Preparation
1-Amino-4-nitro-2-anthraquinonecarboxylic acid and 2-Amino-3-chloroanthracene-9,10-dione condensation, make its formation mercaptan, then cyclization, reduction and Benzoylation.
Properties and Applications
dark blue. Blue black powder. In concentrated sulfuric acid to yellow. Alkaline reduction leuco for dark purple; Acid reduction leuco for red light brown. Direct sex good, good levelness. Used for cotton fabric dyeing, can also be used to resist and discharge
Standard
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Ironing Fastness
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Chlorine bleach
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Light Fastness
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Mercerized
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Oxygen bleach
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Soaping
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Fading
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Stain
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ISO
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5
|
4-5
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7-8
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4-5
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4-5
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4-5
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5
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