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Etana adalah sebatian kimia dengan formula kimia C2H6. Ia adalah dua-karbon alkana, yang mana merupakan satu alifatik hidrokarbon. Pada suhu dan tekanan piawai, etana adalah gas yang tidak berwarna dan tidak berbau.
Etana | ||||
---|---|---|---|---|
Umum | ||||
Nama sistematik | Etena | |||
Formula molekul | C2H6 | |||
SMILES | C=C | |||
Jisim molar | 28.05 g/mol | |||
Rupabentuk | Gas tidak berwarna | |||
nombor CAS | [74-85-1] | |||
Ciri-ciri | ||||
Ketumpatan dan fasa | 1.178 g/l pada 15C, gas | |||
Kelarutan dalam air | Tidak larut | |||
Takat beku | −169.1 °C | |||
Takat didih | −103.7 °C | |||
Struktur | ||||
Bentuk molekul | planar | |||
Dipole moment | sifar | |||
Kumpulsn Simetri | D2h | |||
Data Termodinamik | ||||
Entalpi piawai bagi formasi ΔfH°gas |
+52.47 kJ/mol | |||
Entropi molar piawai S°gas |
219.32 J·K−1·mol−1 | |||
Bahaya | ||||
MSDS | MSDS Luaran | |||
EU classification | Very flammable (F+) | |||
NFPA 704 |
| |||
R-phrases | R12, R67 | |||
S-phrases | S2, S9, S16, S33, S46 | |||
Flash point | Flammable gas | |||
Explosive limits | 2.7–36.0% | |||
Autoignition temperature | 490 °C | |||
Supplementary data page | ||||
Structure and properties |
n, εr, etc. | |||
Thermodynamic data |
Phase behaviour Solid, liquid, gas | |||
Spectral data | UV, IR, NMR, MS | |||
Related compounds | ||||
Other alkanes | propana butana | |||
Related compounds | etena etyna | |||
Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) Infobox disclaimer and references | ||||
Wikimedia Commons mempunyai media berkaitan: Etana. |
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