ChemicalBook > Produktkatalog >Chemische Rohstoffe für Pestizide >Zwischenprodukte der Insektizide >4-Ethylbenzoesaeure
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4-Ethylbenzoesaeure Eigenschaften
- Schmelzpunkt:
- 112-113°C(lit.)
- Siedepunkt:
- 271.51°C (estimate)
- Dichte
- 1.0937 (estimate)
- Brechungsindex
- 1.5188 (estimate)
- storage temp.
- Sealed in dry,Room Temperature
- Löslichkeit
- Chloroform (Sparingly), Methanol (Slightly)
- Aggregatzustand
- Powder
- pka
- pK1:4.35 (25°C)
- Farbe
- White to beige
- BRN
- 2041840
- InChIKey
- ZQVKTHRQIXSMGY-UHFFFAOYSA-N
- CAS Datenbank
- 619-64-7(CAS DataBase Reference)
- NIST chemische Informationen
- 4-Ethylbenzoic acid(619-64-7)
- EPA chemische Informationen
- Benzoic acid, 4-ethyl- (619-64-7)
Sicherheit
- Risiko- und Sicherheitserklärung
- Gefahreninformationscode (GHS)
| Kennzeichnung gefährlicher | Xn,Xi | ||
|---|---|---|---|
| R-Sätze: | 22-36/37 | ||
| S-Sätze: | 22-24/25-37/39-26 | ||
| WGK Germany | 3 | ||
| Hazard Note | Irritant | ||
| HS Code | 29163900 |
| Bildanzeige (GHS) |  | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Alarmwort | Warnung | ||||||||||||||
| Gefahrenhinweise |
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| Sicherheit |
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src="/GHS07.jpg" width="20" height="20" />4-Ethylbenzoesaeure Chemische Eigenschaften,Einsatz,Produktion Methoden
R-Sätze Betriebsanweisung:
R22:Gesundheitsschädlich beim Verschlucken.
R36/37:Reizt die Augen und die Atmungsorgane.
S-Sätze Betriebsanweisung:
S22:Staub nicht einatmen.
S24/25:Berührung mit den Augen und der Haut vermeiden.
S37/39:Bei der Arbeit geeignete Schutzhandschuhe und Schutzbrille/Gesichtsschutz tragen.
S26:Bei Berührung mit den Augen sofort gründlich mit Wasser abspülen und Arzt konsultieren.
Chemische Eigenschaften
It is a white to beige powder with a melting point of 112-113℃. It is not soluble in water, but can be dissolved in benzene and toluene.
Verwenden
4-Ethylbenzoic acid was used in the synthesis of ethyl 4-vinyl-α-cyano-β-phenylcinnamate. It was also used to functionalize the edge of “pristine” graphite in the presence of polyphosphoric acid/phosphorus pentoxide.
Application
4-Ethylbenzoic acid has various applications such as being used as an intermediate in the production of pesticide insecticides, including tebufenozide and methoxyfenozide, as well as an initiator of carbon nanotube materials. Additionally, it can also use as an intermediate in the production of liquid crystals.
synthetische
The preparation of 4-ethylbenzoic acid can be done in the following steps:
1. Add ethylbenzene and trichloroacetaldehyde in the reaction kettle.
2. Add anhydrous aluminum trichloride in batches at 0 °C.
3. Stir and react at -10 ~ 0 °C for 2 hours after the addition.
4. Add dilute hydrochloric acid to the mixed solution to decompose the remaining aluminum trichloride.
5. Wash with NaHCO3 and water.
6. Distill the organic layer to recover ethylbenzene.
7. Distill to obtain p-ethylbenzene-2,2,2-trichloroethanol.
8. Dissolve the trichloroethanol in methanol.
9. Add NaOH solution and stir.
10. Add dropwise 30% hydrogen peroxide aqueous solution to the mixture.
11. Stir until the trichloroethanol disappears.
12. Acidify with HCl to obtain crystalline 4-ethylbenzoic acid.
Allgemeine Beschreibung
4-Ethylbenzoic acid reacts with lanthanum nitrate in aqueous solution to yield the polymer catena-poly[[aqua(4-ethylbenzoic acid-κO)lanthanum(III)]-tri-μ-4-ethylbenzoato].
