Propane

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Propane
Skeletal formula o propane
Skeletal formula o propane wi aw impleecit caurbons shawn, an aw expleecit hydrogens addit
Baw an stick model o propane
Spacefill model o propane
Names
Preferred IUPAC name
Propane[1]
Seestematic IUPAC name
Tricarbane (never recommended[1])
Identifiers
3D model (JSmol)
1730718
ChEBI
ChEMBL
ChemSpider
ECHA InfoCard 100.000.753
EC Nummer 200-827-9
E nummer E944 (glazin agents, ...)
Gmelin Reference 25044
KEGG
RTECS nummer TX2275000
UNII
UN nummer 1978
Properties[2]
C3H8
Molar mass 44.10 g·mol−1
Appearance Colourless gas
Odour Odorless
Density 2.0098 kg/m3 (at 0 °C, 101.3 kPa)
Meltin pynt −187.7 °C; −305.8 °F; 85.5 K
Bylin pynt −42.25 tae −42.04 °C; −44.05 tae −43.67 °F; 230.90 tae 231.11 K
47mgL−1 (at 0 °C)
log P 2.236
Vapour pressur 853.16 kPa (at 21.1 °C (70.0 °F))
kH 15 nmol Pa−1 kg−1
Magnetic susceptibility -40.5·10−6 cm3/mol
Thermochemistry
Speceefic heat capacity, C 73.60 J K−1 mol−1
Std enthalpy o
formation
ΔfHo298
−105.2–−104.2 kJ mol−1
Std enthalpy o
combustion
ΔcHo298
−2.2197–−2.2187 MJ mol−1
Hazards
GHS pictograms The flame pictogram in the Globally Harmonized Seestem o Classification an Labelling o Chemicals (GHS)
GHS signal wird DANGER
GHS hazard statements H220
GHS precautionary statements P210
NFPA 704
Flash pynt −104 °C (−155 °F; 169 K)
470 °C (878 °F; 743 K)
Explosive leemits 2.37–9.5%
US heal exposur leemits (NIOSH):
PEL (Permissible)
TWA 1000 ppm (1800 mg/m3)[3]
REL (Recommendit)
TWA 1000 ppm (1800 mg/m3)[3]
IDLH (Immediate danger)
2100 ppm[3]
Relatit compoonds
Relatit alkanes
Relatit compoonds
Diiodohydroxypropane
Except whaur itherwise notit, data are gien for materials in thair staundart state (at 25 °C [77 °F], 100 kPa).
YesY verify (whit is YesYN ?)
Infobox references

Propane is a three-caurbon alkane wi the molecular formula C
3
H
8
, normally a gas, but compressible tae a transportable liquid. A bi-product o naitural gas processin an petroleum refinin, it is commonly uised as a fuel for ingines, oxy-gas torches, barbecues, portable stoves, an residential central heatin. Propane is ane o a group o liquefied petroleum gases. The ithers include butane, propylene, butadiene, butylene, isobutylene an mixturs thareo.

Propane containin too much propene (an aa called propylene) is nae suitit for maist vehicle fuels. HD-5 is a specification which establishes a maximum concentration o 5% propene in propane. Propane an ither LP gas specifications are established in ASTM D-1835.[5] Aw propane fuels include an odorant, almaist always ethanethiol, so that fowk can easily smell the gas in case o a leak. Propane as HD-5 wis oreeginally intendit for uise as vehicle fuel. HD-5 is currently bein uised in aw propane applications.

References[eedit | eedit soorce]

  1. 1.0 1.1 "Front Matter". Nomenclature of Organic Chemistry : IUPAC Recommendations and Preferred Names 2013 (Blue Book). Cambridge: The Royal Society of Chemistry. 2014. p. 4. doi:10.1039/9781849733069-FP001. ISBN 978-0-85404-182-4. Similarly, the retained names ‘ethane’, ‘propane’, and ‘butane’ were never replaced by systematic names ‘dicarbane’, ‘tricarbane’, and ‘tetracarbane’ as recommended for analogues of silane, ‘disilane’; phosphane, ‘triphosphane’; and sulfane, ‘tetrasulfane’. 
  2. Record o Propane in the GESTIS Substance Database frae the IFA
  3. 3.0 3.1 3.2 NIOSH Pocket Guide tae Chemical Hazards 0524
  4. GOV, NOAA Office of Response and Restoration, US. "PROPANE - CAMEO Chemicals - NOAA". cameochemicals.noaa.gov. 
  5. ASTM D-1835

Freemit airtins[eedit | eedit soorce]