Preparation
9,10-Dioxo-9,10-dihydroanthracene-2,7-disulfonic acid?under pressure and Potassium chlorate heating, and at the same time will be generated 2, 7 – dihydroxyanthraquinone separation open, will product ?1,2,7-Trihydroxyanthracene-9,10-dione?sulfonation, and translated into Sodium salt.
Properties and Applications
dark red (chromium). Soluble in water and ethanol. In concentrated sulfuric acid for yellow red, dilution after brilliant yellow.
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Standard
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Ironing Fastness
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Light Fastness
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Fulling
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Persperation Fastness
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Soaping
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Water
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|
Alkali
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Acid
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|
AATCC
|
Dry 2,wet 5
|
7
|
3
|
|
4
|
4
|
5
|
