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Methylcyclopentane

CAS No.
96-37-7
Chemical Name:
Methylcyclopentane
Synonyms
MCP;1-Methylcyclopentane;NSC 24836;Methylcyclopen;Methylcyclopentan;methyl-Cyclopetane;METHYLCYCLOPENTANE;methyl-cyclopentan;Cyclopetane,methyl-;cyclopentane,methyl-
CBNumber:
CB2854726
Molecular Formula:
C6H12
Molecular Weight:
84.16
MDL Number:
MFCD00001382
MOL File:
96-37-7.mol
Last updated:2024-03-14 15:18:26

Methylcyclopentane Properties

Melting point -142.4 °C
Boiling point 72 °C(lit.)
Density 0.749 g/mL at 25 °C(lit.)
vapor pressure 232.8 mm Hg ( 37.7 °C)
refractive index n20/D 1.409(lit.)
Flash point −11 °F
storage temp. Store below +30°C.
solubility In methanol, g/L: 380 at 5 °C, 415 at 10 °C, 500 at 15 °C, 595 at 20 °C, 740 at 25 °C, 1,100 at 30 °C. Miscible at higher temperatures (Kiser et al., 1961).
form Adhering Crystals
color White
Odor Like gasoline.
explosive limit 8.35%
Odor Threshold 1.7ppm
Water Solubility 41.8mg/L(25 ºC)
BRN 1900214
Henry's Law Constant 0.362 atm?m3/mol at 25 °C (Hine and Mookerjee, 1975)
Dielectric constant 2.0(20℃)
LogP 3.37 at 20℃
CAS DataBase Reference 96-37-7(CAS DataBase Reference)
FDA UNII 5G26CC1ASK
EPA Substance Registry System Methylcyclopentane (96-37-7)

SAFETY

Risk and Safety Statements

Symbol(GHS)  GHS hazard pictogramsGHS hazard pictograms
GHS02,GHS08
Signal word  Danger
Hazard statements  H225-H304
Precautionary statements  P210-P233-P240-P241-P301+P310-P331
Hazard Codes  F,Xn
Risk Statements  11-22-36/37/38-65
Safety Statements  16-26-33-36-62
RIDADR  UN 2298 3/PG 2
WGK Germany  3
RTECS  GY4640000
Autoignition Temperature 624 °F
TSCA  Yes
HS Code  2902 19 00
HazardClass  3
PackingGroup  II
NFPA 704
3
2 0

Methylcyclopentane price More Price(14)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 8.20789 Methylcyclopentane for synthesis 96-37-7 5ml $30.8 2024-03-01 Buy
Sigma-Aldrich 8.20789 Methylcyclopentane for synthesis 96-37-7 250ML $99.6 2024-03-01 Buy
Sigma-Aldrich 66490 Methylcyclopentane analytical standard 96-37-7 10ml $123 2024-03-01 Buy
Sigma-Aldrich 66490 Methylcyclopentane analytical standard 96-37-7 50ml $410 2024-03-01 Buy
TCI Chemical M0203 Methylcyclopentane >96.0%(GC) 96-37-7 25mL $24 2024-03-01 Buy
Product number Packaging Price Buy
8.20789 5ml $30.8 Buy
8.20789 250ML $99.6 Buy
66490 10ml $123 Buy
66490 50ml $410 Buy
M0203 25mL $24 Buy

Methylcyclopentane Chemical Properties,Uses,Production

Description

Methyl cyclopentane is a colorless liquid witha sweet gasoline-like odor. Molecular weight= 84.18;Boiling point = 72℃; Freezing/Melting point= - 142℃;Flash point= - 7℃; Autoignition temperature = 258℃.Explosive limits: LEL= 1.0%; UEL = 8.35%. HazardIdentification (based on NFPA-704 M Rating System):Health 2, Flammability 3, Reactivity 0.

