Journal Of The American Chemical Society Volume 11

Paperback | October 12, 2012

byAmerican Chemical Society

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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1889 edition. Excerpt: ...ones of normal gray, which makes 14,420 different tones. 2. Physico-Ohemical Researches. The blending of colors and their application as dye stuffs. 3. Chemical Researches. In these researches published in the " Memoires de 1'Academie" from 1831 to 1836, he isolated a great number of the coloring principles of the matters used in dyeing. He studied the action of light, heat, humidity, etc., upon dyed materials. He was led to admit that the coloring matters united with tissues by a special force which he called capillary attraction. He explained how fabrics dyed with Prussian blue and exposed to the rays of light in a dry or moist vacuum, lost their blue color in giving off cyanogen or hydrocyanic acid and how they regained it when exposed in an atmosphere containing oxygen. From these observations he deduced some general principles and considerations relative to the matter of living organized beings, and conceived the following hypothesis: " Supposing that an or-" ganized being contains Prussian blue in a liquid acting as sap or " blood, and that this liquid enters an organ exposed to the action " of light which could reduce the coloring principle into cyanogen " and protocyanide of iron; supposing that an exhalation of " cyanogen occurs, and then an absorbtion of oxygen; supposing " this oxygen to be carried with the protocyanide of iron in " organs where light has no action and where Prussian blue and " peroxide of iron are formed, the exhalation of cyanogen and the " discolorization of the liquid containing the Prussian blue in the " organ which has been exposed to light, and the recoloration of " this liquid produced by an absorbtion of the oxygen, are phe-" nomena which would be explained as produced by a vital force, if " the...

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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1889 edition. Excerpt: ...ones of normal gray, which makes 14,420 different tones. 2. Physico-Ohemical Researches. The blending of colors...

Format:PaperbackDimensions:50 pages, 9.69 × 7.44 × 0.1 inPublished:October 12, 2012Publisher:General Books LLCLanguage:English

The following ISBNs are associated with this title:

ISBN - 10:0217501281

ISBN - 13:9780217501286

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