ダイレクト ピユア エロー 5G

外観

うすい黄色～褐色粉末～結晶

使用

Direct Yellow 8 is an organic dye used with textiles, such as polyurethane fibers and cotton-?polyurethane blends.

製造方法

2-(4-Aminophenyl)-6-methylbenzo[d]thiazole-7-sulfonic acid diazo, and 3-Oxo-N-phenylbutanamide coupling

Properties and Applications

colourful green light yellow. Soluble in water for yellow, soluble in soluble fiber element, slightly soluble in alcohol, almost insoluble in other organic solvents. For the strong sulfuric acid in bright yellow, yellow after diluted precipitation; In nitric acid solution for bright yellow; In strong hydrochloric acid partly dissolved, for orange. Apply to wool, polyamide fiber, silk dyeing and printing, also used in leather color.