Acid Green 28
Acid Green 28
CAS: 12217-29-7
Molecular Formula: C34H32N2Na2O10S2
Acid Green 28 - Names and Identifiers
| Name | Acid Green 28 |
| Synonyms | Acid Green 28 Acid Green 28 Aminyl Green F-3GL |
| CAS | 12217-29-7 |
Acid Green 28 - Physico-chemical Properties
| Molecular Formula | C34H32N2Na2O10S2 |
Acid Green 28 - Reference Information
| use | weak acid green 5GS is used for dyeing and printing real silk, nylon, wool fabric and tussah silk, with bright colors and good fastness. It is also used for leather coloring. |
| production method | using 1,4,5,8-tetrahydroxyanthraquinone and p-butyl aniline as raw materials, 1,4,5,8-tetrahydroxyanthraquinone is partially reduced first, then condensed with p-butyl aniline, oxidized, then sulfonated and neutralized to obtain products. The finished product is salted out, filtered, dried and crushed.. It is also possible to use 1, 4-dihydroxy-5, 8-dichloroanthraquinone and p-butyl aniline as raw materials to obtain products by condensation and sulfonation. Put 47.3g of p-butyl aniline, 5g of 1,4,5,8-tetrahydroxyanthraquinone crypto, 2g of boric acid and 0.6g of p-nitrotoluene into the three-mouth bottle, stir and raise the temperature to 130 ℃ for 0.5-1h, cool to 70 ℃, add industrial ethanol, continue to stir for 0.5h, cool to about 35 ℃, precipitate condensate, stand, filter and dry to obtain 6-6.5g condensate. Add 72g of fuming sulfuric acid and 0.57g of boric acid to the three-mouth bottle, stir and heat to 70 ℃ to dissolve it, cool the ice bath to below 20 ℃, add condensate in batches, and react below 30 ℃ for 20-30min to the end of the reaction. The reactant is poured into ice, filtered, the filter cake is dissolved in ice water, neutralized with 30% sodium hydroxide to pH = 6-7, salt is added for salting out, and 11-19g of product is obtained by filtration, drying and crushing. |
Last Update：2024-04-09 19:05:04
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Product Name: Walkgrun Visit Supplier Webpage Request for quotationCAS: 12217-29-7
Tel: +86 0571-86722205
Email: sales@chinaskyrun.com
Mobile: +8618958170122
QQ: 2531159185
Wechat: chinaskyrun
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