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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: | SIRIUS YELLOW GC |
| Synonyms: | SIRIUS YELLOW GC;DIRECT YELLOW 44;DIRECT FAST YELLOW GC;abcoldirectyellow4gl;siriusyellow;Yellow GC;Aizen Direct Fast Yellow GC;Pamasol Yellow 4GL-44 |
| CAS: | 8005-52-5 |
| MF: | C27H20N6Na2O8S |
| MW: | 634.53 |
| EINECS: | 232-339-7 |
| Product Categories: | UVCBs-organic-metal salts;Dyes and Pigments |
| Mol File: | 8005-52-5.mol |
| Boiling point | 245℃[at 101 325 Pa] |
| density | 0.906[at 20℃] |
| form | powder to crystal |
| Colour Index | 29000 |
| color | Orange to Brown to Dark red |
| Water Solubility | 9.49g/L at 20℃ |
| LogP | -2.87 at 23℃ |
| EPA Substance Registry System | C.I. Direct Yellow 44 (8005-52-5) |
| HS Code | 3204.14.5000 |
| Chemical Properties | Brown powder. Easily soluble in water, the aqueous solution is greenish yellow, adding concentrated hydrochloric acid turns to sauce red, accompanied by precipitation; adding concentrated sodium hydroxide turns to golden orange, accompanied by precipitation, slightly sensitive to hard water. Slightly soluble in ethanol. Red in concentrated sulfuric acid, lilac after dilution. | ||||||||||||||||||||||||||||
| Direct yellow 44 (CAS# 8005-52-5) is a water-soluble organic azo dye and water pollutant. | |||||||||||||||||||||||||||||
| Preparation | 3-Aminobenzenesulfonic acid diazo, and (2-Methoxyphenylamino)methanesulfonic acid coupling. Then the water with sulfonic acid base, compounds (A) (coupling components is O-Anisidine with Formaldehyde?and sodium sulfite and processing); 4-Nitrobenzenamine diazo, coupled with 2-Hydroxybenzoic acid, and then will the nitro reduction, compound (B). Finally the molecular A and B mixture light gasification. | ||||||||||||||||||||||||||||
| Not classified | |||||||||||||||||||||||||||||
| Properties and Applications | yellow. Brown powder. Soluble in water for green light yellow, slightly soluble in alcohol. The strong sulfuric acid dyes for red, diluted into shallow purple. The dye solution to join strong hydrochloric acid into Red sauce, accompanied by precipitation; Add thick sodium hydroxide solution to brown light orange, precipitation. Water-soluble, a little sensitive fights. In 90 ℃ the solubility of 60 g/L. For tender yellow light. In dye bath of copper ions in a little turned dark colored light and red (3 class); Iron ion in slightly turned dark colored light and red (category 4). For A class SDC classification. Used for cotton, viscose, silk, polyamide, polyester/cotton blended fabric dyeing and printing directly, can also be used for leather, paper and ink color.
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| Raw materials | 4-Nitroaniline-->Metanilic acid-->o-Anisidine-->Sodium methanesulfinate-->o-Anisidine-->Salicylic acid-->[(2-methoxyphenyl)amino]methanesulphonic acid-->Formaldehyde-->Metanilic acid-->4-Nitroaniline |
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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