactions.. 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 work.. Carnegie Institution of Washington. Washington, Carnegie Institution of Washington

RMRFRNK7–. Carnegie Institution of Washington publication. WORK OF H. It. KREIDER. 99. 25 50 75 Per cent, of methyl alcohol Fig. 38. Conductivity of cobalt chloride in mixtures of methyl alcohol and water at 25°.. 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 work.. Carnegie Institution of Washington. Washington, Carnegie Institution of Washington

RMRFRRYA–. Carnegie Institution of Washington publication. VISCOSITY MEASUREMENTS. 149 By studying the temperature coefficients we see that we have to deal with a peculiar phenomenon. In the pure acetone, as already stated, we have negative temperature coefficients. In the 75 per cent mixture of acetone and methyl alcohol, beginning with v = 400, we again have negative temperature coefficients. For v = 100 we have the temperature coefficients positive, while at v = 200 we have practically no temperature coefficient of conductivity. Tables 71 and 72 (figs. 72 and 73), for cobalt chloride in mixtures of

RMRFRRY1–. Carnegie Institution of Washington publication. 150 CONDUCTIVITY AND VISCOSITY IN MIXED SOLVENTS. 120 110. Percentage of Acetone FIG. 68. —CONDUCTIVITY OF COBALT CHLORIDE IN MIXTURES OF ACETONE AND WATER AT 0°. 230. 220^ 210 200; 190-^ 180- 170-. 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 work.. Carnegie Institution of Washington. Washington, Carnegie Institution of Washington

RMRFRNJY–. Carnegie Institution of Washington publication. 25 50 75 Per cent, of methyl alcohol Fig. 38. Conductivity of cobalt chloride in mixtures of methyl alcohol and water at 25°.. 25 50 75 Per cent, of methyl alcohol. 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 work.. Carnegie Institution of Washington. Washington, Carnegie Institution of Washington

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RMRFRTF7–. Carnegie Institution of Washington publication. FIG. 91.. FIG. 92. FIG. 90. SEE NO. 158. COBALT CHLORIDE IN SOLVENTS. FIG. 91. SEE NO. 165. COPPER CHLORIDE IN SOLVENTS. FIG. 92. SEE NO. 164. CHLORIDES OF CALCIUM AND COPPER. HEDOTrPE CO., BOSTON.. 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 work.. Carnegie Institution of Washington. Washington, Carnegie Institution of Washington

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RMRFRRWY–. Carnegie Institution of Washington publication. 25?£ 50f 7 Percentage of Acetone FIG. 72. — CONDUCTIVITY OF COBALT CHLORIDE IN MIXTURES OF ACETONE AND ETHYL ALCOHOL AT 0°.. .Percentage of Acetone FIG. 73. — CONDUCTIVITY OF COBALT CHLORIDE IN MIXTURES OF ACETONE AND ETHYL ALCOHOL AT 25°.. 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 work.. Carnegie Institution of Washington. Washington, Carnegie Institution of Washington

RMRFRT0J–. Carnegie Institution of Washington publication. COBALT CHLORIDE. 141 Cobalt chloride, dissolved in methyl and ethyl alcohols and acetone, gives rise to a number of color phenomena. Spectroscopic observations concerning the color changes of cobalt chloride in water, methyl and ethyl alcohols, acetone, and binary mixtures of these solvents have been carried out in the physical chemical laboratory of the Johns Hopkins University by Jones and Uhler. The results of this work have been published by the Carnegie Institution of Washington.1. 25^ 507. Percentage of Acetone FIG. 61.—CONDUCTIVITY OF LI

RMRFRNB8–. Carnegie Institution of Washington publication. 146 WORK OF M. R. SCHMIDT. than the conductivities of cobalt chloride, as we should expect. The results in the mixtures are represented in figs. 66, 67, and 68, and are in every respect like those obtained for the other two salts. The conductivities are less than the average in each case.. 50 75 100 Per cent. Glycerol Fig. 65.—Conductivity of Cobalt Chloride in Glycerol-Methyl Alcohol at 25e TEMPERATURE COEFFICIENTS OF CONDUCTIVITY. The most interesting features in this connection are the very large temperature coefficients of conductivity of t