methyl violet — noun Usage: often capitalized M&V : any of several basic dyes that are methyl derivatives of pararosaniline: as a. or methyl violet B : a dye consisting essentially of pentamethyl pararosaniline chloride and used chiefly in making organic… … Useful english dictionary
Colored smoke — is a kind of smoke created by an aerosol of small particles of a suitable pigment or dye. Red Arrows air display team Colored smoke can be used for smoke signals, often in a military context. It can be produced by smoke grenades, or by various… … Wikipedia
Oil Blue A — Solvent Blue 36 Oil Blue A, also called Solvent Blue 36, Solvent Blue A, Oil Blue G, Blue AP, 1,4 bis(isopropylamino) anthraquinone, and CI 61551, is a blue dye derived from anthraquinone. It has the appearance of a dark bluish violet powder,… … Wikipedia
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
Solvatochromism — is the ability of a chemical substance to change color due to a change in solvent polarity. Negative solvatochromism corresponds to hypsochromic shift, positive solvatochromism corresponds to bathochromic shift with increasing solvent polarity.… … Wikipedia
painting — /payn ting/, n. 1. a picture or design executed in paints. 2. the act, art, or work of a person who paints. 3. the works of art painted in a particular manner, place, or period: a book on Flemish painting. 4. an instance of covering a surface… … Universalium
Watercolor painting — For other uses, see Watercolors (disambiguation). An artist working on a watercolor using a round brush Watercolor (US) or watercolour (UK and Commonwealth), also aquarelle from French, is a painting method. A watercolor is the … Wikipedia
photography, technology of — Introduction equipment, techniques, and processes used in the production of photographs. The most widely used photographic process is the black and white negative–positive system (Figure 1 >). In the camera the lens projects an image of… … Universalium
Dye-sensitized solar cell — A selection of dye sensitized solar cells A dye sensitized solar cell (DSSC, DSC or DYSC[1]) is a low cost solar cell belonging to the group of thin film solar cells.[2] … Wikipedia
Nonaqueous titration — is the titration of substances dissolved in nonaqueous solvents. It is the most common titrimetric procedure used in pharmacopoeial assays and serves a double purpose: it is suitable for the titration of very weak acids and very weak bases, and… … Wikipedia
