Hofmann violet
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Hofmann violet — Hof·mann violet (hawfґmahn) [August Wilhelm von Hofmann, German chemist, 1818–1892] dahlia … Medical dictionary
hofmann's violet — noun Usage: usually capitalized H : any of several violet dyes that are alkylated fuchsines made by treating rosaniline with an alkyl halide (as ethyl iodide) … Useful english dictionary
dye — dyable, dyeable, adj. dyer, n. /duy/, n., v., dyed, dyeing. n. 1. a coloring material or matter. 2. a liquid containing coloring matter, for imparting a particular hue to cloth, paper, etc. 3. color or hue, esp. as produced by dyeing. 4. of the… … Universalium
Salvia divinorum — Salvia divinorum … Wikipedia
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Phosphorus — This article is about the chemical element. For other uses, see Phosphorus (disambiguation). silicon ← phosphorus → sulfur … Wikipedia
Molecular model — A molecular model, in this article, is a physical model that represents molecules and their processes. The creation of mathematical models of molecular properties and behaviour is molecular modelling, and their graphical depiction is molecular… … Wikipedia
William Henry Perkin — Infobox Scientist name = Sir William Henry Perkin box width = image width = caption = William Perkin (1838 1907) birth date = March 12, 1838 birth place = death date = July 14, 1907 death place = residence = citizenship = nationality = ethnicity … Wikipedia
COLORANTS — Les matières colorantes se caractérisent par leur capacité à absorber les rayonnements lumineux dans le spectre visible (de 400 à 700 nm). Tous les composés répondant à cette définition se différencient par leur structure chimique, organique ou… … Encyclopédie Universelle
Ethereal being — Water nymph by John Collier, 1923. Ethereal beings, according to some belief systems and occult theories, are mystic entities that usually are not made of ordinary matter. Despite the fact that they are believed to be essentially incorporeal,… … Wikipedia
