ACID ANTHRACENE BLUE A
acid blue 25
CAS: 6408-78-2
Molecular Formula: C20H13N2NaO5S
ACID ANTHRACENE BLUE A - Names and Identifiers
| Name | acid blue 25 |
| Synonyms | Acid Blue AS acid blue 25 Acid Blue GRL Erio Blue GRL Weak acid blue AS Acid Light Blue A C.I. Acid Blue 25 Acid Naphthol Blue Acid Blue 25 (C.I.) alizarine saphirol A Acilan Direct Blue A ACID ANTHRACENE BLUE A Alizqrine Supra Blue A C.1.Acid Blue 25(62055) abcol brilliant blue rb acid blue 25 (c.i. 62055) WOOD DYE(Fur KB Acid Blue) Acid anthraquinone green GL sodium 1-amino-9,10-dioxo-4-phenylaminoanthracene-2-sulphonate 1-amino-9,10-dihydro-9,10-dioxo-4-(phenylamino)-2-anthracenesulfonic aci mo sodium 1-amino-9,10-dioxo-4-(phenylamino)-9,10-dihydroanthracene-2-sulfonate 2-Anthracenesulfonic acid, 1-amino-9,10-dihydro-9,10-dioxo-4-(phenylamino)-, monosodium salt |
| CAS | 6408-78-2 |
| EINECS | 229-068-1 |
| InChI | InChI=1/C20H14N2O5S.Na/c21-18-15(28(25,26)27)10-14(22-11-6-2-1-3-7-11)16-17(18)20(24)13-9-5-4-8-12(13)19(16)23;/h1-10,22H,21H2,(H,25,26,27);/q;+1/p-1 |
ACID ANTHRACENE BLUE A - Physico-chemical Properties
| Molecular Formula | C20H13N2NaO5S |
| Molar Mass | 416.38 |
| Density | 1.491[at 20℃] |
| Melting Point | >300℃ |
| Boling Point | 846.88℃[at 101 325 Pa] |
| Water Solubility | 2.79g/L at 20℃ |
| Solubility | DMSO (Slightly), Water (Slightly) |
| Vapor Presure | 0Pa at 25℃ |
| Appearance | Powder |
| Color | Blue |
| Storage Condition | -20°C, Inert atmosphere |
| Physical and Chemical Properties | Blue powder. Soluble in acetone and alcohols, slightly soluble in benzene and tetralin, soluble in nitrobenzene and xylene. It is dark blue in concentrated sulfuric acid and blue precipitate after dilution. |
| Use | It is mainly used for dyeing wool, silk, nylon and their blends. Can also be used for hair energy under the dyeing and electrochemical aluminum, soap and other coloring. |
ACID ANTHRACENE BLUE A - Risk and Safety
| Hazard Symbols | Xi - Irritant |
| Risk Codes | 36/37/38 - Irritating to eyes, respiratory system and skin. |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36 - Wear suitable protective clothing. |
| WGK Germany | 3 |
ACID ANTHRACENE BLUE A - Reference Information
| Color index | 62055 |
| LogP | -0.497 at 20℃ |
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| Use | mainly used for dyeing silk, wool, nylon and its blend fabrics acid anthraquinone blue is mainly used for wool, silk, nylon and its blended fabric dyeing, can also be used for leather, electrochemical aluminum, soap and other coloring, can also be used for wool energy under the dyeing and electrochemical aluminum, soap and other coloring. |
| production method | the product is obtained by condensation of bromamine acid and aniline in aqueous medium with strontium salt as catalyst. After salting out, filtration, drying, grinding to get the finished product. 211.5 parts of bromamine acid and 182 parts of aniline are condensed in the presence of Na2CO3 and CuSO4, then heated in hydrochloric acid at 90 ℃, filtered, the filter cake is washed with brine, and neutralized with sodium hydroxide solution, filtration and drying gave about 230g of product. (a) condensation of 1-amino -2, 4-dibromo-anthracene-9, 10-dione with aniline, the product, 1-amino-4-aniline-2-bromoanthraquinone, is elevated in phenol under pressure with sodium sulfite. (B) 1-amino-4-bromo-9, 10-dioxo-9, 10-dihydroanthracene-2-sulfonic acid (sodium) copper salts in aqueous media are used as catalysts for the condensation of aniline. bromine (100%), 585 sodium carbonate (98%), 650 aniline (99%), 530 hydrochloric acid (31%) 813 |
Last Update：2024-04-09 20:49:11
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