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Merck
CN

536164

乙烯

99.99%

别名:

Ethene

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线性分子式:
CH2=CH2
化学文摘社编号:
分子量:
28.05
UNSPSC Code:
12142100
NACRES:
NA.22
PubChem Substance ID:
EC Number:
200-815-3
Beilstein/REAXYS Number:
1730731
MDL number:
Assay:
99.99%
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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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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.

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.

Packaging

Supplied in a carbon steel lecture bottle with a CGA180M/CGA110F needle valve installed.

Compatible with the following:
  • Aldrich® lecture-bottle station systems
  • Aldrich® lecture-bottle gas regulators

Other Notes

Legal Information

Aldrich is a registered trademark of Sigma-Aldrich Co. LLC

signalword

Danger

Hazard Classifications

Flam. Gas 1 - Press. Gas Liquefied gas - STOT SE 3

target_organs

Respiratory system

存储类别

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)

法规信息

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历史批次信息供参考:

分析证书(COA)

Lot/Batch Number

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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)
Ethylene formation by catalytic dehydration of ethanol with industrial considerations.
Fan D, et al.
Materials, 6(1), 101-115 (2012)
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
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)

商品

The Diels–Alder reaction is the reaction between a conjugated diene and an alkene (dienophile) to form unsaturated six-membered rings. It is also referred to as a cycloaddition.

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