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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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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
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:
Nicolas Cottenye et al.
Chemical communications (Cambridge, England), 48(20), 2615-2617 (2012-02-02)
The polymer modification of short nucleotide sequences has been achieved for future use as self-assembled biologically active structures with sizes in the nanometre range. Co-assembly of the resulting DNA-based amphiphilic block copolymers with native proteins demonstrates the self-assembly of biological-like
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
Hongfu Yuan et al.
Applied spectroscopy, 61(1), 96-101 (2007-02-22)
The molar ratio between methanol and isobutylene (MRMI) is very important to the operation of methyl tertiary butyl ether (MTBE) production units. A new on-line near-infrared (NIR) analytical system was integrated for monitoring the MRMI in real time and was

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