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Ethylene

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Ethylene
Names
IUPAC name
Ethene
Identifiers
3D model (JSmol)
ChEBI
ChEMBL
ChemSpider
EC Nummer 200-815-3
KEGG
UNII
Properties
C
2
H
4
Molar mass 28.05 g/mol
Appearance colourless gas
Density 1.178 kg/m3at 15 °C, gas[1]
Meltin pynt −169.2 °C (−272.6 °F; 104.0 K)
Bylin pynt −103.7 °C (−154.7 °F; 169.5 K)
3.5 mg/100 mL (17 °C);[citation needit]2.9 mg/L[2]
Solubilityinethanol 4.22 mg/L[2]
Solubilityindiethyl ether guid[2]
Acidity(pKa) 44
Magnetic susceptibility -15.30·10−6cm3/mol
Structur
Molecular shape D2h
zero
Thermochemistry
Staundart molar
entropy
So298
219.32 J·K−1·mol−1
Std enthalpy o
formation
ΔfHo298
+52.47 kJ/mol
Hazards
Safety data sheet ICSC 0475
EU clessification FlammableF+
R-phrases R12R67
S-phrases (S2)S9S16S33S46
NFPA 704
NFPA 704 four-colored diamondFlammability code 4: Will rapidly or completely vaporize at normal atmospheric pressur an temperatur, or is readily dispersed in air an will burn readily. Flash pynt ablo 23 °C (73 °F). E.g., propaneHealth code 2: Intense or continued but nae chronic exposure could cause temporary incapacitation or possible residual injury. E.g., chloroformReactivity code 2: Unnergangs violent chemical chynge at elevatit temperatures an pressurs, reacts violently wi water, or mey form explosive mixturs wi watter. E.g., phosphorusSpecial hazards (white): no code
4
2
2
Flash pynt −136 °C (−213 °F; 137 K)
542.8 °C (1,009.0 °F; 815.9 K)
Relatit compoonds
Relatit compoonds
Ethane
Acetylene
Propene
Except whaur itherwise notit, data are gien for materials in thairstaundart state(at 25 °C [77 °F], 100 kPa).
YesYverify(whit isYesYN?)
Infobox references

Ethylene(IUPACname:ethene) is ahydrocaurbonthat haes the formulaC
2
H
4
or H2C=CH2.It is a colourless flammable gas wi a faint "sweet anmusky"odour whan pure.[4]It is the semplestalkene(a hydrocaurbon wicaurbon-caurbondooble bonds).

Ethylene is widely uised in the chemical industrie, an its warldwide production (ower 150 milliontonnesin 2016[5]) exceeds that o ony otherorganic compoond.[6][7]Muckle o this production gaes taewartpolyethylene,a widely uisedplasticconteeninpolymercheens o ethylene units in various cheen lenths. Ethylene is an aw an important naituralplant hormonean is uised in agricultur tae force the ripenin o fruits.[8]Ethylene'shydrateisethanol.

References

[eedit|eedit soorce]
  1. Record oEthylenein the GESTIS Substance Database frae theIFA,accessed on 25 October 2007
  2. abcNeiland, O. Ya. (1990)Органическая химия: Учебник для хим. спец. вузов.Moscow. Vysshaya Shkola. p. 128.
  3. ETHYLENE | CAMEO Chemicals | NOAA.Cameochemicals.noaa.gov. Retrieved on 2016-04-24.
  4. Zimmermann, Heinz; Walz, Roland (2008). "Ethylene".Ullmann's Encyclopedia of Industrial Chemistry.Weinheim: Wiley-VCH.doi:10.1002/14356007.a10_045.pub3.ISBN978-3527306732.
  5. Research and Markets."The Ethylene Technology Report 2016 - Research and Markets".www.researchandmarkets.com.Retrieved19 Juin2016.
  6. "Production: Growth is the Norm".Chemical and Engineering News.84(28): 59–236. 10 Julie 2006.doi:10.1021/cen-v084n034.p059.
  7. "Propylene Production from Methanol".Intratec. 31 Mey 2012.ISBN978-0-615-64811-8.
  8. Wang K, Li H, Ecker J; Li; Ecker (2002)."Ethylene Biosynthesis and Signaling Networks".Plant Cell.14(Suppl): S131–51.doi:10.1105/tpc.001768.PMC151252.PMID12045274.CS1 maint: multiple names: authors leet (link)