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HomeProduct name listReactive Black 8

Reactive Black 8

  • CAS NO.:12225-26-2
  • Molecular Weight: 0
  • MDL number: MFCD01770856

What is Reactive Black 8?

Preparation

2-Amino-4-nitrophenol diazo, and 4-Amino-5-hydroxynaphthalene-2,7-disulfonic acid?coupling, chromium complexation, and 2,4,6-Trichloro-1,3,5-triazine condensation, with four ammonia, and salting-out.

Properties and Applications

blue ash. Black powder. The strong sulfuric acid for purple, diluted still for purple; In nitric acid for black purple, diluted into a navy; Water solution is blue black, add 1 Moore sodium hydroxide solution is still black, continue to join insurance powder into light yellow, add a boric acid sodium is still light yellow. Used for cotton, viscose, linen, silk, polyamide fiber and wool dyeing or of the volume of disseminated and direct printing.

Standard Light Fastness Oxygen bleaching Persperation Fastness Soaping
Fading Stain Fading Stain Fading Stain
ISO 6 (grey) 3 ( green ) 5 4-5 (green) 3 5 6

Safety information for Reactive Black 8

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