Preparation
1 parts of?4-Methylbenzene-1,3-diamine??and 2 parts of??mixture of sulfur of 210 ~ 250 ℃ calcination 15 hours, product dissolved in Sodium sulfide and Sodium hydroxide, then add salt, in six hours heated to 240 ℃, again in the 250 ℃ heating for more than 4 hours, make the moisture evaporation (BIOS 1155, – 39)
Properties and Applications
brown. Red brown powder. Insoluble in water, soluble in Sodium sulfide solution for brown, slightly soluble in concentrated sulfuric acid.
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Standard
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Acid Resistance
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Alkali Resistance
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Light Fastness
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Fulling
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Persperation Fastness
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Soaping
|
|
Moderate
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Severe
|
|
ISO
|
3
|
4
|
3-4
|
4
|
5
|
4
|
4
|
|
AATCC
|
3-4
|
5
|
4
|
4
|
|
4-5
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|
