삼차뷰틸 머캡탄
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삼차뷰틸 머캡탄 속성
- 녹는점
- -1.1 °C
- 끓는 점
- 62-65 °C(lit.)
- 밀도
- 0.8 g/mL at 25 °C(lit.)
- 증기 밀도
- 3.1 (vs air)
- 증기압
- 303.5 mm Hg ( 37.7 °C)
- 굴절률
- n
20/D 1.423(lit.)
- 인화점
- −12 °F
- 저장 조건
- Flammables area
- 용해도
- 1.47g/l 약간 용해됨
- 물리적 상태
- 액체
- 산도 계수 (pKa)
- pK1:11.22 (25°C,μ=0.1)
- 색상
- 무색의
- 냄새
- 유황의
- Odor Threshold
- 0.000029ppm
- 수용성
- 물에 약간 용해됨
- Merck
- 14,1579
- BRN
- 505947
- Dielectric constant
- 5.4800000000000004
- 안정성
- 안정적인. 가연성 - 인화점이 낮습니다. 강한 산화제와 호환되지 않습니다.
- LogP
- 2.206 (est)
- CAS 데이터베이스
- 75-66-1(CAS DataBase Reference)
안전
- 위험 및 안전 성명
- 위험 및 사전주의 사항 (GHS)
위험품 표기 | F,Xi,Xn,N | ||
---|---|---|---|
위험 카페고리 넘버 | 11-41-65-43-36-51/53 | ||
안전지침서 | 3-16-26-39-38-36/37-61 | ||
유엔번호(UN No.) | UN 2347 3/PG 2 | ||
WGK 독일 | 3 | ||
RTECS 번호 | TZ7660000 | ||
F 고인화성물질 | 13 | ||
위험 등급 | 3.1 | ||
포장분류 | II | ||
HS 번호 | 29309090 | ||
유해 물질 데이터 | 75-66-1(Hazardous Substances Data) | ||
기존화학 물질 | KE-24873 |
삼차뷰틸 머캡탄 C화학적 특성, 용도, 생산
개요
tert-Butylthiol, also known as 2-methyl propane-2-thiol, 2- methyl-2-propane thiol, tert-butyl mercaptan (TBM), and t-BuSH, is an organo sulfur compound with the formula (CH3)3CSH. This thiol may have been used as a flavoring agent, as an odorant for natural gas (which is odorless), and also in a wide range of organic reactions.화학적 성질
liquid with an exceedingly unpleasant smell용도
2-Methyl-2-propanethiol was used in reaction of 2-methyl-2-propanethiol on Mo(110) using temperature programmed reaction, high resolution electron enegy loss and X-ray photoelectron spectroscopies. It was used in the synthesis of chain-transfer agents for reversible addition-fragmentation chain-transfer copolymerization of vinylidene chloride and methyl acrylate.제조 방법
tert-Butyl thiol likely does not occur naturally, but at least one publication has listed it as a very minor component of cooked potatoes. The compound was first prepared in 1890 by Leonard Dobbin by the reaction of zinc sulfide and t-butyl chloride.The compound was later prepared in 1932 by the reaction of the Grignard reagent, t-BuMgCl, with sulfur to give the corresponding thiolate, followed by hydrolysis. This preparation is shown below:
t-BuMgCl + S → t-BuSMgCl
t-BuSMgCl + H2O → t-BuSH + Mg(OH)Cl
It is currently prepared industrially by the reaction of isobutylene with hydrogen sulfide over a clay (silica alumina) catalyst.
화학 반응
tert-Butylthiol can react with metal alkoxides and acyl chlorides to form thiol esters, as shown in the equation :In the reaction above, thallium (I) ethoxide converts to thallium (I) t-butyl thiolate. In the presence of diethyl ether, thallium (I) tbutylthiolate reacts with acyl chlorides to give the corresponding tertbutyl thioesters. Like other thio esters, it reverts back to tert-butylthiol by hydrolysis.
Lithium 2-methyl propane-2-thiolate can be prepared by treatment of tert-butyl thiol with lithium hydride in an aprotic solvent such as hexa methyl phosphorous triamide (HMPT). The resulting thiolate salt is a useful demethylating reagent. For example, treatment with 7- methyl guanosine gives guanosine. Other N-methylated nucleosides in tRNA are not demethylated by this reagent .
일반 설명
2-Methyl-2-propanethiol undergoes ring opening nucleophilic reaction with 3-isothiazolones and reaction kinetics studies suggested reaction was second order in thiol and third order overall.위험도
Flammable, dangerous fire risk. Very toxic.Safety Profile
Moderately toxic by intraperitoneal route. Mildly toxic by ingestion. An eye irritant. A very dangerous fire hazard when exposed to heat or flame. Can react vigorously with oxidizing materials. To fight fire, use alcohol foam, dry chemical, mist, fog. When heated to decomposition or on contact with acid or acid fumes it emits highly toxic fumes of SOx.Safety
Even in well ventilated areas, extreme caution must be made when handling tert-butylthiol as it is a highly odorous chemical with an odor threshold of < 0.33 ppb. Extreme caution is not due to toxicity, but due to the significant odor and concerns that this odor would cause to the many individuals that might be exposed. The PEL for thiols of most types is 500 ppb, primarily due to reaction of nausea at levels of 2–3 ppm. The LC50 of tert-butylthiol is much, much higher.Purification Methods
Dry the thiol for several days over CaO, then distil it from CaO. Purify it as for 2-methylpropane-1-thiol above. [Beilstein 1 H 383, 1 II 416, 1 III 1589, 1 IV 1634.]삼차뷰틸 머캡탄 준비 용품 및 원자재
원자재
준비 용품
삼차뷰틸 머캡탄 공급 업체
글로벌( 167)공급 업체
공급자 | 전화 | 이메일 | 국가 | 제품 수 | 이점 |
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Hebei Mojin Biotechnology Co., Ltd | +86 13288715578 +8613288715578 |
sales@hbmojin.com | China | 12446 | 58 |
Hebei Yanxi Chemical Co., Ltd. | +8617531190177 |
peter@yan-xi.com | China | 5873 | 58 |
Hebei Chuanghai Biotechnology Co,.LTD | +86-13131129325 |
sales1@chuanghaibio.com | China | 5866 | 58 |
Capot Chemical Co.,Ltd. | 571-85586718 +8613336195806 |
sales@capotchem.com | China | 29798 | 60 |
Henan Tianfu Chemical Co.,Ltd. | +86-0371-55170693 +86-19937530512 |
info@tianfuchem.com | China | 21667 | 55 |
Win-Win Chemical CO., Limited | 0086-577-64498589 |
sales@win-winchemical.com | CHINA | 998 | 58 |
Hubei Jusheng Technology Co.,Ltd. | 18871490254 |
linda@hubeijusheng.com | CHINA | 28180 | 58 |
Hubei xin bonus chemical co. LTD | 86-13657291602 |
linda@hubeijusheng.com | CHINA | 22968 | 58 |
Chongqing Chemdad Co., Ltd | +86-023-6139-8061 +86-86-13650506873 |
sales@chemdad.com | China | 39916 | 58 |
CONIER CHEM AND PHARMA LIMITED | +8618523575427 |
sales@conier.com | China | 49392 | 58 |