- Country of manufactureUkraine
Alizarine represents orange-red crystals (needles) of triklinichesky or rhombic system. It is dissolved in water of 0,034 g / 100 (100 °C), we will dissolve in ethanol, methanol, ether, benzene, acetic acid, pyridine, carbon sulfur, solutions of alkalis. It is easily sublimated. Recrystallize from ethanol.
Alizarine forms the insoluble intensively painted chelate complexes with ions of multivalent metals — so-called alizarine lakes). The aluminum complex of alizarine is applied to preparation of art paints and in polygraphy.
Formation of insoluble alizarine lakes was applied in mordant dyeing of fabrics — dyeing by alizarine on aluminum pickle gives red color, on chromic — brown, on iron — violet colors, however with the advent of substantive dyes rosing has lost the value because of complexity of technology.
Alizarine (trade names — Mordant Red 11, CI 58000) — important semi-product in synthesis of dyes, in particular, sulphonation of alizarine receive red alizarine color With — reagent for photometric definition of cations of aluminum, scandium, yttrium and fluoride ions. On it one of shades of red color — alizaric red color has received the name.