【 WhatsApp】
+86-21-6420 0566
8618501763615
| OEM | OEM Services Provided |
| Feature | Good stability,Easy to Use |
| Classification | Dyes and Pigments |
| Advantage | Professional, Fast Delivery, Customizable | Samples | Apply for free，Contact us now. |
| Product Name: | Vat Blue 43 |
| Synonyms: | Vat Blue 43;Phenol, 4-(9H-carbazol-3-ylamino)-, reaction products with sodium sulfide (Na2(Sx));Vat blue 43 (C.I. 53630);VAT HIDROTIN BLUE RNX,100%;Blue RNX;Carbanol Blue LB;Hydron Blue 2RF;Hydron Blue 3R |
| CAS: | 1327-79-3 |
| MF: | C18H12N2O |
| MW: | 0 |
| EINECS: | 215-499-2 |
| Product Categories: | UVCBs-organic-metal salts |
| Mol File: | Mol File |
| EPA Substance Registry System | C.I. Vat Blue 43 (1327-79-3) |
| Chemical Properties | Reddish light dark blue powder. Insoluble in water and alcohol, soluble in sodium sulfide solution, yellowish green. Yellowish orange in alkaline reducing solution; greenish yellow in acidic reducing solution; dark blue in concentrated sulfuric acid, produces blue precipitate after dilution. | ||||||||||||||||||||||||||
| 3-(4-Hydroxyanilino)carbazole in 107 ℃ in Butanol sodium polysulfide solution reflux heating 24 hours, and then with sodium nitrite short time heating, steam out of Butanol, through the air and add salt to make dye completely precipitated out. This indophenol is by carbazole and nitroso phenol in concentrated sulfuric acid in – 20 to 23 ℃ condensation, then reduction and have to (BIOS983, 71 -74). To cure solution is to add 3 – methyl – 4 ‘- hydroxy – 4 -aminodiphenylamine, 4, 4’ – dihydroxydiphenyl aniline and phenol , improved the performance of the dye (BIOS983, 75- 81). Note: use with C.I. leuco sulfur dye similar method, some the structure of the dyes can be converted into the leuco compound. | |||||||||||||||||||||||||||
| Properties and Applications | red light blue to red light navy blue. In concentrated sulfuric acid for the faint blue, blue precipitation after dilution.
| ||||||||||||||||||||||||||
| Raw materials | Carbazole-->SODIUM TETRASULFIDE-->4-Nitrosophenol-->4-(3-CARBAZOLYLAMINO)PHENOL-->Phenol |
Declaration: The products displayed on this website are intended exclusively for industrial applications or scientific research. They are not intended for medical, pharmaceutical, or food use. In accordance with applicable laws and regulations, purchasing organizations must hold valid qualifications and approvals.
Ready to Start?
For help with solutions customized to your business needs, contact Export Director now.
With 30+ years of experience and We firmly believe that product quality is the basis of cooperation.
Chat Now
Phone
8618501763615
Working hours
Monday to Friday
TEl
+86-21-6420 0566
