Direct Black 11

Product Name
Direct Black 11
Chemical Name
Direct Black 11
Synonyms
Direct Black 11;C.I.Direct Black 11:C.I.30240
CBNumber
CB69702877
Formula Weight
0
MOL File
Mol file
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Hazard and Precautionary Statements (GHS)

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Direct Black 11 Chemical Properties,Usage,Production

Preparation

4-(4-Aminophenyl)benzenamine double nitriding, and aniline diazo, in alkaline conditions and 4-Amino-5-hydroxynaphthalene-2,7-disulfonic acid?and products in the coupling acid conditions coupled, then and 4-Chlorobenzene-1,3-diamine coupling.

Properties and Applications

green and black. For to black soluble in water, soluble in ethanol for blue-ray gray. The strong sulfuric acid solution for the red light in blue, diluted red for sauce; In strong hydrochloric acid for purple solution. The dye solution to join strong hydrochloric acid have sauce red precipitate; Add thick sodium hydroxide solution for blue-ray gray, precipitation.

Standard Acid Resistance Alkali Resistance Light Fastness Soaping Water
Fading Stain Fading Stain
ISO 3 5 3 1-2 2

Direct Black 11 Preparation Products And Raw materials

Raw materials

Preparation Products

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