Leuco Sulphur Brown 21

Leuco Sulphur Brown 21 化学特性,用途語,生産方法

• 製造方法

  80 parts of??4-Methylbenzene-1,3-diamine?, 48 parts of?4-Nitrobenzenamine?and 283 parts of sulfur was stirred at?200 ~ 210 ℃ calcination 10 hours, then use Sodium sulfide solution treatment its product (BISO 1155, 39).

• Properties and Applications

  yellow brown.
  

  Standard	Acid Resistance	Alkali Resistance	Light Fastness	Fulling	Persperation Fastness	Soaping
  						Moderate	Severe
  ISO	1-2	4	4	4	4-5	4	4

Leuco Sulphur Brown 21 上流と下流の製品情報