Acid Orange 18
Name:C.I.Acid Orange 18,C.I.16120
Molecular Structure: Single azo class
Molecular Formula:C16H9N3Na2O9S2
Molecular Weight: 497.37
CAS Registry Number:5858-29-7
Manufacturing Methods : M-nitroaniline diazo, coupled with 3-Hydroxynaphthalene-2,7-disulfonic acid.
Properties and Applications: orange. Red orange powder. Soluble in water and ethanol, in 90 ℃ water solubility of 50 g/L, also can dissolve in acetone. The strong sulfuric acid dyes for product red, dilute to orange. The water solution is orange, and strong hydrochloric acid to red light orange; Add thick sodium hydroxide solution for orange still.
List of Suppliers:
Orange III( Societe Anon vine des Matieres Colorantes et Produit )