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Key Documents

536164

Sigma-Aldrich

Ethylene

99.99%

Sinonimo/i:

Ethene

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About This Item

Formula condensata:
CH2=CH2
Numero CAS:
Peso molecolare:
28.05
Beilstein:
1730731
Numero CE:
Numero MDL:
Codice UNSPSC:
12142100
ID PubChem:
NACRES:
NA.22

Densità del vapore

0.97 (vs air)

Livello qualitativo

Tensione di vapore

35.04 atm ( 20 °C)

Saggio

99.99%

Temp. autoaccensione

842 °F

Limite di esplosione

36 %

P. eboll.

−104 °C (lit.)

Punto di fusione

−169 °C (lit.)

Stringa SMILE

C=C

InChI

1S/C2H4/c1-2/h1-2H2
VGGSQFUCUMXWEO-UHFFFAOYSA-N

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Descrizione generale

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.

Applicazioni

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.

Confezionamento

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

Altre note

Note legali

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

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Avvertenze

Danger

Indicazioni di pericolo

Classi di pericolo

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

Organi bersaglio

Respiratory system

Codice della classe di stoccaggio

2A - Gases

Classe di pericolosità dell'acqua (WGK)

nwg

Punto d’infiammabilità (°F)

-148.0 °F - closed cup

Punto d’infiammabilità (°C)

-100 °C - closed cup

Dispositivi di protezione individuale

Eyeshields, Faceshields, Gloves, multi-purpose combination respirator cartridge (US)


Certificati d'analisi (COA)

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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
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)
Antisense gene that inhibits synthesis of the hormone ethylene in transgenic plants.
Hamilton AJ, et al.
Nature, 284-287 (1990)

Articoli

The Diels–Alder reaction is the reaction between a conjugated diene and an alkene (dienophile) to form unsaturated six-membered rings. Since the reaction involves the formation of a cyclic product via a cyclic transition state, it is also referred to as a "cycloaddition".

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