Basic Blue 25
Name:C.I.Basic Blue 25,C.I.52025
Molecular Structure: thiazine class
Molecular Formula:C18H22ClN3S
Molecular Weight: 347.91
CAS Registry Number:2391-29-9
Manufacturing Methods : by heavy chromate salt in sodium content and save processing N1,N1-dimethylbenzene-1,4-diamine, transforming it into the content and sulfonic acid, this product then through heavy chromate salt and N,N-diethylbenzenamine hydrochloride processing, into a unique of sulfur acid amine generation, then use heavy chromate salt and copper sulfate closed loop and oxidation, Finally, the zinc chloride salt precipitation
Properties and Applications: dark green light blue. Soluble in water, slightly soluble in ethanol to blue. The strong sulfuric acid for yellow green, diluted to blue. Add sodium hydroxide solution dye for purple, has the purple precipitation.
Standard( Cotton ) | Light Fastness | Persperation Fastness | Ironing Fastness | Soaping | |||
Fading | Stain | Fading | Stain | Fading | Stain | ||
C | 2-3 | 1-2 | 3 | 2 | 4-5 |
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