Chemical Properties

Methylcyclopentane is a colorless, flammable liquid with a sweet gasoline-like odor. An odor threshold concentration of 1.7 ppmv was reported by Nagata and Takeuchi (1990). Soluble in ether, miscible with alcohol and benzene, insoluble in water.

Uses

Methylcyclopentane can undergo ring opening or ring enlargement to yield various hydrocarbons including branched and unbranched hexanes, cyclohexane and benzene.

Uses

Methylcyclopentane is used as an extractive solvent, an azeotropic distillation agent, and in organic synthesis. [Hawley]

Preparation

Methylcyclopentane mainly exists in industrial hexane, accounting for about 5%. However, because its boiling point is close to that of n-hexane (68.74°C), it is difficult to completely separate it by general rectification methods. Therefore, methylcyclopentane with a purity of more than 99% can be obtained by azeotropic distillation with methanol.

Definition

ChEBI: Methylcyclopentane is a cycloalkane that is cyclopentane substituted by a single methyl group. It has a role as a human metabolite and a plant metabolite. It is a cycloalkane and a volatile organic compound. It derives from a hydride of a cyclopentane.

General Description

Methylcyclopentane appears as a colorless liquid. Insoluble in water and less dense than water. Flash point near 20 °F. Very dangerous fire risk. Vapors may be narcotic and irritating. Used to make other chemicals.

Air & Water Reactions

Highly flammable. Insoluble in water.

Reactivity Profile

Methylcyclopentane can react vigorously with oxidizers. (NTP, 1992).

Hazard

Flammable, dangerous fire and explosionrisk. May be irritant and narcotic.

Health Hazard

Inhalation causes dizziness, nausea, and vomiting; concentrated vapor may cause unconsciousness and collapse. Liquid causes irritation of eyes and mild irritation of skin if allowed to remain. Ingestion causes irritation of stomach. Aspiration causes severe lung irritation, rapidly developing pulmonary edema, and central nervous system excitement followed by depression.

Fire Hazard

Behavior in Fire: Vapor is heavier than air and may travel a considerable distance to a source of ignition and flash back.

Safety Profile

Mildly toxic by inhalation. Probably irritating and narcotic in high concentration. Very dangerous fire hazard when exposed to heat, flame, or oxidizers. Can react vigorously with oxidizing materials. To fight fire, use foam, CO2, dry chemical. When heated to decomposition it emits acrid smoke and irritating fumes.

Synthesis

Methylcyclopentane, occurs in various petroleums.It is readily formed by the isomerization of cyclohexane with aluminum chloride.Hydrogen and Ni at 460℃ also convert cyclohexane to methylcyclopentane. It is more readily oxidized than cyclopentane, presumably because of the tertiary H. Heating with dil. nitric acid replaces this H by a nitro group.

Potential Exposure

This material is used as a solvent; as a fuel; and in chemical synthesis.

First aid

If this chemical gets into the eyes, remove any con-tact lenses at once and irrigate immediately for at least15 min, occasionally lifting upper and lower lids. Seek medi-cal attention immediately. If this chemical contacts the skin,remove contaminated clothing and wash immediately withsoap and water. Seek medical attention immediately. If thischemical has been inhaled, remove from exposure, begin res-cue breathing (using universal precautions, including resusci-tation mask) if breathing has stopped and CPR if heart actionhas stopped. Transfer promptly to a medical facility. Whenthis chemical has been swallowed, get medical attention.Give large quantities of water and induce vomiting. Do notmake an unconscious person vomit. Medical observation isrecommended for 24- -48 h after breathing overexposure, aspulmonary edema may be delayed. As first aid for pulmonaryedema, a doctor or authorized paramedic may consideradministering a corticosteroid spray.