4-Ethylbenzoesaeure Upstream-Materialien And Downstream Produkte
Upstream-Materialien
Trichloracetaldehyd Acetylchlorid Ethylbenzol Sauerstoff Aluminiumchlorid 2,2,2-Trichlorethanol
Downstream Produkte
4-Ethylbenzoylchlorid Tebufenozide
4-Ethylbenzoesaeure Anbieter Lieferant Produzent Hersteller Vertrieb Händler.
Global( 307)Lieferanten
| Firmenname | Telefon | Land | Produktkatalog | Edge Rate | |
|---|---|---|---|---|---|
| QINGDAO HONG JIN CHEMCIAL CO.,LTD. | 532-83657313 | hjt@hong-jin.com | China | 228 | 58 |
| Hebei Mojin Biotechnology Co., Ltd | +86-13288715578 +8613288715578 | sales@hbmojin.com | China | 12463 | 58 |
| Hebei Guanlang Biotechnology Co,.LTD | +86-19930503253; +8619930503252 | daisy@crovellbio.com | China | 5965 | 58 |
| Shanghai Daken Advanced Materials Co.,Ltd | +86-371-66670886 | info@dakenam.com | China | 16221 | 58 |
| career henan chemical co | +86-0371-86658258 15093356674; | sales@coreychem.com | China | 29902 | 58 |
| SHANDONG ZHI SHANG CHEMICAL CO.LTD | +86 18953170293 | sales@sdzschem.com | China | 2931 | 58 |
| Hubei Jusheng Technology Co.,Ltd. | 18871490254 | linda@hubeijusheng.com | CHINA | 28180 | 58 |
| Jinan Finer Chemical Co., Ltd | +86-531-88989536 +86-15508631887 | sales@finerchem.com | China | 2967 | 58 |
| Accela ChemBio Inc. | (+1)-858-699-3322 | info@accelachem.com | United States | 19965 | 58 |
| Hebei Guanlang Biotechnology Co., Ltd. | +86-19930503282 | alice@crovellbio.com | China | 8828 | 58 |
619-64-7(4-Ethylbenzoesaeure)Verwandte Suche:
Benzoesure p-Toluylsäure 4-Hydroxybenzoesure m-(1-Cyanethyl)benzoesure Terephthalsure Methyl-4-tert-butylbenzoat Estradiolbenzoat 3,5-Dinitrobenzoesure Gallic acid trimethyl ether 4-Brombenzoesure Butyl-4-hydroxybenzoat Methyl-4-hydroxybenzoat 4-Nitrobenzoesäure 4-Aminobenzoesure 4-Ethylbenzaldehyd Anthranilic acid p-cyanphenyl-p-butylbenzoat 4-Acetylbenzoesaeure
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- 619-64-7
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- C2H5C6H4CO2H
- Building Blocks
- Carboxylic Acids
- Carbonyl Compounds
- C9
- Benzoic Acids (Building Blocks for Liquid Crystals)
- Building Blocks for Liquid Crystals
- ARYL ACID
- Organic Building Blocks
- C9
- Carbonyl Compounds
- CARBOXYLICACID
- FINE Chemical & INTERMEDIATES
- Liquid Crystal intermediates
- Aromatic Carboxylic Acids, Amides, Anilides, Anhydrides & Salts
- Carboxylic Acids
- Phenyls & Phenyl-Het
- Benzoic Acids (Building Blocks for Liquid Crystals)
- Building Blocks for Liquid Crystals
- Functional Materials
- Carboxylic Acids
- Phenyls & Phenyl-Het
- Liqiud crystal intermediates
