Azoic Diazo Component 33
2-AMINO-4,4'-DICHLORODIPHENYL ETHER
CAS: 121-27-7
Molecular Formula: C12H9Cl2NO
Azoic Diazo Component 33 - Names and Identifiers
| Name | 2-AMINO-4,4'-DICHLORODIPHENYL ETHER |
| Synonyms | AURORA KA-6780 Diazo Fast Red FR Azoic Diazo Component 33 C.I.Azoic Diazo Component 33 2-AMINO-4,4'-DICHLORODIPHENYL ETHER 5-CHLORO-2-(4-CHLOROPHENOXY)ANILINE 5-chloro-2-(4-chlorophenoxy)-benzenamin Benzenamine,5-chloro-2-(4-chlorophenoxy)- |
| CAS | 121-27-7 |
| EINECS | 204-460-5 |
Azoic Diazo Component 33 - Physico-chemical Properties
| Molecular Formula | C12H9Cl2NO |
| Molar Mass | 254.11 |
| Density | 1.364±0.06 g/cm3(Predicted) |
| Melting Point | 61.0 to 65.0 °C |
| Boling Point | 234°C/27mmHg(lit.) |
| Appearance | Brown solid |
| pKa | 2.99±0.10(Predicted) |
| Storage Condition | Keep in dark place,Inert atmosphere,Room temperature |
| MDL | MFCD00027391 |
| Use | Use red base FR can be coupled with a variety of phenol to give red, so it is a commonly used red priming agent for dyeing cotton, viscose fiber, silk, nylon, acetate fiber and cotton printing. The coupling ability is medium, and the coupling speed is medium. Commonly used coupling phenols include phenol AS, AS-BO, AS-SW, AS-RL, AS-ITR, AS-SG, AS-OL, and the like. |
Azoic Diazo Component 33 - Risk and Safety
| Hazard Symbols | Xi - Irritant |
| Hazard Class | IRRITANT |
Azoic Diazo Component 33 - Upstream Downstream Industry
| Raw Materials | Nitrogen Formic acid 4-Chloro-1-(4-chlorophenoxy)-2-nitrobenzene 4-Chlorophenol 2,5-Dichloronitrobenzene 1,4-Dichlorobenzene Acetic acid |
Azoic Diazo Component 33 - Security information
| Hazard Note | Irritant |
Last Update：2024-04-10 22:29:15
Azoic Diazo Component 33 - Nature
| EPA chemical information | 4,4'-Dichloro-2-aminodiphenyl ether (121-27-7) |
Last Update：2024-04-10 22:29:15
Azoic Diazo Component 33 - Production method
Using 2, 5-dichloronitrobenzene and sodium p-chlorophenol as raw materials, the two are first condensed, then the nitro group is reduced, and the product is obtained by forming a salt with hydrochloric acid. The finished product is filtered, dried and crushed..
900kg of chlorobenzene and 421kg of sodium p-chlorophenol were added to the condensation pot, stirred, heated to 95 ℃, 550kg of molten 2, 5-dichloronitrobenzene was added, and the addition was completed within 8 hours, maintaining 100 ℃ until the condensation reaction was complete. After neutralization, steaming chlorobenzene, filtration, and water washing to obtain condensates.
Add 200L of water, 100kg of iron filings and 30kg of formic acid into the reduction pot, heat to boiling, add 600kg of molten condensate within 3 hours, add 250kg of iron filings at the same time, and heat until the reaction is complete. Cooling, standing, removing the water layer, the oil layer is extracted with benzene many times, the benzene layer is combined, the reduced pressure distillation, the chlorinated phenol is recovered, and then the reduced product (245-260 ℃/3.33kPa) is distilled, cooled, and the product crystallized (about 61 ℃).
Add 1000L of water and 1000kg of hydrochloric acid (30%) to the salt-forming pot, heat to 40 ℃, add the reduction product 500kg 70 ℃ within 2-3h, and protect the pot with nitrogen. At the end of the reaction, it is cooled to 15-20 ℃, the product is precipitated, filtered, washed, and vacuum dried to obtain the finished product. The total yield is about 86%.
Last Update：2024-04-10 22:29:15
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CAS: 121-27-7
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Product Name: 5-Chloro-2-(4-Chlorophenoxy)Aniline Visit Supplier Webpage Request for quotation
CAS: 121-27-7
Tel: 18301782025
Email: 3008007409@qq.com
Mobile: 18021002903
QQ: 3008007409
Wechat: 18301782025
CAS: 121-27-7
Tel: 18301782025
Email: 3008007409@qq.com
Mobile: 18021002903
QQ: 3008007409
Wechat: 18301782025
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Raw Materials for Azoic Diazo Component 33