Mordant Red 19
Name:C.I.Mordant Red 19,C.I.18735
Molecular Structure: Single azo class
C.I.Mordant Red 19,C.I.18735,CAS 1934-24-3,430.80,C16H12ClN4NaO5S,Chrome Red 5G,Fast Chrome Red 5G
Molecular Formula:C16H12ClN4NaO5S
Molecular Weight: 430.80
CAS Registry Number:1934-24-3
Manufacturing Methods : 3-Amino-5-chloro-2-hydroxybenzenesulfonic acid diazotization, and 3-Methyl-1-phenyl-1H-pyrazol-5(4H)-one coupling.
Properties and Applications: brilliant red. Soluble in water for orange red, right amount soluble in ethanol for brown light orange, soluble in acetone and Cellosolve, insoluble in other organic solvent. In concentrated sulfuric acid for yellow orange, dilution after yellow, there was a slight precipitate; In concentrated nitric acid for shallow olive brown solution. Dye aqueous solution to join 10% sodium hydroxide solution for yellow orange.
| Standard | Ironing Fastness | Light Fastness | Fulling | Persperation Fastness | Soaping | Water | |
| Alkali | Acid | ||||||
| ISO | 3 | 6 | 4 | 4-5 | 4-5 | 4-5 | 5 |
| AATCC | 5 | 6 | 5 | 5 | |||
List of Suppliers:
Bitachrome Red ME ( Bharat Texdyes Industries )
Chrome Red 5G ( Kaseihin Kogyo Kyokai )
Fast Chrome Red 5G ( Albion Dyestuffs Ltd )
Kemachrome Red 3B ( Karsandas Mavji )
Kemachrome Red 5G( Karsandas Mavji )
Kenachrome Red M5G( Albion Colours Ltd)