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必应染料-您身边的染料专家

Direct Brown 171

Name:C.I.Direct Brown 171,C.I.30040

Molecular Structure: trisazo class

C.I.Direct Brown 171,C.I.30040,794.77,C35H28N10Na2O6S2,Paradiazol Brown RD

C.I.Direct Brown 171,C.I.30040,794.77,C35H28N10Na2O6S2,Paradiazol Brown RD

Molecular Formula:C35H28N10Na2O6S2

Molecular Weight: 794.77

CAS Registry Number:

Manufacturing Methods :  4-(4-Aminophenyl)benzenamine double nitriding, first and 2,4-Diamino-5-methylbenzenesulfonic acid coupling, and then and 4-Aminonaphthalene-1-sulfonic acid diazo, and Benzene-1,3-diamine coupled to accidentally coupled nitrogen compounds.

Properties and Applications:  red light brown. Slightly soluble in water for orange brown, soluble in ethanol for yellow brown. The strong sulfuric acid for dark red to blue light in brown light purple, for yellow brown after diluted, precipitation. The dye solution to join strong hydrochloric acid have dark red light brown precipitation; Add thick sodium hydroxide solution for orange brown.

Standard Acid Resistance Alkali Resistance Light Fastness Soaping Water
Fading Stain Fading Stain
ISO 4-5 4 2 4 3-4

List of Suppliers:

Paradiazol Brown RD( Francolor Pigments SA )


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