Benzohydroxamic acid
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Benzohydroxamic acid 속성
- 녹는점
- 126-130 °C(lit.)
- 끓는 점
- 251.96°C (rough estimate)
- 밀도
- 1.2528 (rough estimate)
- 굴절률
- 1.5030 (estimate)
- 저장 조건
- 2-8°C
- 용해도
- 알코올에 용해됩니다. 에테르에 약간 용해됩니다. 벤젠에 불용성.
- 물리적 상태
- 고체
- 물리적 상태
- 단단한 모양
- 산도 계수 (pKa)
- pK1: 8.89(0) (20°C)
- 색상
- 다이아몬드 모양의 정제
- 수용성
- 22g/L(6℃)
- BRN
- 1907585
- 안정성
- 수분 및 온도에 민감함
- InChIKey
- VDEUYMSGMPQMIK-UHFFFAOYSA-N
- CAS 데이터베이스
- 495-18-1(CAS DataBase Reference)
안전
- 위험 및 안전 성명
- 위험 및 사전주의 사항 (GHS)
| 위험품 표기 | Xn | ||
|---|---|---|---|
| 위험 카페고리 넘버 | 68-40-20/21/22 | ||
| 안전지침서 | 45-36/37-36-22 | ||
| WGK 독일 | 3 | ||
| RTECS 번호 | DF9650000 | ||
| TSCA | Yes | ||
| HS 번호 | 29280090 | ||
| 독성 | LD orl-rat: >500 mg/kg NCNSA6 5,26,53 |
Benzohydroxamic acid C화학적 특성, 용도, 생산
화학적 성질
Crystalline Solid용도
Benzhydroxamic acid is used as precursor in the synthesis of novel mono-anionic and di-anionic hydroxamato complexes by reacting with BiPh3 and Bi(O(t)Bu)3, which has anti-bacterial activity against helicobacter pylori. It is used in the photometric determination of trace amounts of vanadium in alloy steels by making mixed-ligand vanadium chelates with ammonium thiocyanate. It is also involved in the palladium catalyzed synthesis of benzisoxazolones.제조 방법
To a rapidly stirred suspension of 19.6 gm (0.35 mole) of powdered anhydrous potassium hydroxide in 120 ml of pyridine, maintained at 0-5°C, is a added a solution of 13.9 gm (0.2 mole) of hydroxylamine hydrochloride in 100 ml of pyridine.While maintaining the reaction temperature at 0-5°C, 15 gm (0.1 mole) of ethyl benzoate is added. Vigorous stirring is continued at room temperature for 6 hr. Then the solids are filtered off. The solids are washed with cold water to remove inorganic coproducts. The remainder, recrystallized from aqueous ethanol, represents a 94% yield of potassium benzohydroxamate.
This salt is triturated with cold 0.01 TV hydrochloric acid. From this mixture, by the usual procedures, 12.5 gm (91% overall) of benzohydroxamic acid is isolated, m.p. 131°C (from aqueous alcohol).
일반 설명
Rhombic crystals or light beige solid.공기와 물의 반응
Slightly soluble in water.반응 프로필
Benzohydroxamic acid is an amide. Amides/imides react with azo and diazo compounds to generate toxic gases. Flammable gases are formed by the reaction of organic amides/imides with strong reducing agents. Amides are very weak bases (weaker than water). Imides are less basic yet and in fact react with strong bases to form salts. That is, they can react as acids. Mixing amides with dehydrating agents such as P2O5 or SOCl2 generates the corresponding nitrile. The combustion of these compounds generates mixed oxides of nitrogen (NOx).건강위험
ACUTE/CHRONIC HAZARDS: When heated to decomposition Benzohydroxamic acid emits toxic fumes of nitrogen oxides.화재위험
Flash point data for Benzohydroxamic acid are not available; however, Benzohydroxamic acid is probably combustible.Safety Profile
Moderately toxic by ingestion.Mutation data reported. When heated to decomposition itemits toxic fumes of NOx.Benzohydroxamic acid 준비 용품 및 원자재
원자재
준비 용품
Benzohydroxamic acid 공급 업체
글로벌( 280)공급 업체
| 공급자 | 전화 | 이메일 | 국가 | 제품 수 | 이점 |
|---|---|---|---|---|---|
| Weifang Wehibest Supply Chain Co.,Ltd | +8613583620690 |
hotspotbiotech@163.com | China | 926 | 58 |
| Hebei Weibang Biotechnology Co., Ltd | +8615531157085 |
abby@weibangbio.com | China | 8806 | 58 |
| Hebei Mujin Biotechnology Co.,Ltd | +86 13288715578 +8613288715578 |
sales@hbmojin.com | China | 12830 | 58 |
| Hebei Chuanghai Biotechnology Co,.LTD | +86-13131129325 |
sales1@chuanghaibio.com | China | 5889 | 58 |
| Hebei Weibang Biotechnology Co., Ltd | +8617732866630 |
bess@weibangbio.com | China | 18148 | 58 |
| Hefei TNJ Chemical Industry Co.,Ltd. | +86-0551-65418679 +8618949832763 |
info@tnjchem.com | China | 2986 | 55 |
| Hubei Jusheng Technology Co.,Ltd. | 18871490254 |
linda@hubeijusheng.com | CHINA | 28172 | 58 |
| Shandong chuangyingchemical Co., Ltd. | 18853181302 |
sale@chuangyingchem.com | CHINA | 5906 | 58 |
| CONIER CHEM AND PHARMA LIMITED | +8618523575427 |
sales@conier.com | China | 49374 | 58 |
| career henan chemical co | +86-0371-86658258 +8613203830695 |
factory@coreychem.com | China | 29810 | 58 |
Benzohydroxamic acid 관련 검색:
프로필파라벤 아세트산 엽산 시트르산 2-하이드록시-4-메톡시벤조페논 메틸파라벤 히드록실아민
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