sec-뷰틸리튬
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sec-뷰틸리튬 속성
- 밀도
- 0.769 g/mL at 25 °C
- 인화점
- 1 °F
- 저장 조건
- 2-8°C
- 물리적 상태
- 액체
- 색상
- 무색의
- 감도
- Air & Moisture Sensitive
- BRN
- 3587206
- 노출 한도
- ACGIH: TWA 100 ppm
OSHA: TWA 300 ppm(1050 mg/m3)
NIOSH: IDLH 1300 ppm; TWA 300 ppm(1050 mg/m3)
- InChIKey
- VATDYQWILMGLEW-UHFFFAOYSA-N
- CAS 데이터베이스
- 598-30-1(CAS DataBase Reference)
안전
- 위험 및 안전 성명
- 위험 및 사전주의 사항 (GHS)
| 위험품 표기 | F,C,N | ||
|---|---|---|---|
| 위험 카페고리 넘버 | 11-15-17-34-50/53-65-67-66-51/53-14/15 | ||
| 안전지침서 | 26-36/37/39-43-45-60-61-62-33-16 | ||
| 유엔번호(UN No.) | UN 3394 4.2/PG 1 | ||
| WGK 독일 | 2 | ||
| F 고인화성물질 | 1-10 | ||
| TSCA | Yes | ||
| 위험 등급 | 4.3 | ||
| 포장분류 | I | ||
| HS 번호 | 29319090 | ||
| 기존화학 물질 | KE-04321 |
sec-뷰틸리튬 C화학적 특성, 용도, 생산
개요
sec-Butyllithium. [598-30-1], sec-C4H9Li, Mr 64.06, is a spontaneously flammable, colorless, viscous liquid that forms tetramers in hydrocarbon solvents. It is commercially available only as 12 % solution in cyclohexane and methylcyclohexane. sec-Butyllithium is more nucleophilic and decomposes more readily than n-butyllithium. A 12 % solutionin cyclohexane at 20 ℃ undergoesthermal decomposition to the extent of 1.4 % of the active material per month. The thermal decomposition yields butene gas and LiH; the latter is insoluble and responsible for the increasing turbidity of secbutyllithium solutions on prolonged storage. Therefore solutions of sec-butyllithium must be kept cool during storage and transportation.화학적 성질
sec-Butyllithium is a colorless crystalline solid or clear yellowish solution. It is more reactive than n-butyllithium. Its solutions are unstable and decompose about 10 to 15 times as fast as n-butyllithium under the same conditions.
용도
sec-Butyllithium is used almost exclusively as a polymerization catalyst. It is more expensive than n-butyllithium and is used mainly because of its greater reactivity and faster polymerization initiation.제조 방법
sec-Butyllithium is produced by the reaction of sec-butyl chloride with lithium metal dispersion in hydrocarbon solvents. The lithium metal should contain catalytic amounts of up to 2 % sodium metal to attain a rapid reaction with the chloride and to minimize coupling. Massive substitution of sodium metal for lithium metal as is done in the preparation of n-butyllithium results in lower yields. Isopentane, hexane and cyclohexahe are typical solvents. Industrial and laboratory preparations are similar.sec-뷰틸리튬 준비 용품 및 원자재
원자재
준비 용품
sec-뷰틸리튬 공급 업체
글로벌( 213)공급 업체
| 공급자 | 전화 | 이메일 | 국가 | 제품 수 | 이점 |
|---|---|---|---|---|---|
| Hebei Mojin Biotechnology Co., Ltd | +8613288715578 |
sales@hbmojin.com | China | 12470 | 58 |
| Hebei Yanxi Chemical Co., Ltd. | +8617531190177 |
peter@yan-xi.com | China | 6001 | 58 |
| Shanghai Daken Advanced Materials Co.,Ltd | +86-371-66670886 |
info@dakenam.com | China | 15965 | 58 |
| Beijing Cooperate Pharmaceutical Co.,Ltd | 010-60279497 |
sales01@cooperate-pharm.com | CHINA | 1811 | 55 |
| Henan Tianfu Chemical Co.,Ltd. | +86-0371-55170693 +86-19937530512 |
info@tianfuchem.com | China | 21689 | 55 |
| career henan chemical co | +86-0371-86658258 |
sales@coreychem.com | China | 29914 | 58 |
| Shenzhen Nexconn Pharmatechs Ltd | +86-755-89396905 +86-15013857715 |
admin@nexconn.com | China | 10248 | 58 |
| Hubei Jusheng Technology Co.,Ltd. | 18871490254 |
linda@hubeijusheng.com | CHINA | 28180 | 58 |
| Chongqing Chemdad Co., Ltd | +86-023-61398051 +8613650506873 |
sales@chemdad.com | China | 39916 | 58 |
| CONIER CHEM AND PHARMA LIMITED | +8618523575427 |
sales@conier.com | China | 49391 | 58 |