Naphthenic acid by a general formula CH O, where "n" indicates the carbon number and "z" specifies a homologous series. The "z" is equal to 0 for saturated, acyclic acids and increases to 2 in monocyclic naphthenic acids, to 4 in bicyclic naphthenic acids, to 6 in tricyclic acids, and to 8 in tetracyclic acids. Salts of naphthenic acids, called naphthenates, are widely used as hydrophobic sources of metal ions in diverse applications.Aluminium salts of naphthenic acid and palmitic acid were combined during World War II to produce napalm. The word "napalm" is derived from the words naphthenic acid and palmitic acid.
Proper name (philosophy) Proper name (philosophy) In the philosophy of language a proper name, for example the names of persons or places, is a name which is ordinarily taken to uniquely identify its referent in the world. As such it presents particular challenges for theories of meaning and it has become a central problem in analytical philosophy. The common sense view was originally formulated by John Stuart Mill in "A System of Logic" where he defines it as "a word that answers the purpose of showing what thing it is that we are talking about but not of telling anything about it". This