2-메틸테트라하이드로퓨란
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2-메틸테트라하이드로퓨란 속성
- 녹는점
- -136 °C
- 끓는 점
- 78-80 °C(lit.)
- 밀도
- 0.86 g/mL at 25 °C(lit.)
- 증기압
- 136 hPa (20 °C)
- 굴절률
- n
20/D 1.406(lit.)
- 인화점
- 10.4 °F
- 저장 조건
- Store below +30°C.
- 용해도
- 150g/L
- 물리적 상태
- 액체
- 색상
- 무색의
- 폭발한계
- 1.2-5.7%(V)
- 수용성
- 15g/100mL(25℃)
- 어는점
- -136℃
- BRN
- 102448
- Dielectric constant
- 6.97
- 안정성
- 안정적이지만 가연성이 높습니다. 산화제, 강산, 강염기와 호환되지 않습니다. 보관 시 폭발성 과산화물을 형성할 수 있으므로 억제제가 첨가된 상태로 공급되는 경우가 많습니다.
- LogP
- 1.1 at 20℃
- CAS 데이터베이스
- 96-47-9(CAS DataBase Reference)
안전
- 위험 및 안전 성명
- 위험 및 사전주의 사항 (GHS)
위험품 표기 | F,Xi | ||
---|---|---|---|
위험 카페고리 넘버 | 11-19-36/37-2017/11/19 | ||
안전지침서 | 16-23-39-33-26 | ||
유엔번호(UN No.) | UN 2536 3/PG 2 | ||
WGK 독일 | 2 | ||
RTECS 번호 | LU2800000 | ||
자연 발화 온도 | 270 °C | ||
TSCA | Yes | ||
위험 등급 | 3 | ||
포장분류 | II | ||
HS 번호 | 29321900 | ||
독성 | LD50 orally in Rabbit: > 300 - 2000 mg/kg LD50 dermal Rat > 2000 mg/kg | ||
기존화학 물질 | KE-33479 |
2-메틸테트라하이드로퓨란 C화학적 특성, 용도, 생산
물성
2- 메틸 테트라 히드로 푸란의 다른 이름은 2- 메틸 -THF; 유사한 냄새 에테르를 가진 무색 투명 액체이다. 에테르와 비슷한 냄새가 나며 유기 용제에 쉽게 용해됩니다.용도
2- 메틸 테트라 히드로 푸란은 클로로퀸 인산염, 인산 프리마 퀸 (Primaquine phosphate) 등을 만드는데 주로 사용되며 그리 냐르 반응에서 테트라 하이드로 푸란 대신에 벤젠, 톨루엔, 클로로포름 및 기타 용매의 대체물로 사용됩니다. 그것은 또한 널리 향신료, 새로운 재료 등의 합성에 사용됩니다. 자동차 용 연료 첨가제에도 사용됩니다.개요
2-Methyltetrahydrofuran (MeTHF or 2-MTHF) is a bio-based solvent that is recognized as the most favorable of ether solvents. The relatively high boiling point (80?C) and low melting point (-137?C) provide a broad temperature range for a myriad of processing conditions. It is a potential greener solvent alternative for organic synthesis. It shows resistance to reduction by lithium making it a promising candidate as electrolytes in lithium batteries. Its polarity and Lewis base strength is intermediate between tetrahydrofuran (THF) and diethyl ether. The ring opening reaction of 2-MTHF has been studied using acid chloride and iodide.화학적 성질
Colorless liquid; ether-like odor. Solubility in waterincreases with a decrease in temperature. Freelysoluble in most organic solvents.용도
2-Methyltetrahydrofuran acts as a solvent in organic synthesis. It is considered as a replacement for terahydrofuran due to its higher reaction temperature and easy separation after reaction. It is also useful in the electrolyte formulation for secondary lithium electrodes and as a component in alternative fuels. Further, it is used as a solvent for spectroscopic studies at -1960C. It also acts as a solvent for Grignard reagent in organometallic reactions. In addition to this, it plays an important role as a motor fuel.일반 설명
This product is a biorenewable and thus aligns with "Safer Solvents and Auxiliaries" and "Use of Renewable Feedstocks".2-Methyltetrahydrofuran (2-MTHF), a 2-methyl substituted tetrahdrofuran, is a biomass derived solvent. It is a potential greener solvent alternative for organic synthesis. It shows resistance to reduction by lithium making it a promising candidate as electrolytes in lithium batteries. Its polarity and Lewis base strength is intermediate between tetrahydrofuran (THF) and diethyl ether. The ring opening reaction of 2-MTHF has been studied using acid chloride and iodide to form secondary chlorides and primary iodides respectively. On long term storage, tetrahydrofuran forms organic peroxides. This process can be suppressed by adding butylated hydroxytoluene (BHT) as a stabilizer. BHT removes the free radicals required for the peroxide formation.
