dye|World dye variety

Name:C.I.Solubilised Vat Black 8,C.I.71001

Molecular Structure: anthraquinones

C.I.Solubilised Vat Black 8,C.I.71001,CAS 34599-04-7,871.76,C45H19N3Na2O10S2,Anthrasol Grey IMG

Molecular Formula:C₄₅H₁₉N₃Na₂O₁₀S₂

Molecular Weight: 871.76

CAS Registry Number:34599-04-7

Manufacturing Methods : (a) in the presence of Pyridine , with Chlorosulfonic acid treatment  C.I. Vat Black 8 leuco; (b) in the Pyridine with metal (such as copper, iron, zinc, etc) and Sulfur trioxide source (such as Sulfur trioxide, Chlorosulfonic acid or Methyl chlorosulfonate, etc.) processing  C.I. Vat Black 8. The above two kinds of situation after alkaline, filter out insolubles, remove Pyridine and salting out.

Properties and Applications: blue light grey.

List of Suppliers:

Anthrasol Grey IMG( Hoechst A G )