식별자 및 물리적 특성
| CAS No. | 287-92-3 |
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| 분자식 | C5H10 |
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| 평균 분자량 | 70.13 g/mol |
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| 단동위원소 질량 | 70.07825032 g/mol |
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| SMILES | C1CCCC1 |
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| InChIKey | RGSFGYAAUTVSQA-UHFFFAOYSA-N |
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| PubChem CID | 9253 |
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| ChEMBL | CHEMBL1370850 |
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| ChEBI | CHEBI:23492 |
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| EC No. | 206-016-6 |
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| DTXSID | DTXSID6024886 |
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화학 및 물리적 성질
| XLogP | 3 |
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| 극성 표면적 | 0 |
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| 수소 결합 공여자 수 | 0 |
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| 수소 결합 수용자 수 | 0 |
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| 회전 가능 결합 수 | 0 |
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| 무거운 원자 수 | 5 |
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| 형식 전하 | 0 |
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| 복잡도 | 11 |
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| LogP(분배 계수) | log Kow = 3.00 |
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| 냄새 | Mild, sweet odor |
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| 밀도 | 0.74 at 68 °F (USCG, 1999) - Less dense than waterwill float0.7457 g/cu cm at 20 °CRelative density (water = 1): 0.8 (20 °C)0.750.7457 @ 20°C |
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| Viscosity | 0.413 mPa s at 25 °CO.44 mPa*s at 20 °C |
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| Color/Form | Colorless liquid |
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| 용해도 | Insoluble (NIOSH, 2024)In water, 156 ppm at 25 °CMiscible with other hydrocarbon solvents, alcohol, etherMiscible with ethanol, ethyl ether, acetone, benzene, petroleum ether, carbon tetrachlorideSolubility in water: none |
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| 인화점 | less than 20 °F (USCG, 1999)-37 °C-20 °C (-4 °F) (Closed cup)<20 °F (<-7 °C) (Closed cup)-37 °C c.c. |
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| 끓는 점 | 120.7 °F at 760 mmHg (USCG, 1999)49.2 °C49 °C121 °F49.3 °C @760 [mm Hg] |
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| Decomposition | When heated to decomposition it emits acrid smoke and fumes. |
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| 녹는점 | -137 °F (USCG, 1999)-93.4 °C-94 °C-93.7 °C |
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| 증기 밀도 | 2.42 (Air = 1)Relative vapor density (air = 1): 2.4 |
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| 증기압 | 400 mmHg at 88 °F (NIOSH, 2024)317.8 [mmHg]VP: 400 mm Hg at 31.0 °C317.8 mm Hg at 25 °CVapor pressure, kPa at 20 °C: 45400 mmHg at 88 °F |
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안전 및 규제
| GHS 분류 | DangerH225: Highly Flammable liquid and vapor [Danger Flammable liquids]H412: Harmful to aquatic life with long lasting effects [Hazardous to the aquatic environment, long-term hazard]P210, P233, P240, P241, P242, P243, P273, P280, P303+P361+P353, P370+P378, P403+P235, and P501 (click each P-code to see the statement) |
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| 규제 정보 | Chemical: CyclopentaneCyclopentane is listed on the EPA's Chemical Data Reporting (CDR) system. Manufacturers and importers of Cyclopentane 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: 27-10-2022 https://echa.europa.eu/registration-dossier/-/registered-dossier/14830Cyclopentane: HSNO Approval: HSR001117 Approved with controlsThe 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.) |
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| 기타 안전 정보 | IMAP assessments - Cyclopentane: Human health tier I assessment |
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| 운송 라벨(DOT) | Flammable Liquid |
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| 화재 위험 | Behavior in Fire: Containers may explode. (USCG, 1999)· HIGHLY FLAMMABLE: Will be easily ignited by heat, sparks or flames.· Vapors may form explosive mixtures with air.· Vapors may travel to source of ignition and flash back.· Most vapors are heavier than air. They will spread along the ground and collect in low or confined areas (sewers, basements, tanks, etc.).· Vapor explosion hazard indoors, outdoors or in sewers.· Those substances designated with a (P) may polymerize explosively when heated or involved in a fire.· Runoff to sewer may create fire or explosion hazard.· Containers may explode when heated.· Many liquids will float on water.· Substance may be transported hot.· For hybrid vehicles, GUIDE 147 (lithium ion or sodium ion batteries) or GUIDE 138 (sodium batteries) should also be consulted.· If molten aluminum is involved, refer to GUIDE 169.Highly flammable. Heating will cause rise in pressure with risk of bursting. Vapour/air mixtures are explosive. |
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