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사이클로펜텐

사이클로펜텐
사이클로펜텐 구조식 이미지
카스 번호:
142-29-0
한글명:
사이클로펜텐
동의어(한글):
사이클로펜텐;시클로펜텐
상품명:
Cyclopentene
동의어(영문):
Cyclopcnten;Cyclopenten;Cyclopentene;1-Cyclopentene;Cyclopentene, 98+%;CYCLOPENTENE, STAB.;Cyclopentene, tech.;Cyclopentene, tech., ≥95%;Cyclopentene, ca 90%, tech;Cyclopentene, tech., ca 90%
CBNumber:
CB7231452
분자식:
C5H8
포뮬러 무게:
68.12
MOL 파일:
142-29-0.mol

사이클로펜텐 속성

녹는점
−135 °C(lit.)
끓는 점
44-46 °C(lit.)
밀도
0.771 g/mL at 25 °C(lit.)
증기압
20.89 psi ( 55 °C)
굴절률
n20/D 1.421(lit.)
인화점
<−30 °F
저장 조건
0-6°C
용해도
water: soluble0.535g/L at 25°C
물리적 상태
Liquid
색상
Colorless
수용성
immiscible
감도
Air Sensitive
BRN
635707
Henry's Law Constant
6.3 x 10-2 atm?m3/mol at 25 °C (Hine and Mookerjee, 1975)
안정성
Stable. Highly flammable. Incompatible with strong oxidizing agents. Store cold.
InChIKey
LPIQUOYDBNQMRZ-UHFFFAOYSA-N
CAS 데이터베이스
142-29-0(CAS DataBase Reference)
NIST
Cyclopentene(142-29-0)
EPA
Cyclopentene(142-29-0)
안전
  • 위험 및 안전 성명
  • 위험 및 사전주의 사항 (GHS)
위험품 표기 F,Xn
위험 카페고리 넘버 11-21/22-36/37/38-65-67-52/53-38
안전지침서 9-16-26-33-36-62-61-36/37
유엔번호(UN No.) UN 2246 3/PG 2
WGK 독일 3
RTECS 번호 GY5950000
F 고인화성물질 10-23
자연 발화 온도 743 °F
TSCA Yes
위험 등급 3
포장분류 II
HS 번호 29021990
독성 Acute oral LD50 for rats is 1,656 mg/kg (quoted, RTECS, 1985).
그림문자(GHS):
신호 어: Danger
유해·위험 문구:
암호 유해·위험 문구 위험 등급 범주 신호 어 그림 문자 P- 코드
H225 고인화성 액체 및 증기 인화성 액체 구분 2 위험 P210,P233, P240, P241, P242, P243,P280, P303+ P361+P353, P370+P378,P403+P235, P501
H302 삼키면 유해함 급성 독성 물질 - 경구 구분 4 경고 P264, P270, P301+P312, P330, P501
H304 삼켜서 기도로 유입되면 치명적일 수 있음 흡인 유해성물질 구분 1 위험
H312 피부와 접촉하면 유해함 급성 독성 물질 - 경피 구분 4 경고 P280,P302+P352, P312, P322, P363,P501
H315 피부에 자극을 일으킴 피부부식성 또는 자극성물질 구분 2 경고 P264, P280, P302+P352, P321,P332+P313, P362
H319 눈에 심한 자극을 일으킴 심한 눈 손상 또는 자극성 물질 구분 2A 경고 P264, P280, P305+P351+P338,P337+P313P
H402 수생생물에 유해함 수생 환경유해성 물질 - 급성 구분 3
H412 장기적 영향에 의해 수생생물에 유해함 수생 환경유해성 물질 - 만성 구분 3 P273, P501
예방조치문구:
P210 열·스파크·화염·고열로부터 멀리하시오 - 금연 하시오.
P233 용기를 단단히 밀폐하시오. 용기는 환기가 잘 되는 곳에 단단히 밀폐하여 보관하시오.
P240 용기와 수용설비를 접지 및 접합시키시오.
P264 취급 후에는 손을 철저히 씻으시오.
P264 취급 후에는 손을 철저히 씻으시오.
P270 이 제품을 사용할 때에는 먹거나, 마시거나 흡연하지 마시오.
P273 환경으로 배출하지 마시오.
P280 보호장갑/보호의/보안경/안면보호구를 착용하시오.
P315 즉시 의사의 진료/치료를 받을 것
P331 토하게 하지 마시오.
P301+P310 삼켰다면 즉시 의료기관(의사)의 진찰을 받으시오.
P301+P330+P331 삼켰다면 입을 씻어내시오. 토하게 하려 하지 마시오.
P370+P378 화재 시 불을 끄기 위해 (Section 5. 폭발, 화재시 대처방법의 적절한 소화제)을(를) 사용하시오.
P403 환기가 잘 되는 곳에 보관하시오.
P403+P235 환기가 잘 되는 곳에 보관하고 저온으로 유지하시오.
P501 ...에 내용물 / 용기를 폐기 하시오.

