Acid Red 23
Name:C.I.Acid Red 23,C.I.16130
Molecular Structure: Single azo class
Molecular Formula:C18H13N3Na2O8S2
Molecular Weight: 509.42
CAS Registry Number:5864-81-3
Manufacturing Methods : N-(3-aminophenyl)acetamide diazo, coupled with 3-Hydroxynaphthalene-2,7-disulfonic acid.
Properties and Applications: red. Soluble in water for red, hardly soluble in alcohol. The strong sulfuric acid for red, diluted still in red. In aqueous solution to join strong hydrochloric acid red; Add thick sodium hydroxide solution for red light orange brown.
Standard | Light Fastness | Soaping | Persperation Fastness | Oxygen bleaching | Fastness to seawater | |||
Fading | Stain | Fading | Stain | Fading | Stain | |||
ISO | 3 | 2-3 | 2 | 4 | 2 |
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