sodium 5-[(2-hydroxynaphthyl)azo]naphthalenesulphonate Chemical Properties

EPA Substance Registry System

1-Naphthalenesulfonic acid, 5-[(2-hydroxy-1-naphthalenyl)azo]-, monosodium salt (5850-93-1)

sodium 5-[(2-hydroxynaphthyl)azo]naphthalenesulphonate Usage And Synthesis

Preparation

5-Aminonaphthalene-1-sulfonic acid diazo, and Naphthalen-2-ol coupling.

Properties and Applications

red. Soluble in hot water for red, slightly soluble in cold water and ethanol. The strong sulfuric acid to red light purple, diluted precipitation is brown; In nitric acid solution for yellow brown; In a dilute sodium hydroxide solution for yellow brown solution. In water solution to join hydrochloric acid with brown precipitation; Add sodium hydroxide solution to become yellow.

sodium 5-[(2-hydroxynaphthyl)azo]naphthalenesulphonate (5850-93-1)Related Product Information

• ACID YELLOW 99
• ACID YELLOW 17
• ACID YELLOW 25 (C.I. 18835)
• Acid Black 1
• Acid Blue 83
• sodium bis[2-[(4,5-dihydro-3-methyl-5-oxo-1-phenyl-1H-pyrazol-4-yl)azo]benzoato(2-)]chromate(1-)
• ACID RED 195
• Acid Violet 109
• ACID YELLOW 11
• Acid Red 18
• Acid Red 73
• ACID BLUE 80
• Acid Violet 43
• trisodium bis[3-hydroxy-4-[(2-hydroxy-1-naphthyl)azo]-7-nitronaphthalene-1-sulphonato(3-)]chromate(3-)
• ACID RED 106
• Acid Red 57
• Acid Black 107
• Acid Blue 168