Huagongshe화공사 화학 정보 인쇄 보고서 · 연구 참고용
사이클로펜텐
사이클로펜텐 · 시클로펜텐 · Cyclopenten · opentene · Cyclopcnten · Cyclopentene · 1-Cyclopentene · Cyclopentene >Cyclopentene, 98+%
식별자 및 물리적 특성
| CAS No. | 142-29-0 |
|---|---|
| 분자식 | C5H8 |
| 평균 분자량 | 68.12 g/mol |
| 단동위원소 질량 | 68.06260026 g/mol |
| SMILES | C1=CCCC1 |
| InChIKey | LPIQUOYDBNQMRZ-UHFFFAOYSA-N |
| PubChem CID | 8882 |
| ChEMBL | CHEMBL1797299 |
| ChEBI | CHEBI:49155 |
| EC No. | 205-532-9 |
| DTXSID | DTXSID6029171 |
| 현지명 | 사이클로펜텐 |
화학 및 물리적 성질
| XLogP | 1.9 |
|---|---|
| 극성 표면적 | 0 |
| 수소 결합 공여자 수 | 0 |
| 수소 결합 수용자 수 | 0 |
| 회전 가능 결합 수 | 0 |
| 무거운 원자 수 | 5 |
| 형식 전하 | 0 |
| 복잡도 | 38 |
| 물질 분류 | Other Classes -> Aliphatics, UnsaturatedFlammable agents - 3rd degree |
| SpringerMaterials Properties | Schoenflies notation |
| 밀도 | 0.774 (USCG, 1999) - Less dense than waterwill float0.771 g/mL at 25 °C(lit.) |
| 인화점 | -30 °F (USCG, 1999)<−30 °F |
| 끓는 점 | 112 °F at 760 mmHg (USCG, 1999)44-46 °C(lit.) |
| 녹는점 | -211 °F (USCG, 1999)−135 °C(lit.) |
| 증기압 | 380.0 [mmHg]20.89 psi ( 55 °C) |
| Physical Description | Cyclopentene appears as 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.[CAMEO] Odor like gasoline[FAHG] Slightly sweetish odor[Alfa Aesar MSDS] |
| 굴절률 | n20/D 1.421(lit.) |
| 저장 조건 | 0-6°C |
| 용해도 | 물: 25°C에서 용해성0.535g/L |
| 물리적 상태 | 액체 |
| 비중 | 0.771 |
| 색상 | 무색의 |
| 용해도 | 섞일 수 없음 |
| 비열 | Cp(liquid): 1.8 J/(g·K), at 25℃ |
| BRN | 635707 |
| 헨리 상수 | 6.3 x 10-2 atmm3/mol at 25 °C (Hine and Mookerjee, 1975) |
| 안정성 | 안정적인. 가연성이 높습니다. 강한 산화제와 호환되지 않습니다. 차갑게 보관하세요. |
| InChI | 1S/C5H8/c1-2-4-5-3-1/h1-2H,3-5H2 |
| InChIKey | LPIQUOYDBNQMRZ-UHFFFAOYSA-N |
| SMILES | C1CC=CC1 |
| LogP(분배 계수) | 2.47 at 25℃ |
| NIST | Cyclopentene(142-29-0) |
| EPA | Cyclopentene (142-29-0) |
화학적 성질
Cyclopentene is a highly flammable liquid with a low flash point. It reacts readily with oxidizing agents.
안전 및 규제
| GHS 분류 | DangerH225 (100%): Highly Flammable liquid and vapor [Danger Flammable liquids]P210, P233, P240, P241, P242, P243, P261, P264, P264+P265, P270, P271, P273, P280, P301+P316, P301+P317, P302+P352, P303+P361+P353, P304+P340, P305+P351+P338, P317, P319, P321, P330, P331, P332+P317, P337+P317, P362+P364, P370+P378, P403+P233, P403+P235, P405, and P501 (click each P-code to see the statement)Aggregated GHS information provided per 190 reports by companies from 12 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.H225: Highly Flammable liquid and vapor [Danger Flammable liquids] |
|---|---|
| 규제 정보 | Chemical: CyclopenteneCyclopentene is listed on the EPA's Chemical Data Reporting (CDR) system. Manufacturers and importers of Cyclopentene are required to report information about their production and use of this chemical to the EPA under the Toxic Substances Control Act (TSCA). (40 eCFR Part 711)Status: Active Update: 25-02-2021 https://echa.europa.eu/registration-dossier/-/registered-dossier/27532Cyclopentene: Does not have an individual approval but may be used under an appropriate group standardThe New Jersey Worker and Community Right to Know Act requires public and private employers to provide information about hazardous substances at their workplaces. (N.J.S.A. 34:5A-1 et. seq.) |
| 운송 라벨(DOT) | Flammable Liquid |
| 화재 위험 | Special Hazards of Combustion Products: Vapor may travel considerable distance to a source of ignition and flashback. Explosion may occur under fire condition. (USCG, 1999)· HIGHLY FLAMMABLE: Will be easily ignited by heat, sparks or flames. |
| 건강 유해성 | May be harmful by inhalation, ingestion, or skin absorption. May cause eye and skin irritation. (USCG, 1999)CAUTION: Petroleum crude oil (UN1267) may contain TOXIC hydrogen sulphide gas. |
