dye|World dye variety

Name:C.I.Food Orange 1,C.I.15970

Molecular Structure: Single azo class

C.I.Food Orange 1,C.I.15970,CAS 1934-20-9,350.33,C16H11N2NaO4S

Molecular Formula:C₁₆H₁₁N₂NaO₄S

Molecular Weight: 350.33

CAS Registry Number:1934-20-9

Manufacturing Methods : aniline diazo, and 6-Hydroxynaphthalene-2-sulfonic acid coupling.

Properties and Applications: bright orange. Soluble in water for gold orange, slightly soluble in ethanol (golden orange), acetone and soluble fiber element, insoluble in other organic solvents. The strong sulfuric acid for gold in orange, diluted in gold still orange; In nitric acid solution for brown and red for change. The dye solution to join strong hydrochloric acid for gold orange; Add 10% sodium carbonate (no change solution; Add thick sodium hydroxide solution for palm light orange. And C.I. Acid orange 12 the same chemical structure.

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