Direct Blue 157

Direct Blue 157 Struktur
CAS-Nr.
Englisch Name:
Direct Blue 157
Synonyma:
Direct Blue 157;C.I.Direct Blue 157:C.I.31680
CBNumber:
CB89702912
Summenformel:
Molgewicht:
0
MOL-Datei:
Mol file

Direct Blue 157 Eigenschaften

Sicherheit

Direct Blue 157 Chemische Eigenschaften,Einsatz,Produktion Methoden

synthetische

2′-Methoxy-4′-amino-5′-chlorooxanilic acid diazo, and 5-Aminonaphthalene-2-sulfonic acid coupling, product to diazo, and 7-Hydroxynaphthalene-2-sulfonic acid coupling, and then 2-(4-Aminophenylamino)-2-oxoacetic acid hydrolysis base, again diazo, and 4,5Dihydroxynaphthalene-1-sulfonic acid coupling.

Properties and Applications

dark blue. Soluble in water for blue, soluble in ethanol. concentrated sulfuric acid in olive green, diluted to blue. The dye solution with strong hydrochloric acid blue precipitation; Add thick dark for sodium hydroxide solution.
Standard Acid Resistance Alkali Resistance Light Fastness Soaping Water
Fading Stain Fading Stain
ISO 3-4 2-3 4 2-3 3-4

Direct Blue 157 Upstream-Materialien And Downstream Produkte

Upstream-Materialien

Downstream Produkte


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