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.
Stinkpot (weapon) Stinkpot (weapon) A stinkpot or stink-pot was an incendiary and suffocating weapon used in the 19th century during the Qing Dynasty, especially in naval operations. It is an earthenware incendiary weapon part filled with sulphur, gunpowder, nails, and shot, while the other part was filled with noxious materials designed to emanate a highly unpleasant and suffocating smell to its enemies when ignited. British Admiral Sir William Robert Kennedy recorded the use of the stinkpot in 1856 during the Second Opium War in his book "Hurrah for the Life of a Sailor - Fifty Years in the Royal Navy". He described