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HomeProduct name list3,3'-[1,1'-Biphenyl-4,4'-diylbis(azo)]bis(6-amino-4-hydroxynaphthalene-2-sulfonic acid sodium) salt

3,3'-[1,1'-Biphenyl-4,4'-diylbis(azo)]bis(6-amino-4-hydroxynaphthalene-2-sulfonic acid sodium) salt

  • CAS NO.:3626-23-1
  • Empirical Formula: C32H22N6Na2O8S2
  • Molecular Weight: 728.66202
3,3'-[1,1'-Biphenyl-4,4'-diylbis(azo)]bis(6-amino-4-hydroxynaphthalene-2-sulfonic acid sodium) salt Structural

What is 3,3'-[1,1'-Biphenyl-4,4'-diylbis(azo)]bis(6-amino-4-hydroxynaphthalene-2-sulfonic acid sodium) salt?

Preparation

4-(4-Aminophenyl)benzenamine double nitriding, in alkaline conditions and 6-Amino-4-hydroxynaphthalene-2-sulfonic acid? (2 Moore) coupled.

Properties and Applications

blue ash. Soluble in water (for violet black) and soluble fiber element, slightly soluble in ethanol is shallow purple, insoluble in other organic solvents. The strong sulfuric acid in blue, diluted for purple, have precipitation. The dye solution to join strong hydrochloric acid for dark, precipitation; Add thick sodium hydroxide solution for purplish red color, have precipitation.

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

Properties of 3,3'-[1,1'-Biphenyl-4,4'-diylbis(azo)]bis(6-amino-4-hydroxynaphthalene-2-sulfonic acid sodium) salt

EPA Substance Registry System C.I. Direct Black 29 (3626-23-1)

Safety information for 3,3'-[1,1'-Biphenyl-4,4'-diylbis(azo)]bis(6-amino-4-hydroxynaphthalene-2-sulfonic acid sodium) salt

Computed Descriptors for 3,3'-[1,1'-Biphenyl-4,4'-diylbis(azo)]bis(6-amino-4-hydroxynaphthalene-2-sulfonic acid sodium) salt

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