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2-methylpentane

Product Name
2-methylpentane
CAS No.
107-83-5
Chemical Name
2-methylpentane
Synonyms
METHYLPENTANE;pentane,2-methyl-;NSC 66496;Kyowazol C 600;2-METHYLPENTANE;Kyowasol C 600M;Methylpentane,99%;(CH3)2CH(CH2)2CH3;1,1-dimethylbutane;2-Methylpentane>
CBNumber
CB5852723
Molecular Formula
C6H14
Formula Weight
86.18
MOL File
107-83-5.mol
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2-methylpentane Property

Melting point:
-154 °C (lit.)
Boiling point:
62 °C (lit.)
Density 
0.653 g/mL at 25 °C (lit.)
vapor density 
3 (vs air)
vapor pressure 
6.77 psi ( 37.7 °C)
refractive index 
n20/D 1.371(lit.)
Flash point:
−10 °F
storage temp. 
Store below +30°C.
solubility 
0.14g/l
form 
Liquid
color 
Clear colorless
Odor Threshold
7ppm
explosive limit
1.2-7.4%(V)
Water Solubility 
Miscible with alcohol, ether, acetone and chloroform. Immiscible with water.
BRN 
1730735
Henry's Law Constant
0.697, 0.694, 0.633, 0.825, and 0.848 (atm?m3/mol)at 10, 15, 20, 25, and 30 °C, respectively (EPICS, Ashworth et al., 1988)
Exposure limits
ACGIH TLV: TWA and STEL for all isomers except n-hexane are 500 and 1,000 ppm, respectively (adopted).
Dielectric constant
1.8899999999999999
Stability:
Stable. Highly flammable. Gas/vapour mixtures explosive at some concentrations.
LogP
3.214 at 25℃ and pH7
CAS DataBase Reference
107-83-5(CAS DataBase Reference)
EPA Substance Registry System
2-Methylpentane (107-83-5)
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Safety

Hazard Codes 
F,Xn,N
Risk Statements 
11-38-51/53-65-67
Safety Statements 
9-16-29-33-61-62
RIDADR 
UN 1208 3/PG 2
OEB
A
OEL
TWA: 100.0 ppm; 350.0 mg/m3, STEL: 510.0 ppm; 1800.0 mg/m3
WGK Germany 
2
RTECS 
SA2985000
Autoignition Temperature
583 °F
TSCA 
Yes
HazardClass 
3
PackingGroup 
II
HS Code 
29012990
Hazardous Substances Data
107-83-5(Hazardous Substances Data)
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Danger
Hazard statements

H225Highly Flammable liquid and vapour

H304May be fatal if swallowed and enters airways

H315Causes skin irritation

H336May cause drowsiness or dizziness

H373May cause damage to organs through prolonged or repeated exposure

H411Toxic to aquatic life with long lasting effects

Precautionary statements

P201Obtain special instructions before use.

P210Keep away from heat/sparks/open flames/hot surfaces. — No smoking.

P273Avoid release to the environment.

P302+P352IF ON SKIN: wash with plenty of soap and water.

P308+P313IF exposed or concerned: Get medical advice/attention.

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
8.20818
Product name
2-Methylpentane
Purity
for synthesis
Packaging
100mL
Price
$58.3
Updated
2024/03/01
Sigma-Aldrich
Product number
8.20818
Product name
2-Methylpentane
Purity
for synthesis
Packaging
500mL
Price
$216
Updated
2024/03/01
Sigma-Aldrich
Product number
68310
Product name
2-Methylpentane
Purity
analytical standard
Packaging
5ml
Price
$77.6
Updated
2024/03/01
Sigma-Aldrich
Product number
650544
Product name
Hexane, mixture of isomers
Purity
HPLCPlus,forHPLC,GC,andresidueanalysis,≥98.5%
Packaging
1L
Price
$75.6
Updated
2024/03/01
Sigma-Aldrich
Product number
68310
Product name
2-Methylpentane
Purity
analytical standard
Packaging
50ml
Price
$452
Updated
2024/03/01
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2-methylpentane Chemical Properties,Usage,Production

Chemical Properties

colourless liquid

Chemical Properties

2-Methylpentane (isohexane), C6H14, is a flammable liquid with a specific gravity of 0.653. It occurs naturally in petroleum and gas and as a plant volatile. It is found in sources associated with petroleum products such as petroleum manufacture, natural gas, turbines, and automobiles.

Physical properties

Clear, colorless, very flammable liquid with an odor similar to hexane. An odor threshold concentration of 8.9 ppmv was reported by Nagata and Takeuchi (1990).

