The Hill system is a system of writing chemical formulas such that the number of carbon atoms in a molecule is indicated first, the number of hydrogen atoms next, and then the number of all other chemical elements subsequently, in alphabetical order. When the formula contains no carbon, all the elements, including hydrogen, are listed alphabetically. This deterministic system enables straightforward sorting and searching of compounds.
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Famous quotes containing the words hill and/or system:
“In the schoolyard,in the cloakrooms, the children boasted their
scars of dried snot;wrists and knees garnished with impetigo.”
—Geoffrey Hill (b. 1932)
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—William Cobbett (1762–1835)