Ethanol

(Redirected from Ethanol fuel)
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Ethanol
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Template:Chembox Elements/molecular formula
Molar mass Template:Chem molar mass
Appearance Colorless liquid
Density 0.7893 g/cm3 (at 20 °C)[2]
Melting point Template:Chembox CalcTemperatures
Boiling point Template:Chembox CalcTemperatures
log P −0.18
Vapor pressure 5.95 kPa (at 20 °C)
Acidity (pKa) 15.9 (H2O), 29.8 (DMSO)[3][4]
1.3611[2]
Viscosity 1.2 mPa·s (at 20 °C), 1.074 mPa·s (at 25 °C)[5]
1.69 D[6]
Hazards
NFPA 704
3
2
0
 
Flash point 14 °C (Absolute)
U.S. Permissible
exposure limit (PEL)
TWA 1000 ppm (1900 mg/m3) [7]
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Ethanol, also known as ethyl alcohol, grain alcohol or just alcohol, is a flammable, colorless chemical compound. Drinks with 0.5% or more ethanol are called alcoholic. When people talk about it, they often name it simply as alcohol. Its chemical formula is C2H5OH, also written as C2H6O. It is used as a solvent because it can dissolve many other chemicals and is not very toxic. Yeast makes most of the ethanol that people use.

Ethanol fuel

Ethanol fuel can be used instead of gasoline in cars and other engines. Engines can use pure ethanol or ethanol mixed with gasoline.

In Brazil, ethanol fuel made from sugar cane provides 18 percent of the country's fuel for cars. Because of this, Brazil does not have to buy oil from other countries.[8] To do this, Brazil cut down much of the rain forests to grow more sugar cane, which is then fermented into Ethanol.

Most cars in the U.S. can run on fuels that have of up to 10% ethanol in them. Car makers like Ford, DaimlerChrysler, and GM also make vehicles specifically designed to run on higher ethanol blends. Some of their engines can run on up to 85% ethanol (E85). By mid-2006, there were about six million E85-compatible vehicles on U.S. roads.[9]

References

  1. "Ethanol – Compound Summary". The PubChem Project. USA: National Center for Biotechnology Information.
  2. 2.0 2.1 2.2 2.3 Template:RubberBible92nd
  3. Ballinger P, Long FA (1960). "Acid Ionization Constants of Alcohols. II. Acidities of Some Substituted Methanols and Related Compounds1,2". Journal of the American Chemical Society 82 (4): 795–798. doi:10.1021/ja01489a008. 
  4. Arnett EM, Venkatasubramaniam KG (1983). "Thermochemical acidities in three superbase systems". J. Org. Chem. 48 (10): 1569–1578. doi:10.1021/jo00158a001. 
  5. Template:Cite book
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  7. Template:PGCH
  8. America and Brazil Intersect on Ethanol
  9. American energy: The renewable path to energy security

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