Acid Yellow 27
Name:C.I.Acid Yellow 27,C.I.19130
Molecular Structure: Single azo class
C.I.Acid Yellow 27,C.I.19130,CAS 1934-22-1,432.32,C160H10N4Na2O6S,Vicoacid Yellow 27
Molecular Formula:C160H10N4Na2O6S
Molecular Weight: 432.32
CAS Registry Number:1934-22-1
Manufacturing Methods : aniline diazo, and 5-Oxo-1-(4-sulfophenyl)-4,5-dihydro-1H-pyrazole-3-carboxylic acid coupling.
Properties and Applications: yellow. Soluble in water, ethanol, acetone yellow. The strong sulfuric acid to tan, diluted to become red, and then a tan hairy precipitation. Its water solution and strong hydrochloric acid have brown yellow light precipitation; Add sodium hydroxide have precipitation. Used for wool, silk, vinegar fine fiber dyeing and leather and paper color, also can be used as organic pigments.
| Standard | Light Fastness | Soaping | Persperation Fastness | Oxygen bleaching | Fastness to seawater | |||
| Fading | Stain | Fading | Stain | Fading | Stain | |||
| ISO | 4 | 1 | 5 | 4 | 1 | 5 | 2-3 | |
List of Suppliers:
Vicoacid Yellow 27( Victory Colour Chem Industries )