From Wikipedia, the free encyclopedia
Ethylene (IUPAC name: ethene) is a hydrocaurbon that haes the formula C
2H
4 or H2C=CH2. It is a colourless flammable gas wi a faint "sweet an musky" odour whan pure.[4] It is the semplest alkene (a hydrocaurbon wi caurbon-caurbon dooble bonds).
| |||
Names | |||
---|---|---|---|
IUPAC name
Ethene | |||
Identifiers | |||
CAS Nummer |
|||
3D model (JSmol) |
|||
ChEBI | |||
ChEMBL | |||
ChemSpider | |||
EC Nummer | 200-815-3 | ||
KEGG | |||
PubChem CID |
|||
UNII | |||
| |||
SMILES
| |||
Properties | |||
C 2H 4 | |||
Molar mass | 28.05 g/mol | ||
Appearance | colourless gas | ||
Density | 1.178 kg/m3 at 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) | ||
Solubility in watter |
3.5 mg/100 mL (17 °C);[citation needit] 2.9 mg/L[2] | ||
Solubility in ethanol | 4.22 mg/L[2] | ||
Solubility in diethyl ether | guid[2] | ||
Acidity (pKa) | 44 | ||
Magnetic susceptibility | -15.30·10−6 cm3/mol | ||
Structur | |||
Molecular shape | D2h | ||
Dipole moment |
zero | ||
Thermochemistry | |||
Staundart molar entropy S |
219.32 J·K−1·mol−1 | ||
Std enthalpy o formation ΔfH |
+52.47 kJ/mol | ||
Hazards | |||
Safety data sheet | ICSC 0475 | ||
EU clessification | F+ | ||
R-phrases | R12 R67 | ||
S-phrases | (S2) S9 S16 S33 S46 | ||
NFPA 704 |
4
2
2 | ||
Flash pynt | −136 °C (−213 °F; 137 K) | ||
Autoigneetion temperatur |
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 thair staundart state (at 25 °C [77 °F], 100 kPa). | |||
verify (whit is ?) | |||
Infobox references | |||
Ethylene is widely uised in the chemical industrie, an its warldwide production (ower 150 million tonnes in 2016[5]) exceeds that o ony other organic compoond.[6][7] Muckle o this production gaes taewart polyethylene, a widely uised plastic conteenin polymer cheens o ethylene units in various cheen lenths. Ethylene is an aw an important naitural plant hormone an is uised in agricultur tae force the ripenin o fruits.[8] Ethylene's hydrate is ethanol.
Seamless Wikipedia browsing. On steroids.
Every time you click a link to Wikipedia, Wiktionary or Wikiquote in your browser's search results, it will show the modern Wikiwand interface.
Wikiwand extension is a five stars, simple, with minimum permission required to keep your browsing private, safe and transparent.