Direct Orange 39

Product Name:Direct Orange 39 200%
Molecular Structure: Stilbenes

CAS Registry Number:1325-54-8
Manufacturing Methods : in reflux conditions, sodium hydroxide solution in(E)-2-(2-sulfo-4-nitrostyryl)-5-nitrobenzenesulfonic acid with two 4-Aminobenzenesulfonic acid sodium diazo with 4-Aminobenzenesulfonic acidcoupled with heating products.
Properties and Applications: red light orange. Red brown powder. Soluble in water for golden brown, solubility of 50 g/L (60 ℃), 60 g/L (97 ℃), slightly soluble in alcohol. In the strong sulfuric acid as dark blue, orange for gold after diluted. The dye solution to join strong hydrochloric acid have yellow olive brown precipitation; Add thick sodium hydroxide solution have orange precipitation. Cellulose fiber of dyeing, in 80 ℃ maximum when affinity, is suitable for the neutral, weak alkali dyeing. Hard to a little sensitive. In dyeing copper and iron ion colored light basic unchanged. Mainly used in viscose and viscose fabric dyeing and printing, Exhaust dyeing, printing and can be directly to white color, also can used for leather and paper shading, knitting fabric and carpet can be used and disperse dyestuff used for the high temperature dyeing polyester/stick blended fabric.
Counter product:Solar Yellow 3R;Paranol Orange 2GL;Dicorel Orange LGG;Cuprofix Orange 2GL;DirektorangeSMVflsig;Derma Fast Orange W-G
Use: For cellulose fiber fabrics such as cotton and viscose fiber dyeing, also used in silk polyamide fiber and blended fabric dyeing, can also be used for leather, wood and plastic coloring.Can also be used in the manufacture of ink
Packing: 25KG Carton