Acid Blue 74
Name:C.I.Acid Blue 74,C.I.73015
Molecular Structure: Indigo class
C.I.Acid Blue 74,C.I.73015,CAS 860-22-0,466.35,C16H8N2Na2O8S2,Basovit Blue 665 E,Indigo Carmine
Molecular Formula:C16H8N2Na2O8S2
Molecular Weight: 466.35
CAS Registry Number:860-22-0
Manufacturing Methods : 3H-indol-3-one,2-(1,3-dihydro-3-oxo-2H-indol-2-ylidene)-1,2-dihydro with strong sulfuric acid or trace fuming sulfuric acid products.
Properties and Applications: green light blue. Soluble in water for blue, slightly soluble in alcohol. The strong sulfuric acid is a deep blue light in purple, diluted into blue. In aqueous solution for green to yellow sodium hydroxide to join.
| Standard | Light Fastness | Soaping | Persperation Fastness | Oxygen bleaching | Fastness to seawater | |||
| Fading | Stain | Fading | Stain | Fading | Stain | |||
| ISO | 1-2 | 2 | 4 | 2 | 1 | 2 | 2 | 1 |
| AATCC | 1 | 3 | 5 | 1 | 1 | 1 | 2 | 2 |
List of Suppliers:
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