Acid Brown 87
Name:C.I.Acid Brown 87,C.I.17596
Molecular Structure: Single azo class
C.I.Acid Brown 87,C.I.17596,CAS 8005-58-1,543.48,C22H15N3Na2O7S2,Acid Brown DR,Brown JRF
Molecular Formula:C22H15N3Na2O7S2
Molecular Weight: 543.48
CAS Registry Number: 8005-58-1
Manufacturing Methods : 4-Aminobenzenesulfonic acid diazo, in alkaline conditions and 0.6 Moore 4-Hydroxy-6-(phenylamino)naphthalene-2-sulfonic acid and 0.4 Moore 4-Hydroxy-7-(phenylamino)naphthalene-2-sulfonic acid coupling.
Properties and Applications: red light brown. Soluble in water is red light brown orange, slightly soluble in ethanol for orange brown. The strong sulfuric acid for cherry red, for orange brown after diluted. Adding strong hydrochloric acid solution for orange brown; Add thick sodium hydroxide solution for red orange brown. Used for wool, silk and polyamide fiber dyeing and printing.
List of Suppliers:
Acid Brown DR
Igenal Brown JRF( IG Farbenindustrie AG )