dye|World dye variety

Name:C.I.Direct Green 11,C.I.27540

Molecular Structure: Double azo class

C.I.Direct Green 11,C.I.27540,CAS 6226-95-5,716.65,C32H22N4Na2O9S2,Erie Brilliant Green VB

Molecular Formula:C₃₂H₂₂N₄Na₂O₉S₂

Molecular Weight: 716.65

CAS Registry Number:6226-95-5

Manufacturing Methods :  7-Aminonaphthalene-1-sulfonic acid diazo, and 2-Ethoxynaphthalen-1-amine coupling, product to diazo, and 4,5Dihydroxynaphthalene-1-sulfonic acid coupling.

Properties and Applications:  blue light green. Soluble in water for blue light green, also soluble in solution, fiber, slightly soluble in alcohol, insoluble in other organic solvents. In the light of sulfuric acid is palm black, dilute for shallow blue light after green; In nitric acid for olive, and brown to yellow. The dye solution to join strong hydrochloric acid for blue light green, precipitation; Adding concentrated sodium hydroxide solution for the gray light blue, there is precipitation.

List of Suppliers:

Erie Brilliant Green VB( Allied chemical Corporation  )