C.I. Sulphur Brown 2 (8CI)

The 4-Methylbenzene-1,3-diamine (2 Moore) and Oxalic acid (1 Moore) in 200 ℃ reaction, the condensation product with Sodium polysulfide in 220 ~ 300 ℃ calcination, until the happening of htdrogen sulfide to stop. Similar dye by (N-3-amino-4- methyl-phenyl) oxamate?and where did the 4-Methylbenzene-1,3-diamine etc molecular mixture, or with Phthalic acid, Succinic acid?or Mercaptoacetic acid?and Oxalic acid?instead of vulcanization.

dark yellow brown. In the Sodium sulfide solution good solubility.

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