Leuco Sulphur Brown 23

Leuco Sulphur Brown 23 化学特性,用途語,生産方法

• 製造方法

  75 parts of??4-Methylbenzene-1,3-diamine?,?62.5 parts of??4-Nitrobenzenamine, 16.2 parts of??Benzene-1,4-diamine?and 287 parts of mixture of sulfur in the 220 ~ 240 ℃ calcination 10 hours, and its products in the Sodium sulfide solution in 90 ~ 95 ℃ processing, sifting. Garnish with sulfuric acid precipitation. Use different number of the following example intermediates, in a similar way, get more partial brown color of dye: 93.5 parts of?4-Methylbenzene-1,3-diamine?, ?47 parts of?4-Nitrobenzenamine, 40 parts of ?Benzene-1,4-diamine, 380 parts of?sulphur.

• Properties and Applications

  brown light olive. In the Sodium sulfide solution solubility good, for yellow brown; In concentrated sulfuric acid for yellow brown, dilution after yellow brown precipitation.
  

  Standard	Acid Resistance	Alkali Resistance	Light Fastness	Fulling	Persperation Fastness	Soaping
  						Moderate	Severe
  ISO	3-4	4	4	4-5		4-5	3-4

Leuco Sulphur Brown 23 上流と下流の製品情報