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Key Documents

58552

Sigma-Aldrich

2-Methylpropene

purum, ≥99.5%

Synonym(s):

Isobutylene

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About This Item

Linear Formula:
(CH3)2C=CH2
CAS Number:
Molecular Weight:
56.11
Beilstein:
773645
EC Number:
MDL number:
UNSPSC Code:
12142100
PubChem Substance ID:
NACRES:
NA.22

vapor density

2 (vs air)

Quality Level

vapor pressure

3278 mmHg ( 37.7 °C)

grade

purum

Assay

≥99.5%

autoignition temp.

869 °F

bp

−6.9 °C (lit.)

SMILES string

CC(C)=C

InChI

1S/C4H8/c1-4(2)3/h1H2,2-3H3

InChI key

VQTUBCCKSQIDNK-UHFFFAOYSA-N

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Packaging

Cylinder with net ~3.6 kg
DIN 477 nr.1

Other Notes

Sales restrictions may apply

Recommended products

Z742161 DIN 1 Regulator OR 99112 DIN 1 Valve

Pictograms

FlameGas cylinder

Signal Word

Danger

Hazard Statements

Precautionary Statements

Hazard Classifications

Flam. Gas 1 - Press. Gas Liquefied gas

Storage Class Code

2A - Gases

WGK

nwg

Flash Point(F)

-112.0 °F - closed cup

Flash Point(C)

-80 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Jong-Ho Choi et al.
Chemphyschem : a European journal of chemical physics and physical chemistry, 7(12), 2526-2532 (2006-11-09)
The radical-radical reaction mechanisms and dynamics of ground-state atomic oxygen [O(3P)] with the saturated tert-butyl radical (t-C4H9) are investigated using the density functional method and the complete basis set model. Two distinctive reaction pathways are predicted to be in competition:
Francesco Frusteri et al.
Bioresource technology, 118, 350-358 (2012-06-19)
Etherification of glycerol (GLY) with isobutylene (IB) to produce biofuels was investigated in liquid phase using spherical silica supported Hyflon® catalysts (SSHC). As reference catalyst, Amberlyst® 15 (A-15) acid ion-exchange resin was used. Experiments were carried out in batch mode
Jiwen Li et al.
Se pu = Chinese journal of chromatography, 22(1), 81-83 (2005-02-17)
A capillary column HP-AlO2O3/S PLOT(50 m x 0.32 mm i.d. x 8 microm) has been used for the analysis of trace hydrocarbon impurities in high purity isobutene. The results showed that these hydrocarbon impurities could be well separated and with
Cyril Vancura et al.
Analytical chemistry, 79(4), 1646-1654 (2007-02-15)
A novel resonant cantilever sensor system for liquid-phase applications is presented. The monolithic system consists of an array of four electromagnetically actuated cantilevers with transistor-based readout, an analog feedback circuit, and a digital interface. The biochemical sensor chip with a
Bianca N M van Leeuwen et al.
Applied microbiology and biotechnology, 93(4), 1377-1387 (2012-01-12)
Isobutene (2-methylpropene) is one of those chemicals for which bio-based production might replace the petrochemical production in the future. Currently, more than 10 million metric tons of isobutene are produced on a yearly basis. Even though bio-based production might also

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