| 유해성 요약 | May polymerizeHigh vapor concentrations may have narcotic effects[CAMEO] May cause smarting and reddening of skin if spilled and allowed to remain on clothesHigh vapor concentrations may cause mild smarting of eyes and respiratory system, dizziness, and loss of consciousness[CHRIS] An irritant that can cause skin burns on prolonged contact[FAHG] May form explosive peroxidesHarmful by ingestion (may cause lung damage by aspiration)Inhalation may cause dizziness or drowsinessHarmful by ingestion and skin absorption[Alfa Aesar MSDS] See 1-Pentene. |
| 운송 번호 및 가이드(DOT) | 2246 128 |
| 반응성 그룹 | Hydrocarbons, Aliphatic Unsaturated |
| Reactivity Alerts | Highly Flammable |
| Reactivity Profile | 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. |
| DOT Hazard Classification | CyclopenteneUN2246Class 3 Flammable and combustible liquid (49 eCFR § 173.120)PG II: the degree of danger presented by the material is medium |
| Air and Water Reactions | Highly flammable. Insoluble in water. |
| Peroxide Forming Chemical | CyclopenteneB: Compounds that form peroxides on concentration (distillation/evaporation)Clark |
| 소화 | Excerpt from ERG Guide 128 [Flammable Liquids (Water-Immiscible)]: |
| 누출 비상 조치 | · CALL 911. Then call emergency response telephone number on shipping paper. If shipping paper not available or no answer, refer to appropriate telephone number listed on the inside back cover.· ELIMINATE all ignition sources (no smoking, flares, sparks or flames) from immediate area. |
| 응급 처치 | INHALATION: Call a physician. If inhaled, remove victim to fresh air. If not breathing, give artificial respiration. If breathing is difficult, give oxygen.General First Aid: |
| 노출 관리 및 개인 보호 | · Wear positive pressure self-contained breathing apparatus (SCBA). |
| 비화재 누출 대응 | Excerpt from ERG Guide 128 [Flammable Liquids (Water-Immiscible)]: |
| Isolation and Evacuation | Excerpt from ERG Guide 128 [Flammable Liquids (Water-Immiscible)]:Immediate precautionary measure |
| Personal Protective Equipment (PPE) | Self-contained breathing apparatus and protective clothing. (USCG, 1999) |
| Emergency Response Planning Guidelines | CAUTION: The majority of these products have a very low flash point. Use of water spray when fighting fire may be inefficient. |
| 유해 작용 | Neurotoxin - Acute solvent syndrome |
| Toxicity Data | LCLo (rat) = 16,000 ppm/4hr |
| 수질 위해 등급(WGK) | 3 |
| TSCA 등재 상태 | TSCA listed |
| RTECS 번호 | GY5950000 |
| 운송 번호(UN) | UN 2246 |
| 독성 | Acute oral LD50 for rats is 1,656 mg/kg (quoted, RTECS, 1985). |
| 관세 코드 | 29021990 |
| 위험 문구(R) | 11-21/22-36/37/38-65-67-52/53-38 |
| 위험 표시 | F,Xn |
| 안전 문구(S) | 9-16-26-33-36-62-61-36/37 |
| 포장분류 | II |
| 위험 등급 | 3Acute Tox. 4 DermalAcute Tox. 4 OralAsp. Tox. 1Flam. Liq. 2Skin Irrit. 2 |
| 기존화학 물질 | KE-09303 |
| F 고인화성물질 | 10-23 |
| 자연 발화 온도 | 743 °F |
| 저장 분류 | 3 - Flammable liquids |
용도
용도
Cyclopentene is a cycloalkene that is cyclopentane having one endocyclic double bond. Vapors heavier than air. Inhalation of high concentrations may be narcotic. Used to make rubber and plastics. Neopentyl phosphine ligand catalyzed Heck coupling of cyclopentene has been reported. Mechanism of reaction of ground state oxygen atom with cyclopentene has been investigated. Homopolymerization of cyclopentene has been reported. Photocatalytic oxidation of cyclopentene over various titanium(IV) oxide catalyst has been reported. Cyclopentene was used to investigate the [2+2] cycloaddition of diamond (001) surfaces with alkene.
일반 설명
Cyclopentene appears as 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.
제조 및 합성 방법
제조 방법
Cyclopentene is synthesized by selective hydrogenation of cyclopentadiene or by dehydration of cyclopentanol. It is produced industrially in large amounts by steam cracking of naphtha. Cyclopentene is present in coal tar, cigarette smoke, and automobile emissions.