Medical Definition of Tropeolins
1. A group of azo dyes used as indicators; e.g., methyl orange. Origin: G. Tropaios, pertaining to a turning or change, fr. Trope, a turn (05 Mar 2000)
Lexicographical Neighbors of Tropeolins
Literary usage of Tropeolins
Below you will find example usage of this term as found in modern and/or classical literature:
1. Food Inspection and Analysis: For the Use of Public Analysts, Health by Albert Ernest Leach (1920)
"... for tropeolins*—Moisten a small portion of the material with a few drops of
dilute hydrochloric acid. The formation of a reddish or bluish color shows ..."
2. The Medical Student's Manual of Chemistry by Rudolph August Witthaus (1902)
"... for use in the manufacture of a number of dyes, among which are Campobello
yellow and the tropeolins. It crystallizes in colorless, silky plates, ..."
3. Text-book of Chemistry: Inorganic and Organic, with Toxicology; for Students by Rudolph August Witthaus (1919)
"... for use in the manufacture of a number of dyes, among which are Campobello
yellow and the tropeolins. It crystallizes in colorless, silky plates, ..."
4. Hearings Before the Committee ...: March 11-15, 17-22, 24, 1902 on the Pure by United States Congress. House. Committee on Interstate and Foreign Commerce, United States 57th Congress, 1st session, 1901-1902. House. [from old catalog] (1902)
"... such as eosine, erythrosin; nitro compounds, such as naphthol yellow and
Victoria yellow; diazo compounds, such as tropeolins and xylidine red. ..."
5. Report of the Connecticut Agricultural Experiment Station, New Haven, Conn (1906)
"Coal-tar dyes, belonging either to the nitro-colors or azo-colors ("tropeolins"),
were detected in fourteen samples. Analyses of the samples free from ..."
6. The Budget Report of the State Board of Finance and Control to the General by Governor, Connecticut Board of Finance and Control, Connecticut, Board of Finance and Control (1906)
"Coal-tar dyes, belonging either to the nitro-colors or azo-colors ("tropeolins"),
were detected in fourteen samples. Analyses of the samples free from ..."
7. Chemisches Zentralblatt by Deutsche Chemische Gesellschaft (1906)
"... die Anwendung des tropeolins 00, am besten in alkoh. Leg., bei der Bert, der
freien Mineralsäuren vor. ..."
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