Indigo powder

It is a kind of bleu powder reducing dye, and is the initial product of indigo. It is produced by stoving the filter cake from the former section. It is insoluble in water, ethanol and ethyl ether, but soluble inmelt benzoyl oxide. Itis mainly used in the dyeing and printing of cotton fiber, and is the special dye for jean fabric. It can also be processed into food dye and biochemical agent.
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Products Details

It is a kind of bleu powder reducing dye, and is the initial product of indigo. It is produced by stoving the filter cake from the former section. It is insoluble in water, ethanol and ethyl ether, but soluble inmelt benzoyl oxide. Itis mainly used in the dyeing and printing of cotton fiber, and is the special dye for jean fabric. It can also be processed into food dye and biochemical agent.

Appearance

Homogenic dark blue powder

Color light

similar as the standard sample

Content,%

≥ 94.0% ,96.0%

Moisture content,%

≤ 1.0%

Strength,%

equal to 100 percent of standard sample

PH value

7

Content of ferric ions, ppm

≤ 200PPM
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