Cyclopentane
- CAS No.
- 287-92-3
- Chemical Name:
- Cyclopentane
- Synonyms
- PENTAMETHYLENE;Cyclopentan;opentane;Cyclopcntan;CYCLOPENTANE;Cyclopentane 5;BLENDED PENTANE;Cyclopentane >Cyclopentane,95+%;(Cyclopentane) CAS:
- CBNumber:
- CB7363777
- Molecular Formula:
- C5H10
- Molecular Weight:
- 70.13
- MOL File:
- 287-92-3.mol
- MSDS File:
- SDS
- Modify Date:
- 2024/7/26 15:15:06
| Melting point | -94 °C (lit.) |
|---|---|
| Boiling point | 50 °C (lit.) |
| Density | 0.751 g/mL at 25 °C (lit.) |
| vapor density | ~2 (vs air) |
| vapor pressure | 18.93 psi ( 55 °C) |
| refractive index |
n |
| Flash point | −35 °F |
| storage temp. | Store below +30°C. |
| solubility | 0.156g/l insoluble |
| form | Powder |
| color | White |
| Odor | Like gasoline; mild, sweet. |
| explosive limit | 1.5-8.7%(V) |
| Water Solubility | Miscible with ethanol, ether and acetone. Slightly miscible with water. |
| λmax |
λ: 198 nm Amax: 1.0 λ: 210 nm Amax: 0.50 λ: 220 nm Amax: 0.10 λ: 240-400 nm Amax: 0.01 |
| Merck | 14,2741 |
| BRN | 1900195 |
| Henry's Law Constant | 0.164, 0.240, and 0.300 at 27.9, 35.8, and 45.0 °C, respectively (dynamic headspace, Hansen et al., 1995) |
| Exposure limits | TLV-TWA 600 ppm (～1720 mg/m3) (ACGIH). |
| Dielectric constant | 1.9（20℃） |
| Stability | Stable. Highly flammable. Note low flash point and wide explosion limits. Incompatible with strong oxidizing agents. Floats on water, so water is of limited value in putting out fires involving this material. |
| LogP | 3 at 20℃ |
| CAS DataBase Reference | 287-92-3(CAS DataBase Reference) |
| NIST Chemistry Reference | Cyclopentane(287-92-3) |
| EPA Substance Registry System | Cyclopentane (287-92-3) |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |  GHS02 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Danger | |||||||||
| Hazard statements | H225-H412 | |||||||||
| Precautionary statements | P210-P273 | |||||||||
| Hazard Codes | F | |||||||||
| Risk Statements | 11-52/53 | |||||||||
| Safety Statements | 9-16-29-33-61 | |||||||||
| RIDADR | UN 1146 3/PG 2 | |||||||||
| OEB | A | |||||||||
| OEL | TWA: 600 ppm (1720 mg/m3) | |||||||||
| WGK Germany | 1 | |||||||||
| RTECS | GY2390000 | |||||||||
| Autoignition Temperature | 682 °F | |||||||||
| TSCA | Yes | |||||||||
| HS Code | 2902 19 00 | |||||||||
| HazardClass | 3 | |||||||||
| PackingGroup | II | |||||||||
| Toxicity | LC (2 hr in air) in mice: 110 mg/l (Lazarew) | |||||||||
| NFPA 704 |
|
Cyclopentane price More Price(17)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich(India) | 459747 | Cyclopentane reagent grade, 98% | 287-92-3 | 100ML | ₹6329.4 | 2022-06-14 | Buy |
| Sigma-Aldrich(India) | 459747 | Cyclopentane reagent grade, 98% | 287-92-3 | 500ML | ₹14487.75 | 2022-06-14 | Buy |
| Sigma-Aldrich(India) | 8.18769 | Cyclopentane for synthesis | 287-92-3 | 50ML | ₹3760 | 2022-06-14 | Buy |
| Sigma-Aldrich(India) | 459747 | Cyclopentane reagent grade, 98% | 287-92-3 | 2L | ₹32859.45 | 2022-06-14 | Buy |
| Sigma-Aldrich(India) | 29680 | Cyclopentane analytical standard | 287-92-3 | 5ML | ₹1921.43 | 2022-06-14 | Buy |
Cyclopentane Chemical Properties,Uses,Production
Chemical Properties
Cyclopentane is a colourless flammable acyclic hydrocarbon liquid with a petrol-like smell. It is a widely used component in preparing products like analgesics, insecticides, sedatives, antitumor agents and also finds application in pharmaceutical industry.
Physical properties
Colorless, mobile, flammable liquid with an odor resembling cyclohexane.
Uses
Cyclopentane is a petroleum product. Itis formed from high-temperature catalyticcracking of cyclohexane or by reduction ofcyclopentadiene. It occurs in petroleum etherfractions and in many commercial solvents.It is used as a solvent for paint, in extractionsof wax and fat, and in the shoe industry.
Production Methods
Cyclopentane occurs in petroleum ether fractions and is prepared by cracking cyclohexane in the presence of alumina at high temperature and pressure or by reduction of cyclopentadiene.
Definition
ChEBI: A cycloalkane that consists of five carbons each bonded with two hydrogens above and below the plane. The parent of the class of cyclopentanes.
