Direct black 77 (C.I. 35860)

Direct black 77 (C.I. 35860) Chemische Eigenschaften,Einsatz,Produktion Methoden

• synthetische

  2-Aminobenzene-1,4-disulfonic acid diazo, and Naphthalen-1-amine coupling, again diazo, and 8-Aminonaphthalene-2-sulfonic acid coupling, product to diazo, in alkaline conditions and 4-Amino-5-hydroxynaphthalene-1-sulfonic acid coupling, and then diazo, and 4-Nitrobenzene-1,3-diamine coupling.

• Properties and Applications

  green light grey. water-soluble ash light black, soluble in ethanol. The strong sulfuric acid for gray light black, grey brown for purple diluted. Dye with strong hydrochloric acid solution for violet black, precipitation; Add thick sodium hydroxide solution for Gray light black, precipitation.
  

  Standard	Acid Resistance	Alkali Resistance	Light Fastness	Soaping		Water
  				Fading	Stain	Fading	Stain
  ISO	5	4	5	2		2-3

Direct black 77 (C.I. 35860) Upstream-Materialien And Downstream Produkte

6409-85-4, Direct black 77 (C.I. 35860) Verwandte Suche: