Solvent Blue 8
Name:C.I.Solvent Blue 8,C.I.52015
Molecular Structure: thiazine class
C.I.Solvent Blue 8,C.I.52015,CAS 12262-49-6,319.85,C16H18ClN3S,Methylene Blue Base
Molecular Formula:C16H18ClN3S
Molecular Weight: 319.85
CAS Registry Number:12262-49-6
Manufacturing Methods :N1,N1-dimethylbenzene-1,4-diamine in Sodium thiosulfate (had better have with Aluminium sulfate) exist, the Dichromate treatment into sulfur generation sulfonic acid (2 – amino – 5 – dimethylaminobenzene thiosulfate), this product then through Dichromate and N,N-dimethylaniline processing, Into indamine – thio acid, then use Dichromate and Copper sulfate monohydrate (or MnO2) cyclization and oxidation, and finally to Zinc chloride double salt out (2C116H18N3SC1,ZnC1.H2O).
Properties and Applications:green ash. Soluble in water, slightly soluble in ethanol for blue. In concentrated sulfuric acid for yellow green, dilution for blue. Dye aqueous solution to join sodium hydroxide is purple, with dark purple precipitation.
| Standard | Light Fastness | Heat-resistant(℃) | water | Sodium Carbonate(5%) | Hydrochloric acid(5%) | |
| Melting point | Stable | |||||
| ISO | Poor | Poor | ||||
List of Suppliers:
Methylene Blue Base(Holliday Dispersions Ltd)