molmassa diesel
Moderator: ArcherBarry
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- Berichten: 2
molmassa diesel
Hey..
Weet iemand de molmassa van diesel? Of waar je het misschien kunt vinden?
Groetjes,
Johan en rachel
Weet iemand de molmassa van diesel? Of waar je het misschien kunt vinden?
Groetjes,
Johan en rachel
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- Berichten: 677
Re: molmassa diesel
Diesel is een mengsel van vele honderden verbindingen, en is dus niet één zuivere stof. Bijgevolg kan je niet spreken van de molmassa van diesel.
- Berichten: 6.314
Re: molmassa diesel
Je kan wel een redelijk gemiddelde molmassa schatten, maar dan moet je wel meer weten van wat de samenstelling van je diesel is!
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- Berichten: 2.035
Re: molmassa diesel
Je kan wel spreken van de "gemiddelde" samenstelling van diesel, deze is ongeveer C12H26 (zie Wiki).
Dit komt dus neer op een gemiddeld MW van 170
Dat dit een grove benadering is blijkt hieruit:
"Diesel fuel is a complex mixture of normal, branched, and cyclic
alkanes (60 to > 90% by volume; hydrocarbon chain length, usually
between C9 and C30); aromatic compounds, especially alkylbenzenes
(5-40% by volume); and small amounts of alkenes (0-10% by volume)
obtained from the middle-distillate, gas-oil fraction during petroleum
separation. Benzene, toluene, ethylbenzene, and xylenes and polycyclic
aromatic hydrocarbons (PAHs), especially naphthalene and its
methyl-substituted derivatives, may be present at levels of parts per
million in diesel fuel. The sulfur content of diesel fuels depends on
the source of crude oil and the refinery process. It is regulated by
law in a number of countries and is usually between 0.05 and 0.5
weight percent. Additives are used to influence the flow, storage, and
combustion of diesel fuel, to differentiate products, and to meet
trademark specifications."
Dit komt dus neer op een gemiddeld MW van 170
Dat dit een grove benadering is blijkt hieruit:
"Diesel fuel is a complex mixture of normal, branched, and cyclic
alkanes (60 to > 90% by volume; hydrocarbon chain length, usually
between C9 and C30); aromatic compounds, especially alkylbenzenes
(5-40% by volume); and small amounts of alkenes (0-10% by volume)
obtained from the middle-distillate, gas-oil fraction during petroleum
separation. Benzene, toluene, ethylbenzene, and xylenes and polycyclic
aromatic hydrocarbons (PAHs), especially naphthalene and its
methyl-substituted derivatives, may be present at levels of parts per
million in diesel fuel. The sulfur content of diesel fuels depends on
the source of crude oil and the refinery process. It is regulated by
law in a number of countries and is usually between 0.05 and 0.5
weight percent. Additives are used to influence the flow, storage, and
combustion of diesel fuel, to differentiate products, and to meet
trademark specifications."