dye|World dye variety

Name:C.I.Solubilised Vat Red 1,C.I.73361

Molecular Structure: Thioindigo class

C.I.Solubilised Vat Red 1,C.I.73361,CAS 3875-72-7,599.42,C18H10Cl2Na2O8S4,Vat Pink S-3B,Solubilised Vat Pink IR

Molecular Formula:C₁₈H₁₀Cl₂Na₂O₈S₄

Molecular Weight: 599.42

CAS Registry Number:3875-72-7

Manufacturing Methods : (a) in the presence of Pyridine , with Chlorosulfonic acid treatment C.I. Vat Red 1 leuco : (b) used in Pyridine metal (such as copper, iron, zinc, etc) and Sulfur trioxide source (such as Sulfur trioxide, Chlorosulfonic acid or Methyl chlorosulfonate) processing C.I. Vat Red 1. The above two kinds of circumstances are through with alkali, filter out the insoluble,remove Pyridine and salting-out.

Properties and Applications: bright blue light pink to red colourful blue-ray. Greyish-white to pink powder, soluble in water, water solution is red blue light, not soluble in ethanol and other organic solvents: the strong sulfuric acid for green light olive, and for the red light purple diluted. Its water solution have fluorescence, under fluorescent light for purple, salt and is very sensitive to light. Mainly used for the cotton fabric dyeing and printing, although have brittle because its bright light is still widely used. Can direct printing, the printing and dyeing discharge printing. Will dye polyester/cotton, Peacekeeping/cotton and wool, silk fabric, etc. Use polyester melt method dye, the color than cotton bright-coloured.

List of Suppliers:

Vat Pink S-3B,Solubilised Vat Pink IR

Shanxi Linfen Dyeing Chemicals (Group) Co., Ltd.