- leuco form
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The colorless form of a dye created as a result of its insoluble form interacting with an alkaline liquor. Color returns to the dye upon oxidation.
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leuco form
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Leuco dye — A leuco dye is a dye whose molecules can acquire two forms, one of which is colorless.For example, the spiro form of an oxazine is a colorless leuco dye; the conjugated system of the oxazine and another aromatic part of the molecule is separated… … Wikipedia
Leuco- — Leu co (l[=u] k[ o] ), Leuc Leuc (l[=u]k ). pref. [Gr. leyko s white.] A combining form signifying white, colorless; specif. (Chem.), denoting an extensive series of colorless organic compounds, obtained by reduction from certain other colored… … The Collaborative International Dictionary of English
leuco- — [lo͞o′kō, lo͞o′kə] combining form 1. white, weakly colored, or colorless [leucoplast] 2. leukocyte: Also, before a vowel, leuc … English World dictionary
leuco- — (also leuko ) combining form 1》 white: leucoma. 2》 representing leucocyte. Origin from Gk leukos white … English new terms dictionary
leuco- — a word element meaning white . Also, leuko ; (before vowels), leuc . {Greek leuko , combining form of leukos} …
leuco- — comb. form white. Etymology: Gk leukos white … Useful english dictionary
Thermochromism — is the ability of substance to change color due to a change in temperature. A mood ring is an excellent example of this, but it has many other uses. Thermochromism is one of several types of chromism.The two basic approaches are based on liquid… … Wikipedia
Malachite green — Malachite green … Wikipedia
Crystal violet lactone — (CVL) is a leuco dye, a lactone derivate of crystal violet 10B. In pure state it is a slightly yellowish crystalline powder, soluble in nonpolar or slightly polar organic solvents. The central carbon in the leuco form is in a tetraedric… … Wikipedia
Crystal violet — IUPAC name Tris(4 (dimethylamino)phenyl)methylium chloride[ … Wikipedia
