Acid Green 8
Name:C.I.Acid Green 8,C.I.42050
Molecular Structure: triarylmethane class
Molecular Formula:C33H34N5NaO10S2
Molecular Weight: 747.77
CAS Registry Number:4616-29-1
Manufacturing Methods : 3-Nitrobenzaldehyde (1 Moore) and N,N-diethylbenzenamine (2 Moore) condensation, reduction, again will product and 1-Chloro-2,4-dinitrobenzene condensation, and two were fuming sulfuric acid, then use heavy chromate salt-oxalic acid oxidation.
Note: 3BX brand for a by-product, ingredient is probably three sulfonic acid.
Properties and Applications: bright green. Soluble in water and ethanol for blue light green. The strong sulfuric acid is light in lemon yellow, diluted for deep lemon yellow. In water solution to join sodium hydroxide for cloudy turquoise, and accompanied by precipitation
Standard | Light Fastness | Soaping | Persperation Fastness | Oxygen bleaching | Fastness to seawater | |||
Fading | Stain | Fading | Stain | Fading | Stain | |||
ISO | 3 | 3 | 2-3 | 3 | 2 | 3 |
List of Suppliers:
Acilan Fast Green BBF ( Bayer Group )
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