2,2-디메틸부탄
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2,2-디메틸부탄 속성
- 녹는점
- −100 °C(lit.)
- 끓는 점
- 50 °C(lit.)
- 밀도
- 0.649 g/mL at 25 °C(lit.)
- 증기 밀도
- 2.97 (vs air)
- 증기압
- 5.35 psi ( 20 °C)
- 굴절률
- n
20/D 1.369(lit.)
- 인화점
- <−30 °F
- 저장 조건
- Flammables area
- 용해도
- In methanol: 590 and 800 g/L at 5 and 10 °C, respectively. Miscible at higher temperatures (Kiser et al., 1961). Miscible with other aliphatic hydrocarbons, e.g., pentane, hexane, heptane, etc.
- 산도 계수 (pKa)
- >14 (Schwarzenbach et al., 1993)
- 물리적 상태
- 액체
- 색상
- 무색투명~미황색
- Odor Threshold
- 20ppm
- 폭발한계
- ~7.7%
- 수용성
- 불용성
- BRN
- 1730736
- Henry's Law Constant
- 1.69(atm?m3/mol) at 25 °C (Mackay and Shiu, 1981)
- 노출 한도
- ACGIH TLV: TWA and STEL for all isomers except n-hexane are 500 and 1,000 ppm, respectively (adopted).
- Dielectric constant
- 1.8700000000000001
- 안정성
- 안정적이지만 습기에 민감할 수 있습니다. 가연성이 높습니다. 강한 산화제와 호환되지 않습니다.
- CAS 데이터베이스
- 75-83-2(CAS DataBase Reference)
안전
- 위험 및 안전 성명
- 위험 및 사전주의 사항 (GHS)
| 위험품 표기 | F,Xn,N | ||
|---|---|---|---|
| 위험 카페고리 넘버 | 11-38-51/53-65-67 | ||
| 안전지침서 | 9-16-29-33-61-62 | ||
| 유엔번호(UN No.) | UN 1208 3/PG 2 | ||
| OEB | A | ||
| OEL | TWA: 100.0 ppm; 350.0 mg/m3, STEL: 510.0 ppm; 1800.0 mg/m3 | ||
| WGK 독일 | 3 | ||
| RTECS 번호 | EJ9300000 | ||
| 자연 발화 온도 | 797 °F | ||
| 위험 등급 | 3 | ||
| 포장분류 | II | ||
| HS 번호 | 29011000 | ||
| 유해 물질 데이터 | 75-83-2(Hazardous Substances Data) | ||
| 독성 | Reported as an impurity (0.2 wt %) in 99.0–99.7 wt % 2,3-dimethylbutane (Chevron Phillips, 2004). | ||
| 기존화학 물질 | KE-11248 |
2,2-디메틸부탄 C화학적 특성, 용도, 생산
화학적 성질
2,2-dimethylbutane is the chain isomeric form of hexane. It is a colorless and flammable liquid with a specific gravity of 0.6444. Insoluble in water, miscible with alcohol, ether, acetone, benzene and petroleum ether. The solubility is similar to that of hexane and 2-methylpentane.물리적 성질
Clear, colorless liquid with a mild petroleum-like odor. Liquid quickly evaporates and forms conbustible fumes. An odor threshold concentration of 20 ppmv was reported by Nagata and Takeuchi (1990).용도
2,2-Dimethylbutane is an acyclic alkane. Its Research Octane Number (RON) has been reported to be 91.8. It is used to Component of high-octane motor and aviation fuels, intermediate for agricultural chemicals.생산 방법
2,2-Dimethylbutane is produced from crude oil, natural liquid gases, and petroleum refining processes.제조 방법
2,2-Dimethylbutane can be synthesised by the hydroisomerisation of 2,3-dimethylbutane using an acid catalyst.By the thermal or catalytic union (alkylation) of ethylene and isobutane, both recovered from refinery gases.
일반 설명
Colorless liquid with an odor of gasoline. Less dense than water and insoluble in water. Hence floats on water. Irritating vapor. Flash point -54°F.공기와 물의 반응
Highly flammable. Insoluble in water.반응 프로필
2,2-Dimethylbutane may be incompatible with strong oxidizing agents like nitric acid. Charring may occur followed by ignition of unreacted material and other nearby combustibles. In other settings, mostly unreactive. Not affected by aqueous solutions of acids, alkalis, most oxidizing agents, and most reducing agents. When heated sufficiently or when ignited in the presence of air, oxygen or strong oxidizing agents, burns exothermically to produce carbon dioxide and water.위험도
Highly flammable, dangerous fire and explosion risk, explosion limits 1.2–7%건강위험
Inhalation causes dizziness, nausea, and vomiting; concentrated vapor may cause unconsciousness and collapse. Contact with liquid causes irritation of eyes; repeated contact may produce irritation of skin. Ingestion causes irritation of stomach. Aspiration causes severe lung irritation, rapidly developing pulmonary edema, and central nervous system excitement followed by depression.Safety Profile
Probably an irritant and narcotic in high concentration. A very dangerous fire and explosion hazard when exposed to heat or flame; can react vigorously with oxidzing materials. Keep away from heat or open flame. To fight fire, use foam, CO2, dry chemical. When heated to decomposition it emits acrid smoke and irritating fumes.환경귀착
Photolytic. Reported photooxidation rate constants for the reaction of 2,2-dimethylbutane with OH radicals at 297, 299, and 300 K are 2.59 x 10-12, 6.16 x 10-12, and 2.59 x 10-12 cm3/molecule?sec, respectively (Atkinson, 1985, 1990).Chemical/Physical. Complete combustion in air yields carbon dioxide and water vapor. 2,2- Dimethylbutane will not hydrolyze because it has no hydrolyzable functional group.
Purification Methods
Distil it azeotropically with MeOH, then wash it with water, dry (Na2SO4) it, and distil it. [Beilstein 1 IV 367.]2,2-디메틸부탄 준비 용품 및 원자재
원자재
준비 용품
2,2-디메틸부탄 공급 업체
글로벌( 146)공급 업체
| 공급자 | 전화 | 이메일 | 국가 | 제품 수 | 이점 |
|---|---|---|---|---|---|
| Henan Fengda Chemical Co., Ltd | +86-371-86557731 +86-13613820652 |
info@fdachem.com | China | 20283 | 58 |
| Shenzhen Nexconn Pharmatechs Ltd | +86-755-89396905 +86-15013857715 |
admin@nexconn.com | China | 10311 | 58 |
| Hubei xin bonus chemical co. LTD | 86-13657291602 |
linda@hubeijusheng.com | CHINA | 22963 | 58 |
| career henan chemical co | +86-0371-86658258 +8613203830695 |
factory@coreychem.com | China | 29810 | 58 |
| Hefei TNJ Chemical Industry Co.,Ltd. | +86-0551-65418671 +8618949823763 |
sales@tnjchem.com | China | 34563 | 58 |
| Alfa Chemistry | |
info@alfa-chemistry.com | United States | 2344 | 58 |
| Aston Chemical | 13000000000 |
sales@astonchem.com | United States | 1634 | 58 |
| Shaanxi Didu New Materials Co. Ltd | +86-89586680 +86-13289823923 |
1026@dideu.com | China | 8670 | 58 |
| Aladdin Scientific | +1-+1(833)-552-7181 |
sales@aladdinsci.com | United States | 57505 | 58 |
| SHANGHAI KEAN TECHNOLOGY CO., LTD. | +8613817748580 |
cooperation@kean-chem.com | China | 40066 | 58 |