Lihat sumber bagi Asetilena

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{{chembox
| Watchedfields = changed
| verifiedrevid = 477240406
| Name = Acetylene
| ImageFile = Acetylene-CRC-IR-dimensions-2D.svg
|   ImageSize = 150px
|   ImageName = Acetylene
| ImageFile1 = Acetylene-CRC-IR-3D-balls.png
|   ImageSize1 = 150px
|   ImageName1 = Acetylene
| ImageFile2 = Acetylene-3D-vdW.png
|   ImageSize2 = 150px
|   ImageName2 = Acetylene – space-filling model
| ImageFile3 = Acetylene-xtal-3D-vdW-111.png
|   ImageSize3 = 200px
|   ImageName3 = space-filling model of solid acetylene
| IUPACName = Ethyne
| SystematicName = Ethyne<ref>[http://www.acdlabs.com/iupac/nomenclature/79/r79_53.htm Acyclic Hydrocarbons. Rule A-3. Unsaturated Compounds and Univalent Radicals], IUPAC Nomenclature of Organic Chemistry</ref>
| Section1 = {{Chembox Identifiers
|   ChemSpiderID_Ref = {{chemspidercite|correct|chemspider}}
| ChemSpiderID = 6086
| UNII_Ref = {{fdacite|correct|FDA}}
| UNII = OC7TV75O83
| KEGG_Ref = {{keggcite|correct|kegg}}
| KEGG = C01548
| InChI = 1/C2H2/c1-2/h1-2H
| InChIKey = HSFWRNGVRCDJHI-UHFFFAOYAY
| ChEMBL_Ref = {{ebicite|correct|EBI}}
| ChEMBL = 116336
| StdInChI_Ref = {{stdinchicite|correct|chemspider}}
| StdInChI = 1S/C2H2/c1-2/h1-2H
| StdInChIKey_Ref = {{stdinchicite|correct|chemspider}}
| StdInChIKey = HSFWRNGVRCDJHI-UHFFFAOYSA-N
| CASNo = 74-86-2
|    CASNo_Ref = {{cascite|correct|CAS}}
|   UNNumber = [[List of UN Numbers 1001 to 1100|1001]] (dissolved)<br />[[List of UN Numbers 3101 to 3200|3138]] (dalam campuran dengan [[etena]] dan [[propilena]])
|   ChEBI_Ref = {{ebicite|correct|EBI}}
| ChEBI = 27518
| SMILES = C#C
  }}
| Section2 = {{Chembox Properties
|   C=2|H=2
|   Density = 1.097 g/L = 1.097 kg/m<sup>3</sup>
|   SublimationConditions = −84 °C; −119 °F; 189 K (1 atm)
|   MeltingPtC = −80.8
|   Melting_notes = [[Triple point]] at 1.27 atm
|   Triple_point K=192.3
|   Triple_point kPa=0.1274
|  critical point K=308,.9
|  critical point MPa=6.138
|   Solubility = slightly soluble
|   pKa = 25<ref>[http://encyclopedia.airliquide.com/Encyclopedia.asp?GasID=1#MajorApplications], Gas Encyclopaedia, Air Liquide</ref>
|   VaporPressure = 44.2 atm (20°C)<ref name=NIOSH>{{PGCH|0008}}</ref>
  }}
| Section3 = {{Chembox Structure
| MolShape = [[Linear (chemistry)|Linear]]
  }}
| Section4 = {{Chembox Thermochemistry
|   DeltaHf =  +226.88 kJ/mol
|   Entropy = 201&nbsp;J·mol<sup>−1</sup>·K<sup>−1</sup>
 }}
| Section7 = {{Chembox Hazards
|   EUClass =
|   EUIndex =
|   MainHazards =
|   NFPA-H = 1
|   NFPA-F = 4
|   NFPA-R = 3
|   NFPA-O =
|   AutoignitionPtC = 300
|   ExpoLimits = 2.5-100%<ref name=NIOSH/>
|   PEL = none<ref name=NIOSH/>
|   REL = C 2500 ppm (2662 mg/m<sup>3</sup>)<ref name=NIOSH/>
|   IDLH = N.D.<ref name=NIOSH/> 
  }}
}}
'''Asetilena''' ([[tatanama kimia|nama sistematik]]: '''etuna''') ialah [[sebatian kimia]] dengan formula C<sub>2</sub>H<sub>2</sub>. Sebatian ini merupakan [[hidrokarbon]] dan merupakan [[alkuna]] teringkas.<ref>R.H.Petrucci, W.S.Harwood dan F.G.Herring "General Chemistry", edisi ke-8. (Prentice-Hall 2002), hlm. 1072</ref> Gas tanpa warna ini digunakan secara meluas sebagai bahan bakar dan sebagai bongkah binaan kimia. Sebatian ini adalah tidak stabil dalam bentuk tulen dan lalu dikendalikan sebagai larutan.<ref name=Ullmann/> Asetilena tulen adalah tanpa bau, tetapi gred-gred komersial biasanya mempunyai bau bertanda oleh sebab bendasin.<ref name=msds>Compressed Gas Association (1995) [http://www.stoodyind.com/safety/msds/Acetylene.pdf Material Safety and Data Sheet – Acetylene].</ref>

Sebagai alkuna, asetilena adalah [[penepuan (kimia)|tidak tepu]] oleh sebab dua atom karbonnya [[ikatan kimia|terikat]] bersama-sama dalam satu [[ikatan ganda tiga]]. Ikatan ganda tiga karbon–karbon menempatkan keempat-empat atom pada garis lurus sama, dengan sudut-sudut ikatan CCH sebanyak 180°. Oleh sebab asetilena merupakan [[simetri molekul|molekul bersimetri]] lurus, sebatian ini memiliki [[simetri molekul#Kumpulan titik|kumpulan titik]] D<sub>∞h</sub>.<ref>{{Housecroft3rd|pages=94–95}}</ref>

==Rujukan==
{{Reflist|33em}}

==Pautan luar==
{{Wikiquote|Acetylene}}
* [http://pureacetylenegenerator.com Loji Pembentukan Asetilena dan Proses Terperinci] {{en}}
* [http://jchemed.chem.wisc.edu/JCESoft/CCA/CCA5/MAIN/1ORGANIC/ORG07/MENU.HTM Asetilena di Chemistry Comes Alive!] {{en}}
* {{Gutenberg|name=Acetylene, the Principles of Its Generation and Use|no=8144}}
* [http://www.youtube.com/watch?v=KXh7__ri1VQ Filem yang menjelaskan pembentukan asetilena daripada kalsium karbida dan had-had bahan letupan yang membentuk bahan bahaya mudah bakar] {{en}}
* [http://www.periodicvideos.com/videos/mv_calcium_carbide.htm Kalsium Karbida & Asetilena] di ''[[The Periodic Table of Videos]]'' (Universiti Nottingham) {{en}}
* [http://www.cdc.gov/niosh/npg/npgd0008.html CDC - NIOSH Pocket Guide to Chemical Hazards - Acetylene] {{en}}

{{Alkuna}}

[[Kategori:Gas]]