Basic information Safety Supplier Related

Direct Blue 45

Basic information Safety Supplier Related

Direct Blue 45 Basic information

Product Name:
Direct Blue 45
Synonyms:
  • Direct Blue 45
  • C.I.Direct Blue 45:C.I.24310
MW:
0
Mol File:
Mol File
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Direct Blue 45 Usage And Synthesis

Preparation

3,3′-Dimethoxylbenzidine double nitriding, first and 7-Hydroxynaphthalene-1-sulfonic acid, and then in three alkaline conditions and 4-Amino-5-hydroxynaphthalene-1-sulfonic acid coupling.

Properties and Applications

dark blue. Soluble in water for hidden cyan, soluble in ethanol for purple. The strong sulfuric acid for green light blue, blue for red after diluted. The dye solution to join strong hydrochloric acid as dark blue; Add thick sodium hydroxide solution for purple.

Standard Acid Resistance Alkali Resistance Light Fastness Soaping Water
Fading Stain Fading Stain
ISO 5 4 1 4 2-3
AATCC 4-5 4-5 2 2-3 2-3

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