Fuel Dye in The European Union
After August 2002, all European Union countries became obliged to add about 6 mg/L of Solvent Yellow 124, a dye with structure similar to Solvent Yellow 56, to all motor diesel fuel. This dye can be easily hydrolyzed with acids, splitting off the acetal group responsible for its solubility in nonpolar solvents, and yielding a water-soluble form. Like a similar methyl orange dye, it changes colour to red in acidic pH. It can be easily detected in the fuel at levels as low as 0.3 ppm by extraction to a diluted hydrochloric acid, allowing detection of the red diesel added into motor diesel in amounts as low as 2-3%.
Read more about this topic: Fuel Dyes
Famous quotes containing the words fuel, dye, european and/or union:
“Beware the/easy griefs, that fool and fuel nothing./It is too easy to cry “AFRIKA!”/and shock thy street,/and purse thy mouth,/and go home to thy “Gunsmoke,” to/thy “Gilligan’s Island” and the NFL.”
—Gwendolyn Brooks (b. 1917)
“It will help me nothing
To plead mine innocence, for that dye is on me
Which makes my whit’st part black.”
—William Shakespeare (1564–1616)
“Americans want action for their money. They are fascinated by its self-reproducing qualities if it’s put to work.... Gold-hoarding goes against the American grain; it fits in better with European pessimism than with America’s traditional optimism.”
—Paula Nelson (b. 1945)
“The old ideals are dead as nails—nothing there. It seems to me there remains only this perfect union with a woman—sort of ultimate marriage—and there isn’t anything else.”
—D.H. (David Herbert)