위험도
Flammable, dangerous fire risk.Purification Methods
Likely impurities are 2-methylfuran, methyldihydrofurans and hydroquinone (stabiliser, which is removed by distillation under reduced pressures). It is washed with 10% aqueous NaOH, dried, vacuum distilled from CaH2, passed through freshly activated alumina under nitrogen, and refluxed over sodium metal under vacuum. Store it over sodium. [Ling & Kevan J Phys Chem 80 592 1976.] Distil it from sodium under vacuum, and store it with sodium-potassium alloy (this treatment removes water and prevents the formation of peroxides). Alternatively, it can be freed from peroxides by treatment with ferrous sulfate and sodium bisulfate, then solid KOH, followed by drying with, and distilling from, sodium, or type 4A molecular sieves under argon. It may be difficult to remove *benzene if it is present as an impurity (can be readily detected by its ultraviolet absorption in the 249-268nm region). [Ichikawa & Yoshida J Phys Chem 88 3199 1984.] It has also been purifed by percolating through Al2O3 and fractionated collecting fraction b 79.5-80o. After degassing, the material is distilled onto degassed molecular sieves, then distilled onto anthracene and a sodium mirror. The solvent is then distilled from the green solution onto potassium mirror or sodium-potassium alloy, from which it is distilled again. [Mohammad & Kosower J Am Chem Soc 93 2713 1971.] It should be stored in the presence of 0.1% of hydroquinone or 2,6-di-tert-butyl –p-cresol as stabiliser. The R(+)-enantiomer has b 78-80o/atm and []D +27.5o (neat), and the S(-)-enantiomer has b 86o/atm and [] D -27.0o (neat) [Iffland & Davis J Org Chem 42 4150 1977, Gagnaire & Butt Bull Soc Chim Fr 312 1961, Beilstein 17 III/IV 60, 17/1 V 78.] HARMFUL VAPOURS.2-메틸테트라하이드로퓨란 준비 용품 및 원자재
원자재
2-메틸퓨란
PALLADIUM-CATALYSTS
팔라듐 염화물
하이드록시(5-)-2-펜탄온
아세트산푸르푸릴에스테르
테트라히드로푸르푸릴 알코올
푸르푸랄
2,5디메칠테트라하이드로퓨란
1,4-펜타디올
2-메틸테트라히드로피란
노르말헥산
2-(에톡시메틸)푸란2-(에톡시메틸)푸란
펜틸 발레레이트
준비 용품
2-메틸테트라하이드로퓨란 공급 업체
글로벌( 479)공급 업체
공급자 | 전화 | 이메일 | 국가 | 제품 수 | 이점 |
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Jinan Chengyuan Chemical Co. , Ltd. | +86-0531-88274992 +8615552568189 |
2408152070@qq.com | China | 10 | 58 |
Hebei Mojin Biotechnology Co., Ltd | +86 13288715578 +8613288715578 |
sales@hbmojin.com | China | 12446 | 58 |
Hebei Chuanghai Biotechnology Co,.LTD | +86-13131129325 |
sales1@chuanghaibio.com | China | 5882 | 58 |
Henan Fengda Chemical Co., Ltd | +86-371-86557731 +86-13613820652 |
info@fdachem.com | China | 20293 | 58 |
Capot Chemical Co.,Ltd. | 571-85586718 +8613336195806 |
sales@capotchem.com | China | 29798 | 60 |
Shanghai Daken Advanced Materials Co.,Ltd | +86-371-66670886 |
info@dakenam.com | China | 18628 | 58 |
Henan Tianfu Chemical Co.,Ltd. | +86-0371-55170693 +86-19937530512 |
info@tianfuchem.com | China | 21667 | 55 |
Shanghai Time Chemicals CO., Ltd. | +86-021-57951555 +8617317452075 |
jack.li@time-chemicals.com | China | 1807 | 55 |
Jiangsu Qingquan Chemical Co., Ltd. | +86-571-86589381,86589382,86589383 |
sales1@qqpharm.com | CHINA | 154 | 55 |
Hefei TNJ Chemical Industry Co.,Ltd. | +86-0551-65418679 +8618949832763 |
info@tnjchem.com | China | 2989 | 55 |
2-메틸테트라하이드로퓨란 관련 검색:
2-메틸퓨란 테트라하이드로푸란 2-(브로모메틸)테트라하이드로퓨란 메틸(3-)테트라히드로퓨란 메틸(2-)테트라히드로퓨란-3-온 솔비탄모노라우레이트 스판 60 테트라히드로푸르푸릴 알코올 메틸마그네슘브로마이드 메타크릴산 테트라하이드로푸르푸릴 γ-발레로 락톤 2,5디메칠테트라하이드로퓨란 2-메틸테트라하이드로퓨란
D-RIBULOSE
beta-D-Ribofuranose 1-acetate 2,3,5-tribenzoate
TETRAHYDRO-3-FURANMETHANOL
beta-D-Ribofuranose 1,2,3,5-tetraacetate
Tetrahydrofurfuryl chloride