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Synthesis of some new thiapyrylium and pyrylium laser dyes

✍ Scribed by Jinlong Zhang; Zhenghua Zhu


Publisher
Elsevier Science
Year
1995
Tongue
English
Weight
248 KB
Volume
27
Category
Article
ISSN
0143-7208

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## Abstract A new series of sulphur dyes was prepared by fusion of aminoquinones and aryl‐azo compounds with sodium polysulphide. These dyes possessed all round good fastness properties and their tendering effects on cellulosic materials were estimated. The complex chemical nature of the prepared d