Definition of Phthaleins. Meaning of Phthaleins. Synonyms of Phthaleins

Here you will find one or more explanations in English for the word Phthaleins. Also in the bottom left of the page several parts of wikipedia pages related to the word Phthaleins and, of course, Phthaleins synonyms and on the right images related to the word Phthaleins.

Definition of Phthaleins

Phthalein
Phthalein Phthal"e*in, n. [See Phthalic.] (Chem.) One of a series of artificial organic dyes made as condensation products of the phenols with phthalic acid, and well represented by phenol phthale["i]n. Their alkaline solutions are fluorescent. Phenol phthalein, a white or yellowish white crystalline substance made from phthalic acid and phenol. Its solution in alkalies is brilliant red, but is decolorized by acids, and as this reaction is exceedingly delicate it is used as an indicator.

Meaning of Phthaleins from wikipedia

- Phthalein dyes are a class of dyes mainly used as pH indicators, due to their ability to change colors depending on pH. They are formed by the reaction...
- Doernberg, S; Horner, A (1953). "Laxatives: chemical structure and potency of phthaleins and hydroxyanthraquinones". Journal of the American Pharmaceutical ****ociation...
- Bromothymol blue (also known as bromothymol sulfone phthalein and BTB) is a pH indicator. It is mostly used in applications that require measuring substances...
- and pink in basic solutions. It belongs to the class of dyes known as phthalein dyes. Phenolphthalein is slightly soluble in water and usually is dissolved...
- earned his doctorate in 1874 under Adolf von Baeyer with his study of phthaleins. Fischer remained with Baeyer in Str****burg as an independent research...
- Beilstein 5-19-03-00457 Tamura, Z.; Maeda M. (1997). "Differences between phthaleins and sulfonphthaleins". Yakugaku Z****hi (in ****anese). 117 (10–11): 764–770...
- with acid and base, and thus serve as pH indicators. Zelyonka attack Phthalein dye Wikimedia Commons has media related to Triarylmethane dyes. Gessner...
- synthesis and description of the plant dye indigo, the discovery of the phthalein dyes, and the investigation of polyacetylenes, oxonium salts, nitroso...
- yellowish-green fluorescence. The rhodamines, which are closely related to the phthaleins, are formed by the condensation of the alkyl metaaminophenols with phthalic...
- amide Lactim, a cyclic imide Lactide, a cyclic diester Halolactonization Phthalein "lactones", Compendium of Chemical Terminology, 2.3.3, International Union...