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HomeProduct name listDirect Green 85

Direct Green 85

  • CAS NO.:72390-60-4
  • Empirical Formula: C36H30N7NaO8S2
  • Molecular Weight: 775.79
Direct Green  85 Structural

What is Direct Green 85?

Preparation

3,3′-Dimethylbenzidine double nitriding, first with phenol coupling, and then in acid conditions and aniline diazo, in alkaline conditions and 4-Amino-5-hydroxynaphthalene-2,7-disulfonic acid?and of accidentally coupled coupled nitrogen compounds.

Properties and Applications

green. Dark grey or black powder. Soluble in water for dark green. Cellulose fiber dyeing to 80℃ when the biggest affinity, for the neutral or weak alkali dye bath dyeing, directly, coloring rate is good. Mainly used for cotton, viscose, silk, polyamide fiber dyeing, also suitable for hemp, paper, soap shading and color which manufacture.

Standard Acid Resistance Alkali Resistance Light Fastness Soaping Water
Fading Stain Fading Stain
ISO 5 3 3-4 3-4 3 4 3-4

Safety information for Direct Green 85

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