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3-Methyl-1-butene

3-Methyl-1-butene
3-Methyl-1-butene structure
CAS No.
563-45-1
Chemical Name:
3-Methyl-1-butene
Synonyms
ISOAMYLENE;ISOPENTENE;3-Methylbutene;Vinylisopropyl;(CH3)2CHCH=CH2;Methylbutenemin;Methylbutene,95%;alpha-Isoamylene;ALPHA-ISOPENTENE;3-METHYLBUTENE-1
CBNumber:
CB5751808
Molecular Formula:
C5H10
Formula Weight:
70.13
MOL File:
563-45-1.mol

3-Methyl-1-butene Properties

Melting point:
-168 °C
Boiling point:
20 °C(lit.)
Density 
0.627 g/mL at 20 °C(lit.)
vapor pressure 
14.97 psi ( 20 °C)
refractive index 
n20/D 1.364
Flash point:
-57 °C
storage temp. 
−20°C
solubility 
Soluble in alcohol, benzene, and ether (Weast, 1986)
pka
>14 (Schwarzenbach et al., 1993)
form 
neat
Water Solubility 
130 mg/kg at 25 °C (shake flask-GC, McAuliffe, 1966)
BRN 
505980
Henry's Law Constant
(atm?m3/mol): 0.535 at 25 °C (Hine and Mookerjee, 1975)
CAS DataBase Reference
563-45-1(CAS DataBase Reference)
FDA UNII
I08ZWX8BKL
NIST Chemistry Reference
1-Butene, 3-methyl-(563-45-1)
EPA Substance Registry System
3-Methyl-1-butene (563-45-1)
SAFETY
  • Risk and Safety Statements
Symbol(GHS) 
GHS02,GHS07,GHS08
Signal word  Danger
Hazard statements  H224-H304-H315-H319-H335
Precautionary statements  P210-P261-P301+P310-P305+P351+P338-P331
Hazard Codes  F+,Xn
Risk Statements  12-36/37/38-65
Safety Statements  16-26-62
RIDADR  UN 2561 3/PG 1
WGK Germany  3
4.5-31
HazardClass  3.1
PackingGroup  I
NFPA 704
4
2 0

3-Methyl-1-butene price More Price(13)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 257931 3-Methyl-1-butene 95% 563-45-1 100g $192 2021-12-16 Buy
Sigma-Aldrich 257931 3-Methyl-1-butene 95% 563-45-1 400g $480 2021-12-16 Buy
TCI Chemical M0177 3-Methyl-1-butene (in cylinder without valve) [To use this product charged in cylinder, a valve is required which is sold separately (Product Code:V0030)] >95.0%(GC) 563-45-1 100g $217 2021-12-16 Buy
TCI Chemical M2563 3-Methyl-1-butene (ca. 15% in Dichloromethane, ca. 2.5mol/L) 563-45-1 100mL $89 2021-12-16 Buy
SynQuest Laboratories 1300-1-26 3-Methyl-1-butene 95% 563-45-1 5 g $15 2021-12-16 Buy

3-Methyl-1-butene Chemical Properties,Uses,Production

Chemical Properties

Colorless, extremely volatile liquid or gas; disagreeable odor.Soluble in alcohol; insoluble in water.

Physical properties

Colorless, flammable liquid or gas with a disagreeable odor

Uses

Organic synthesis, high-octane fuel manufacture.

Definition

ChEBI: An alkene that is but-1-ene carrying a methyl substituent at position 3.

General Description

A colorless volatile liquid with a disagreeable odor. Insoluble in water and less dense than water. Vapors heavier than air. Flash point below 0°F. Used to make other chemicals.

Air & Water Reactions

Highly flammable. Insoluble in water.

Reactivity Profile

3-Methyl-1-butene 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.

Hazard

Highly flammable, dangerous fire and explosion risk, explosive limits 1.6–9.1%.

Health Hazard

Inhalation or contact with material may irritate or burn skin and eyes. Fire may produce irritating, corrosive and/or toxic gases. Vapors may cause dizziness or suffocation. Runoff from fire control or dilution water may cause pollution.

Safety Profile

Very dangerous fire hazard when exposed to heat, flame, or oxidizers. Explosive in the form of vapor when exposed to heat or flame. To fight fire, use alcohol foam, mist, spray, dry chemical, CO2. When heated to decomposition it emits acrid smoke and irritating fumes. See also 2-METHYL-1 BUTENE.

Source

Schauer et al. (1999) reported 3-methyl-1-butene in a diesel-powered medium-duty truck exhaust at an emission rate of 160 μg/km.
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 3-methyl-1-butene was 6.9 mg/kg of pine burned. Emission rates of 3-methyl-1-butene were not measured during the combustion of oak and eucalyptus.
California Phase II reformulated gasoline contained 3-methyl-1-butene at a concentration of 380 mg/kg. Gas-phase tailpipe emission rates from gasoline-powered automobiles with and without catalytic converters were 0.35 and 22.5 mg/km, respectively (Schauer et al., 2002).

Environmental Fate

Photolytic. The following rate constants were reported for the reaction of 3-methyl-1-butene and OH radicals in the atmosphere: 3.0 x 10-11 cm3/molecule?sec (Atkinson et al., 1979); 6.07 to 9.01 x 10-11 cm3/molecule?sec (Atkinson, 1985); 3.18 x 10-11 cm3/molecule?sec (Atkinson, 1990).
Chemical/Physical. Complete combustion in air yields carbon dioxide and water.

3-Methyl-1-butene Preparation Products And Raw materials

Raw materials

Preparation Products


3-Methyl-1-butene Suppliers

Global( 77)Suppliers
Supplier Tel Fax Email Country ProdList Advantage
Hubei xin bonus chemical co. LTD
86-13657291602
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career henan chemical co
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Shaanxi Dideu Medichem Co. Ltd
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View Lastest Price from 3-Methyl-1-butene manufacturers

Image Release date Product Price Min. Order Purity Supply Ability Manufacturer
2020-01-13 3-Methyl-1-butene
563-45-1
US $1.00 / KG 1KG 99% 20T Shaanxi Dideu Medichem Co. Ltd
2020-01-05 3-Methyl-1-butene
563-45-1
US $7.00 / KG 1KG 99% 100Kg Career Henan Chemical Co

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