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About This Item
Linear Formula:
CH2=CH2
CAS Number:
Molecular Weight:
28.05
UNSPSC Code:
12142100
NACRES:
NA.22
PubChem Substance ID:
EC Number:
200-815-3
Beilstein/REAXYS Number:
1730731
MDL number:
Product Name
Ethylene, 99.99%
InChI key
VGGSQFUCUMXWEO-UHFFFAOYSA-N
InChI
1S/C2H4/c1-2/h1-2H2
SMILES string
C=C
vapor density
0.97 (vs air)
vapor pressure
35.04 atm ( 20 °C)
assay
99.99%
autoignition temp.
842 °F
expl. lim.
36 %
bp
−104 °C (lit.)
mp
−169 °C (lit.)
Quality Level
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Application
Ethylene was used in the preparation of polyethylene (PE), by polymerization in the presence of titanium complexes having F(s) or CF3(s) containing phenoxy-imine chelate ligands.
General description
Ethylene (ET), a simple olefin, is an important synthetic reagent. It is also a plant hormone that regulates various physiological and developmental processes, such as ripening of fruit, abscission, senescence and responses to wounding in plants. Pd(II) and Ni(II)-based catalysts are reported to catalyze the polymerization of ET to afford high molecular weight polymers. Mechanism of Diels-Alder Reaction of 1,3-butadiene with ET has been investigated. Diels-Alder reaction between butadiene and ET, via concerted and the stepwise mechanisms has been investigated by ab initio MO methods. Dehydration of algae-produced ethanol to ET in the presence of nanoscale catalyst HZSM-5 (protonated Zeolite Socony Mobil-5) shows promising results in replacing fossil fuel methods for the industrial production of ET. The utility of microsized spent tea leaf powder (MSTLP) as an ethylene adsorbent has been investigated.
Other Notes
See Technical Information Bulletin AL-151 Gas Regulators: Selection, Installation, and Operation
Packaging
Supplied in a carbon steel lecture bottle with a CGA180M/CGA110F needle valve installed.
Compatible with the following:
Compatible with the following:
- Aldrich® lecture-bottle station systems
- Aldrich® lecture-bottle gas regulators
Legal Information
Aldrich is a registered trademark of Sigma-Aldrich Co. LLC
signalword
Danger
hcodes
Hazard Classifications
Flam. Gas 1 - Press. Gas Liquefied gas - STOT SE 3
target_organs
Respiratory system
Storage Class
2A - Gases
wgk
nwg
flash_point_f
-148.0 °F - closed cup
flash_point_c
-100 °C - closed cup
ppe
Eyeshields, Faceshields, Gloves, multi-purpose combination respirator cartridge (US)
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Highly active ethylene polymerization catalysts based on titanium complexes having two phenoxy-imine chelate ligands.
Ishii S-I, et al.
J. Mol. Catal. A: Chem., 179(1), 11-16 (2002)
New Pd (II)-and Ni (II)-based catalysts for polymerization of ethylene and. alpha.-olefins
Johnson LK, et al.
Journal of the American Chemical Society, 117(23), 6414-6415 (1995)
Ethylene and the regulation of plant development.
Schaller GE.
BMC Biology, 10(1), 9-9 (2012)
Spent tea leaves: A new non-conventional and low-cost biosorbent for ethylene removal.
Tzeng JH, et al.
International Biodeterioration & Biodegradation, 104, 67-73 (2015)
Hiroaki Wakayama et al.
The journal of physical chemistry. A, 111(51), 13575-13582 (2007-12-07)
The concerted and the stepwise mechanisms of the Diels-Alder reactions of butadiene with silaethylene and disilene were studied by ab initio MO methods. For the reaction of butadiene and silaethylene, an asymmetric concerted process that is almost stepwise and two
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