. Carnegie Institution of Washington publication. The Absorption Coefficient of Solution for Monochromatic Radiation. 33 a colloid condition. They showed slightly a Tyndall cone in blue light. An examination of these freshly filtered iso-butyl alcohol (and also the iso-amyl alcohol) solutions with the ultra-microscope showed that they were not colloidal in nature, but that they contained a number of particles. Whether these particles were newly formed precipitate or some impurity is unknown. 1133//# •734 .194 CoCI2in Iso-butyl alcohol. 800 900 1,000 1,100 1,200 1,300/4^ FIG. 9.—The A-c and Abs
. Carnegie Institution of Washington publication. The Absorption Coefficient of Solution for Monochromatic Radiation. 33 a colloid condition. They showed slightly a Tyndall cone in blue light. An examination of these freshly filtered iso-butyl alcohol (and also the iso-amyl alcohol) solutions with the ultra-microscope showed that they were not colloidal in nature, but that they contained a number of particles. Whether these particles were newly formed precipitate or some impurity is unknown. 1133//# •734 .194 CoCI2in Iso-butyl alcohol. 800 900 1,000 1,100 1,200 1,300/4^ FIG. 9.—The A-c and Absorption Curves for Cobalt Chloride in Iso-Butyl Alcohol. The A— c curves for 734juju and 744/^u wave-lengths lying on the edge of the yellow-red absorption band show again that A decreases rapidly with dilution. For the wave-lengths 754juju and 764^ in the region of transmission A is constant. The behavior of the edge of the infra-red band is similar to the case of the propyl-alcohol solutions, for A increases with dilution, as shown by the rise in the A — c curves for wave-lengths l,018;uju to 1,133/zji. COBALT CHLORIDE IN ISO-AMYL ALCOHOL. Six solutions were prepared varying hi concentration from c = to c = The solutions in the bottles were of a deep blue in the higher concentrations, which changed to a greenish blue upon 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 Carnegie Institution of Washington. Washington, Carnegie Institution of Washington
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