Grades of Ethanol
Ethanol is available in a range of purities that result from its production or, in the case of denatured alcohol, are introduced intentionally.
Read more about this topic: Ethanol Purification
Famous quotes containing the words grades of and/or grades:
“He suggested that there might be men of genius in the lowest grades of life, however permanently humble and illiterate, who take their own view always, or do not pretend to see at all; who are as bottomless even as Walden Pond was thought to be, though they may be dark and muddy.”
—Henry David Thoreau (1817–1862)
“Kindliness seems to exist primarily as an animal instinct, so deeply rooted that mental degeneracy, which works from the top down, does not destroy it until the mind sinks to the lower grades of idiocy.”
—Charles Horton Cooley (1864–1929)