Лако-красочные материалы — производство

Stilbene dyes are in most cases mixtures of dyes of indeterminate constitution that are formed from the condensation of sulfonated nitroaromatic compounds in aqueous caustic alkali, either alone or with other aromatic compounds, typically arylamines [1]. The sulfonated nitrostilbene (10) is the most important nitroaro­matic, and the aminoazobenzenes are the most important arylamines. C. I. Direct Orange 34, 40215 [1325-54-#], the condensation product(s) of (10) and the ami — noazobenzene (11), is a typical stilbene dye.