사이클로펜텐 MSDS


Cyclopentene

사이클로펜텐 C화학적 특성, 용도, 생산

화학적 성질

colourless liquid with a petrol-like odour

물리적 성질

Clear, colorless, watery, very flammable liquid with a characteristic sweet, petroleum-like odor.

용도

Cross-linking agent; organic synthesis; solvent; extracting agent.

정의

ChEBI: A cycloalkene that is cyclopentane having one endocyclic double bond.

일반 설명

A colorless liquid. Less dense than water and insoluble in water. Flash point below 0°F. Vapors heavier than air. Inhalation of high concentrations may be narcotic. Used to make rubber and plastics.

공기와 물의 반응

Highly flammable. Insoluble in water.

반응 프로필

Cyclopentene may react vigorously with strong oxidizing agents. May react exothermically with reducing agents to release hydrogen gas. In the presence of various catalysts (such as acids) or initiators, may undergo exothermic addition polymerization reactions.

건강위험

May be harmful by inhalation, ingestion, or skin absorption. May cause eye and skin irritation.

화재위험

Special Hazards of Combustion Products: Vapor may travel considerable distance to a source of ignition and flashback. Explosion may occur under fire condition.

Safety Profile

Moderately toxic by ingestion and skin contact. A very dangerous fire hazard when exposed to flame or heat; can react with oxidning materials. Keep away from heat and open flame. To fight fire, use foam, CO2, dry chemical.

Source

Schauer et al. (2001) measured organic compound emission rates for volatile organic compounds, gas-phase semi-volatile organic compounds, and particle-phase organic compounds from the residential (fireplace) combustion of pine, oak, and eucalyptus. The gas-phase emission rate of cyclopentene was 7.8 mg/kg of pine burned. Emission rates of cyclopentene were not measured during the combustion of oak and eucalyptus.
California Phase II reformulated gasoline contained cyclopentene at a concentration of 1,120 mg/kg. Gas-phase tailpipe emission rates from gasoline-powered automobiles with and without catalytic converters were 480 and 31,700 μg/km, respectively (Schauer et al., 2002).
Given that cyclopentene is prepared from cyclohepentanol, the latter may be present as an impurity.

환경귀착

Biological. Cyclopentene may be oxidized by microbes to cyclopentanol, which may oxidize to cyclopentanone (Dugan, 1972).
Photolytic. The following rate constants were reported for the reaction of cyclopentene with OH radicals in the atmosphere: 6.39 x 10-11 cm3/molecule?sec (Atkinson et al., 1983), 4.99 x 10-11 cm3/molecule?sec at 298 K (Rogers, 1989), 4.0 x 10-10 cm3/molecule?sec (Atkinson, 1990) and 6.70 x 10-11 cm3/molecule?sec (Sablji? and Güsten, 1990); with ozone in the atmosphere: 8.13 x 10-16 at 298 K (Japar et al., 1974) and 9.69 x 10-16 cm3/molecule?sec at 294 K (Adeniji et al., 1981); with NO3 in the atmosphere: 4.6 x 10-13 cm3/molecule?sec at 298 K (Atkinson, 1990) and 5.81 x 10-13 cm3/molecule?sec at 298 K (Sablji? and Güsten, 1990).
Chemical/Physical. Gaseous products formed from the reaction of cyclopentene with ozone were (% yield): formic acid, carbon monoxide, carbon dioxide, ethylene , formaldehyde, and butanal. Particulate products identified include succinic acid, glutaraldehyde, 5-oxopentanoic acid, and glutaric acid (Hatakeyama et al., 1987).
At elevated temperatures, rupture of the C-C bond occurs forming molecular hydrogen and cyclopentadiene (95% yield) as the principal products (Rice and Murphy, 1942).

Purification Methods

Free cyclopentene from hydroperoxide by refluxing with cupric stearate. Fractionally distil it from Na. It can be chromatographed on a Dowex 710-Chromosorb W GLC column. Methods for cyclohexene should be applicable here. Also, it has been washed with 1M NaOH solution followed by water. It was dried over anhydrous Na2SO4, distilled over powdered NaOH under nitrogen, and passed through neutral alumina before use [Woon et al. J Am Chem Soc 108 7990 1986]. It was distilled in a dry nitrogen atmosphere from powdered fused NaOH through a Vigreux column (p 11), and then passed through activated neutral alumina before use [Wong et al. J Am Chem Soc 109 3428 1987]. [Beilstein 5 IV 209.]

사이클로펜텐 준비 용품 및 원자재

원자재

준비 용품


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