Source

A constituent in gasoline. Harley et al. (2000) analyzed the headspace vapors of three grades of unleaded gasoline where ethanol was added to replace methyl tert-butyl ether. The gasoline vapor concentrations of methylcyclopentane in the headspace were 2.7 wt % for regular grade, 2.6 wt % for mid-grade, and 2.6 wt % for premium grade.
California Phase II reformulated gasoline contained methylcyclopentane at a concentration of 26.2 g/kg. Gas-phase tailpipe emission rates from gasoline-powered automobiles with and without catalytic converters were 4.32 and 604 mg/km, respectively (Schauer et al., 2002).

Environmental Fate

Photolytic. A photooxidation rate constant of 7.0 x 10-12 cm3/molecule?sec was reported for the reaction of methylcyclopentane and OH radicals in the atmosphere (Atkinson, 1990).
Chemical/Physical. Complete combustion in air produces carbon dioxide and water vapor. Methylcyclopentane will not hydrolyze because it does not contain a hydrolyzable functional group.
At elevated temperatures, rupture of the ring occurs and 1-propene is produced in a 40% yield. Other products include hydrogen and cyclic mono- and diolefins (Rice and Murphy, 1942).

Solubility in water

In methanol, g/L: 380 at 5 °C, 415 at 10 °C, 500 at 15 °C, 595 at 20 °C, 740 at 25 °C, 1,100 at 30 °C. Miscible at higher temperatures (Kiser et al., 1961).

storage

Color Code—Red: Flammability Hazard: Store ina flammable liquid storage area or approved cabinet awayfrom ignition sources and corrosive and reactive materials.Prior to working with this chemical you should be trainedon its proper handling and storage. Before entering confinedspace where this chemical may be present, check to makesure that an explosive concentration does not exist. Methylcyclopentane must be stored to avoid contact with oxidizers(such as perchlorates, peroxides, permanganates, chloratesand nitrates) and strong acids, since violent reactions occur.Sources of ignition, such as smoking and open flames, areprohibited where methyl cyclopentane is handled, used, orstored. Metal containers involving the transfer of 5 gallonsor more of methyl cyclopentane should be grounded andbonded. Drums must be equipped with self-closing valves,pressure vacuum bungs, and flame arresters. Use only nonsparking tools and equipment, especially when opening andclosing containers of methyl cyclopentane. Wherevermethyl cyclopentane is used, handled, manufactured, orstored, use explosion-proof electrical equipment andfittings.

Shipping

UN2298 Methyl cyclo pentane, Hazard Class: 3; Labels: 3-Flammable liquid

Purification Methods

Purification procedures include passage through columns of silica gel (prepared by heating in nitrogen to 350o prior to use) and activated basic alumina, distillation from sodium-potassium alloy, and azeotropic distillation with MeOH, followed by washing out the methanol with water, drying and distilling. It can be stored with CaH2 or sodium. [Vogel J Chem Soc 1331 1938, Beilstein 5 III 55, 5 IV 84.]

Incompatibilities

Incompatible with oxidizers (chlorates, nitrates, peroxides, permanganates, perchlorates, chlorine, bromine, fluorine, etc.); contact may cause fires or explosions. Keep away from alkaline materials, strong bases, strong acids, oxoacids, epoxides.

Waste Disposal

Dissolve or mix the material with a combustible solvent and burn in a chemical incinerator equipped with an afterburner and scrubber. All federal, state, and local environmental regulations must be observed.

Methylcyclopentane Preparation Products And Raw materials

Global( 171)Suppliers
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View Lastest Price from Methylcyclopentane manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
Methylcyclopentane pictures 2023-12-26 Methylcyclopentane
96-37-7
US $100.00-1.00 / KG 1KG 99% g-kg-tons, free sample is available Henan Fengda Chemical Co., Ltd
Methylcyclopentane pictures 2023-07-27 Methylcyclopentane
96-37-7
US $1.10 / g 1g 99.0% Min 100 Tons Shaanxi Didu New Materials Co. Ltd
Methylcyclopentane pictures 2023-06-25 Methylcyclopentane
96-37-7
US $0.00 / KG 1KG 99% 50000KG/month Hebei Mojin Biotechnology Co., Ltd
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