Uses

Organic synthesis, solvent.

Uses

2-Methylpentane is employed as a raw material, rubber solvent and vegetable oil extraction solvent. It is also used as a solvent in adhesives. Further, it is used as an intermediate in organic synthesis and finds application in food, preservatives, cosmetics, pharmaceuticals, beverages and flavor enhancer.

Uses

2-Methylpentane is mainly used in studies involving the functionalization of aliphatic C–H bonds using different carbene insertion processes to form C–H insertion products. The metal-free Ritter-type amination reaction of tertiary C–H bond using iodic acid as an oxidant in the presence of N-hydroxyphthalimide has also been reported.

Definition

ChEBI: 2-Methylpentane is an alkane.

Production Methods

Isohexane is manufactured by fractional distillation of gasoline derived from crude oil or liquid product derived from natural gas.

General Description

Watery liquid with a gasoline-like odor, Floats on water. Produces an irritating vapor.

Air & Water Reactions

Highly flammable.

Reactivity Profile

Saturated aliphatic hydrocarbons, such as ISOHEXENE, may be incompatible with strong oxidizing agents like nitric acid. Charring of the hydrocarbon may occur followed by ignition of unreacted hydrocarbon and other nearby combustibles. In other settings, aliphatic saturated hydrocarbons are mostly unreactive. They are not affected by aqueous solutions of acids, alkalis, most oxidizing agents, and most reducing agents.

Hazard

Flammable, dangerous fire risk, reacts vig-orously with oxidizing materials.

Health Hazard

Inhalation causes irritation of respiratory tract, cough, mild depression, cardiac arrhythmias. Aspiration causes severe lung irritation, coughing, pulmonary edema; excitement followed by depression. Ingestion causes nausea, vomiting, swelling of abdomen, headache, depression.

Source

Schauer et al. (1999) reported 2-methylpentane in a diesel-powered medium-duty truck exhaust at an emission rate of 930 μg/km.
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 2-methylpentane in the headspace were 9.3 wt % for regular grade, 9.8 wt % for mid-grade, and 10.4 wt % for premium grade.
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 2-methylpentane was 8.6 mg/kg of pine burned. Emission rates of 2-methylpentane were not measured during the combustion of oak and eucalyptus.
California Phase II reformulated gasoline contained 2-methylpentane at a concentration of 36.9 g/kg. Gas-phase tailpipe emission rates from gasoline-powered automobiles with and without catalytic converters were 6.31 and 827 mg/km, respectively (Schauer et al., 2002).
Reported as an impurity (0.1 wt %) in 99.0–99.7 wt % 2,3-dimethylbutane (Chevron Phillips, 2004).

Environmental Fate

Photolytic. When synthetic air containing gaseous nitrous acid and 2-methylpentane was exposed to artificial sunlight (λ = 300–450 nm), acetone, propionaldehyde, peroxyacetal nitrate, peroxypropionyl nitrate, and possibly two isomers of hexyl nitrate and propyl nitrate formed as products (Cox et al., 1980).
Based on a photooxidation rate constant of 5.6 x 10-12 cm3/molecule?sec for the reaction of 2- methylpentane and OH radicals, the atmospheric lifetime is 25 h (Altshuller, 1991).
Chemical/Physical: Complete combustion in air yields carbon dioxide and water vapor. 2- Methylpentane will not hydrolyze because it does not contain a hydrolyzable functional group.

Purification Methods

Purify it by azeotropic distillation with MeOH, followed by washing out the MeOH with water, drying (CaCl2, then sodium), and distilling it. [Forziati et al. J Res Nat Bur Stand 36 129 1946.]

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2-methylpentane Suppliers

TCI Europe
Tel
320-37350700
Fax
+32 (0)37350701
Email
sales@tcieurope.eu
Country
Europe
ProdList
23671
Advantage
75
kemikalieimport
Tel
--
Fax
--
Email
Sales@kemikalieimport.dk
Country
Europe
ProdList
6685
Advantage
47
Camida
Tel
--
Fax
--
Email
info@camida.com
Country
Europe
ProdList
3704
Advantage
71
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View Lastest Price from 2-methylpentane manufacturers

Henan Fengda Chemical Co., Ltd
Product
2-methylpentane 107-83-5
Price
US $100.00-1.00/KG
Min. Order
1KG
Purity
99%
Supply Ability
g-kg-tons, free sample is available
Release date
2023-12-25
Career Henan Chemical Co
Product
isohexane 107-83-5
Price
US $2.00/KG
Min. Order
1KG
Purity
≥98%
Supply Ability
20 tons
Release date
2019-12-27

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