Chemical Property of gasoline
Chemical Property:
- Melting Point:-95.4--90.5 °C
- Boiling Point:32-210 °C
- Density:0.70-0.80 g/cm3
- Purity/Quality:
-
99.9% *data from raw suppliers
Safty Information:
- Pictogram(s):
Highly flammable, dangerous fire and explosion risk. TLV: 300 ppm; STEL 500 ppm; animal carcinogen.
- Hazard Codes:Highly flammable, dangerous fire and explosion risk. TLV: 300 ppm; STEL 500 ppm; animal carcinogen.
- MSDS Files:
-
Total 1 MSDS from other Authors
Useful:
-
Description
Known as petrol to the British and benzin to the Germans, is a mixture of C4 to Cl2 hydrocarbons. Natural gasoline obtained by fractional distillation of petroleum contains mostly saturated hydrocarbons. The ordinary commercial grades of motor gasoline contain paraffins, olefins, naphthenes, and aromatics, all in substantial concentrations. Motor gasolines are made chiefly by cracking processes in which heavier petroleum factions are converted into more volatile fractions by thermal or catalytic decomposition. Where petroleum is scarce, as in Germany, gasoline also has been made commercially by catalytic high-pressure hydrocarbons from carbon monoxide and hydrogen. Some gasolines sold in the USA contain a minor proportion of tetraethyllead, which is added in concentrations not exceeding 3 mil per gallon of motor gasoline to prevent "knock" in engines in which the gasoline is used as fuel. Commercial grades of tetraethyllead or Ethyl fluid typically contain about 63% tetraethyllead and about 35% ethylene dichloride or dibromide which aids in evacuating the products of the lead from engines. In addition, the fluid contains a red or a blue dye. All leaded gasolines are dyed for recognition and should be used only as motor fuel. Other materials occasionally blended in gasoline, particularly in Europe, to decrease knock are benzene and ethanol.
Gasoline is a highly flammable, mobile liquid with characteristic odor. Evaporates quickly and is insoluble in water, freely soluble in alcohol, ether, chloroform, and benzene; and dissolves fats, oils, and natural resins. Used as fuel in internal combustion engines ofthe spark-ignitedreciprocating type. Gasoline is a product of petroleum refining that varies in
composition and often includes additives such as antiknock
agents, antioxidants, lubricants, and detergents. Tetraethyl lead
was one of these additives, and use of leaded gasoline as fuel
was responsible for much of the human body burden of this
metal for a number of years. However, the phase out of lead
from gasoline during the past three decades (in the United
States and Europe) has led to an over 90% reduction in human
blood lead levels. More recently, other additives such as
methylcyclopentadienyl manganese tricarbonyl and methyl
t-butyl ether have been foci of concern because of possible
adverse environmental impacts of these compounds.
-
Uses
Highly flammable, dangerous fire, and
explosion risk. Eye and upper respiratory tract irritant,
and central nervous system impairment. Possible
carcinogen. The distillation ranges of gasoline are specified for the
particular application, mainly the reciprocating, spark ignition,
and internal combustion engines. To serve specific
purposes, various functional additives are blended into gasolines.
These consist of antiknock fluids, antioxidants, metal
deactivators, corrosion inhibitors, anti-icing agents, preignition
preventors, upper cylinder lubricants, dyes, and decolorizers
(161). Probably the most critical property is the
octane number, supplied with high octane hydrocarbons
and lead compounds. The major components are primarily
paraffins, olefins, naphthenes, and aromatics, and more
recently 10–40% ethyl alcohol. The distillation from
initial to final boiling point ranges from about 32 to 225℃(90
to 437°F), and the explosive limits are 1.31–6.0%. Fuel for spark-ignited internal combustion
engines
