Name:C.I.Acid Red 88,C.I.15620
Molecular Structure: Single azo class
C.I.Acid Red 88,C.I.15620,CAS 1658-56-6,400.38,C20H13N2NaO4S,Acid Red A,Acid Fast Red A,Acid Red G
Molecular Formula:C20H13N2NaO4S
Molecular Weight: 400.38
CAS Registry Number:1658-56-6
Manufacturing Methods : 4-Aminonaphthalene-1-sulfonic acid diazo, and Naphthalen-2-ol coupling.
Properties and Applications: red. Deep red powder. Slightly soluble in acetone, soluble in ethanol, water and soluble fiber element (red). Meet strong sulfuric acid is blue purple, diluted was yellow brown precipitation; Meet nitric acid slightly soluble (red light yellow); Sodium hydroxide solution in a rare red brown, dark and precipitation. In dyeing copper and iron ion colour and lustre is dark. Discharge the gender is good. Also suitable for leather shading.
Standard | Light Fastness | Soaping | Persperation Fastness | Oxygen bleaching | Fastness to seawater | |||
Fading | Stain | Fading | Stain | Fading | Stain | |||
ISO | 2-3 | 1 | 1 | 3 | 1 | 1 | 3 | 1 |
AATCC | 4 | 1 | 1 | 3 | 1 | 1 | 2 | 2 |
