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Topics related to "Shades of Gray in full colour These memoirs by a reckless, mordant,"

	mordant mordant [Fr.,=biting], substance used in dyeing to fix certain dyes (mordant dyes) in cloth. Either the mordant (if it is colloidal) or a colloid produced by the mordant adheres to the fiber, attracting and fixing the colloidal mordant dye (see colloid ); the insoluble, colored precipitate that is... Read more
	alizarin alizarin , or 1,2-dihydroxyanthraquinone, mordant vegetable dye obtained originally from the root of the madder plant ( Rubia tinctorum ), in which it occurs as a glucoside. The term also includes a group of synthetic dyestuffs prepared from coal-tar derivatives. A method for the synthesis of... Read more
	hematoxylin haematoxylin A compound used in its oxidized form (haematein) as a blue dye in optical microscopy, particularly for staining smears and sections of animal tissue. It stains nuclei blue and is frequently used with eosin as a counterstain for cytoplasm. Haematoxylin requires a mordant, such as iron... Read more
	verdigris verdigris , one of three copper acetates: blue verdigris, Cu(CH 3 COO) 2 ·CuO·6H 2 O; green verdigris, 2Cu(CH 3 COO) 2 ·CuO·6H 2 O; or neutral verdigris, Cu(CH 3 COO) 2 ·H 2 O; or a mixture of them. It is a poisonous gray-green to green-blue substance that is... Read more
	Epsom salts Epsom salts common name for magnesium sulfate heptahydrate, MgSO 4 ·7H 2 O, a water-soluble bitter-tasting compound that occurs as white or colorless needle-shaped crystals. It was first prepared from the waters of mineral springs at Epsom, England; it also occurs as the mineral epsomite.... Read more
	fuchsin fuchsin or magenta , bright red dyestuff consisting of the mixed hydrochlorides or acetates of rosaniline and pararosaniline. It is composed of small crystals possessing a brilliant green sheen; when dissolved they produce a red solution, which dyes animal fibers directly and vegetable fibers... Read more
	tartar emetic tartar emetic poisonous, odorless, transparent rhombic crystals or white powder with a metallic, sweetish taste. Chemically, it is potassium antimony tartrate, KSbC 4 H 4 O 7 · 1/2 H 2 O. It is used as a mordant in dyeing. Medically, it was formerly used as an emetic and expectorant, to... Read more
	Cyril Connolly Cyril Connolly , 1903-74, English critic and editor, b. Coventry, England. After attending the Univ. of Oxford, he began his career as a journalist. With Stephen Spender he founded Horizon (1939-49), a small literary magazine that reflected Connolly's own iconoclastic and mordant attitudes... Read more
	cochineal cochineal , natural dye obtained from an extract of the bodies of the females of the cochineal bug ( Dactylopius confusus ) found on certain species of cactus, especially Nopalea coccinellifera, native to Mexico and Central America. The insects' bodies contain the pigment called carminic acid,... Read more
	zinc sulfate zinc sulfate chemical compound ZnSO 4 , a very water soluble, transparent, colorless, crystalline compound. It is commonly used as the heptahydrate, ZnSO 4 ·7H 2 O, and is commonly called white vitriol; it occurs naturally as the mineral goslarite, and can be prepared by reacting zinc with... Read more