dye|World dye variety

Name:C.I.Sulphur Brown 7,C.I.53275

Molecular Structure:

C.I.Sulphur Brown 7,C.I.53275,CAS 1327-10-2,Kayakai Homodye Brown TF-S

CAS Registry Number:1327-10-2

Manufacturing Methods : 1,8-Dinitronaphthalene with Sodium sulfide solution at 90 ℃ reduction, and and Sodium polysulfide in Copper sulfate monohydrate and Sodium chloride under existing roasting, gradually heating up to 270 ℃ (BIOS 1155, 6)

Properties and Applications:  dark red light brown. Red brown powder. In the Sodium sulfide solution for red brown; In acetic acid and metal chromium to become red. In the Sodium hydroxide solution partly dissolved, for yellow brown; In concentrated sulfuric acid to dark brown, dilution with brown precipitation. Used for cotton, hemp, viscose fabric dyeing

List of Suppliers:

Kayakai Homodye Brown TF-S( Nippon Kayak u Co Ltd )