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| 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: | ACID BLUE 25 |
| Synonyms: | ACID ANTHRACENE BLUE A;abcol brilliant blue rb;2-Anthracenesulfonic acid, 1-amino-9,10-dihydro-9,10-dioxo-4-(phenylamino)-, monosodium salt;alizarine saphirol A;Acid Blue AS;Acid Blue GRL;Acid Light Blue A;Acid Naphthol Blue |
| CAS: | 6408-78-2 |
| MF: | C20H13N2NaO5S |
| MW: | 416.38 |
| EINECS: | 229-068-1 |
| Product Categories: | Dyes and Pigments;Organics;A;Stains and Dyes;Stains&Dyes, A to |
| Mol File: | 6408-78-2.mol |
| Melting point | >300℃ |
| Boiling point | 846.88℃[at 101 325 Pa] |
| density | 1.491[at 20℃] |
| vapor pressure | 0Pa at 25℃ |
| storage temp. | -20°C, Inert atmosphere |
| solubility | DMSO (Slightly), Water (Slightly) |
| form | Powder |
| Colour Index | 62055 |
| color | Blue |
| Water Solubility | 2.79g/L at 20℃ |
| λmax | 600 nm |
| ε(extinction coefficient) | ≥10000 at 254-260nm in ethanol at 0.03g/L |
| LogP | -0.497 at 20℃ |
| CAS DataBase Reference | 6408-78-2(CAS DataBase Reference) |
| EPA Substance Registry System | C.I. Acid Blue 25 (6408-78-2) |
| Hazard Codes | Xi |
| Risk Statements | 36/37/38 |
| Safety Statements | 26-36 |
| WGK Germany | 3 |
| Chemical Properties | Blue powder. Soluble in acetone and alcohol, soluble in o-chlorophenol, slightly soluble in acetone, alcohol, pyridine, slightly soluble in benzene and tetrahydronaphthalene, insoluble in nitrobenzene and xylene. Dark blue in concentrated sulfuric acid, produces blue precipitate after dilution. | |||||||||||||||||||||||||||||||||
| Acid Blue 25, is used for dyeing wool, silk and mixed fabric and printing them in a direct method.Dyes and metabolites. | ||||||||||||||||||||||||||||||||||
| Preparation | (a) 1-Amino-2,4-dibromoanthracene-9,10-dione?with aniline condensation, its product 1-amino-4- anilino-2-bromo-anthraquinone?in phenol in pressure with aqueous sodium sulfite, were hot. (b) the 1-Amino-4-bromo-9,10-dioxo-9,10-dihydroanthracene-2-sulfonic acid (sodium) in water medium copper salt as the catalyst used with aniline condensation. | |||||||||||||||||||||||||||||||||
| Non flammable | ||||||||||||||||||||||||||||||||||
| Properties and Applications | blue. Blue powder. The little blue soluble in water, but soluble in acetone, ethanol, slightly soluble in benzene, four hydrogen naphthalene, insoluble in nitrobenzene and xylene. Meet strong sulfuric acid as dark, after diluted blue precipitation. Mainly used for dyeing nylon, polyamide for supporting the dye. Can also be used for wool, silk and blended fabric dyeing and printing directly. Can also be used in leather, electrical-controlled aluminum soap and color.
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| The ITSL for C.I.acid blue has been changed from 0.04 μg/m3 to 0.1 μg/m3 based on annual averaging time. | ||||||||||||||||||||||||||||||||||
| Raw materials | Water-->1,4-Dihydroxyanthraquinone-->Bromaminic acid-->p-Toluidine-->1-Amino-2,4-dibromoanthraquinone-->Phenol-->Aniline-->Bromaminic acid |
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.
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