General Description
A clear colorless liquid with a petroleum-like odor. Flash point of -35°F. Less dense than water and insoluble in water. Vapors are heavier than air.
Air & Water Reactions
Highly flammable. Insoluble in water.
Reactivity Profile
CYCLOPENTANE is incompatible with strong oxidizing agents such as chlorine, bromine, fluorine. .
Health Hazard
Cyclopentane is a low-acute toxicant. Itsexposure at high concentrations may producedepression of the central nervous system withsymptoms of excitability, loss of equilibrium,stupor, and coma. Respiratory failure may occur in rats from 30–60 minutes’ exposureto 100,000–120,000 ppm in air. It is anirritant to the upper respiratory tract, skin,and eyes. No information is available inthe literature on the chronic effects fromprolonged exposure to cyclopentane.
Fire Hazard
Behavior in Fire: Containers may explode.
Chemical Reactivity
Reactivity with Water No reaction; Reactivity with Common Materials: No reaction; Stability During Transport: Stable; Neutralizing Agents for Acids and Caustics: Not pertinent; Polymerization: Not pertinent; Inhibitor of Polymerization: Not pertinent.
Safety Profile
Mildly toxic by ingestion and inhalation. High concentrations have narcotic action. A very dangerous fire hazard when exposed to heat or flame; can react with oxidizers. To fight fire, use foam, CO2, dry chemical. When heated to decomposition it emits acrid smoke and fumes.
Potential Exposure
Cyclopentane is used as a solvent.
Environmental Fate
Biological. Cyclopentane 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 octane and OH
radicals in the atmosphere: 3.7 x 10-12 cm3/molecule?sec at 300 K (Hendry and Kenley, 1979); 5.40
x 10-12 cm3/molecule?sec (Atkinson, 1979); 4.83 x 10-12 cm3/molecule?sec at 298 K (DeMore and
Bayes, 1999); 6.20 x 10-12, 5.24 x 10-12, and 4.43 x 10-12 cm3/molecule?sec at 298, 299, and 300 K,
respectively (Atkinson, 1985), 5.16 x 10-12 cm3/molecule?sec at 298 K (Atkinson, 1990), and 5.02
x 10-12 cm3/mol·sec at 295 K (Droege and Tilly, 1987).
Chemical/Physical. Cyclopentane will not hydrolyze because it has no hydrolyzable functional
group. Complete combustion in air yields carbon dioxide and water.
At elevated temperatures, rupture of the ring occurs forming ethylene and presumably allene
and hydrogen (Rice and Murphy, 1942).
Shipping
UN1146 Cyclopentane, Hazard Class: 3; Labels: 3-Flammable liquid.
Purification Methods
Free it from cyclopentene by two passages through a column of carefully dried and degassed activated silica gel. It occurs in petroleum and is HIGHLY FLAMMABLE. [NMR: Christl Chem Ber 108 2781 1975, Whitesides et al. 41 2882 1976, Beilstein 5 III 10, 5 IV 4.]
Incompatibilities
May form explosive mixture with air. May accumulate static electrical charges, and may cause ignition of its vapors. Contact with strong oxidizers may cause fire and explosion.
Waste Disposal
Dissolve or mix the material with a combustible solvent and burn in a chemical incinera- tor equipped with an afterburner and scrubber. All federal, state, and local environmental regulations must be observed.
Cyclopentane Preparation Products And Raw materials
Raw materials
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chevron_right| Supplier | Tel | Country | ProdList | Advantage | Inquiry |
|---|---|---|---|---|---|
| JSK Chemicals | +919879767970 | Gujarat, India | 3756 | 58 | Inquiry |
| Haldia Petrochemicals Ltd | +91-3371122334 +91-9830063577 | West Bengal, India | 9 | 58 | Inquiry |
| S D Fine Chem Limited | +91-9323715856 +91-9323715856 | Maharashtra, India | 368 | 58 | Inquiry |
| Haldia Petrochemicals Limited | 08048372054Ext 559 | Kolkata, India | 2 | 58 | Inquiry |
| Imkemex | 91-22-24157984 | Maharashtra, India | 33 | 58 | Inquiry |
| HiMedia Laboratories | 91-22-61471919 | Maharashtra, India | 1843 | 58 | Inquiry |
| TCI Chemicals (India) Pvt. Ltd. | 1800 425 7889 | New Delhi, India | 6778 | 58 | Inquiry |
| Otto Chemie Pvt. Ltd. | +91 9820041841 | Mumbai, India | 5873 | 58 | Inquiry |
| Alfa Aesar | 1 800 209 7001 | Maharashtra, India | 6913 | 58 | Inquiry |
| Central Drug House(P) Ltd. | 91-11-49404040 | New Delhi, India | 6160 | 58 | Inquiry |
| Supplier | Advantage |
|---|---|
| JSK Chemicals | 58 |
| Haldia Petrochemicals Ltd | 58 |
| S D Fine Chem Limited | 58 |
| Haldia Petrochemicals Limited | 58 |
| Imkemex | 58 |
| HiMedia Laboratories | 58 |
| TCI Chemicals (India) Pvt. Ltd. | 58 |
| Otto Chemie Pvt. Ltd. | 58 |
| Alfa Aesar | 58 |
| Central Drug House(P) Ltd. | 58 |
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