4-에틸벤조산
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4-에틸벤조산 속성
- 녹는점
- 112-113 °C(lit.)
- 끓는 점
- 271.51°C (estimate)
- 밀도
- 1.0937 (estimate)
- 굴절률
- 1.5188 (estimate)
- 저장 조건
- Sealed in dry,Room Temperature
- 용해도
- 클로로포름(소량으로 용해), 메탄올(약간 용해됨)
- 물리적 상태
- 가루
- 산도 계수 (pKa)
- pK1:4.35 (25°C)
- 색상
- 흰색에서 베이지색
- BRN
- 2041840
- InChIKey
- ZQVKTHRQIXSMGY-UHFFFAOYSA-N
- CAS 데이터베이스
- 619-64-7(CAS DataBase Reference)
안전
- 위험 및 안전 성명
- 위험 및 사전주의 사항 (GHS)
| 위험품 표기 | Xn,Xi | ||
|---|---|---|---|
| 위험 카페고리 넘버 | 22-36/37 | ||
| 안전지침서 | 22-24/25-37/39-26 | ||
| WGK 독일 | 3 | ||
| 위험 참고 사항 | Irritant | ||
| HS 번호 | 29163900 | ||
| 기존화학 물질 | KE-13539 |
4-에틸벤조산 C화학적 특성, 용도, 생산
화학적 성질
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.용도
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.주요 응용
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.제조 방법
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.
일반 설명
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-에틸벤조산 준비 용품 및 원자재
원자재
준비 용품
4-에틸벤조산 공급 업체
글로벌( 302)공급 업체
| 공급자 | 전화 | 이메일 | 국가 | 제품 수 | 이점 |
|---|---|---|---|---|---|
| QINGDAO HONG JIN CHEMCIAL CO.,LTD. | 532-83657313 |
hjt@hong-jin.com | China | 228 | 58 |
| Hebei Mojin Biotechnology Co., Ltd | +8613288715578 |
sales@hbmojin.com | China | 12452 | 58 |
| Hebei Guanlang Biotechnology Co,.LTD | +8619930503252 |
daisy@crovellbio.com | China | 5964 | 58 |
| Shanghai Daken Advanced Materials Co.,Ltd | +86-371-66670886 |
info@dakenam.com | China | 15371 | 58 |
| career henan chemical co | +86-0371-86658258 |
sales@coreychem.com | China | 29914 | 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 | 2966 | 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 | 8822 | 58 |