Acid Green 33
Name:C.I.Acid Green 33,C.I.33545
Molecular Structure: trisazo class
C.I.Acid Green 33,C.I.33545,CAS 6487-06-5,720.6,C28H18N8Na2O9S2,Lecotan Green SM,Wool Dark Green AZ
Molecular Formula:C28H18N8Na2O9S2
Molecular Weight: 720.6
CAS Registry Number:6487-06-5
Manufacturing Methods : 4-Nitrobenzenamine diazo, in acid conditions and 4-Amino-5-hydroxynaphthalene-2,7-disulfonic acid coupling, its product in alkaline conditions again with the diazo 4-(Phenyldiazenyl)benzenamine coupling.
Properties and Applications: dark blue light green. Soluble in water, slightly soluble in ethanol and acetone, hardly soluble in benzene. The strong sulfuric acid for blue-ray green, diluted for blue-ray still green. In an aqueous solution of concentrated sodium hydroxide solution was added to gray light blue.
| Standard | Light Fastness | Soaping | Persperation Fastness | Oxygen bleaching | Fastness to seawater | |||
| Fading | Stain | Fading | Stain | Fading | Stain | |||
| ISO | 3-4 | 4 | 4-5 | 4-5 | ||||
List of Suppliers:
Lecotan Green SM ( Jinwoong Industrial Co Ltd )
Wool Dark Green AZ ( Kalle & Co. AG )