Antistatic agents are also added to some military
jet fuels, and to
nonpolar organic solvents, to impart electrical conductivity, thus avoid buildup of static charge that could lead to sparks igniting fuel vapors. The static dissipator additive Stadis 450 is the agent added to some
distillate fuels, commercial
jet fuels, and to the military
JP-8. "Stadis" is a trademarked brand, and Stadis 450 primarily consists of
toluene,
naphtha,
dinonylnaphthylsulfonic acid, and
propanol. Stadis 425 and Dorf Ketal's SR 1795 are similar compounds, for use in distillate fuels. Statsafe products are used in non-fuel applications. Antis DF3, similar to Stadis 425, is an amber-colored liquid composed of
polyamine and polysulfone. Oil-soluble
sulfonic acids, e.g.
dodecylbenzenesulfonic acid, can be also used as part of some antistatic additives. Antistatic agents can be added to nonpolar solvents to increase their conductivity to allow electrostatic
spray painting. (Oxygenated solvents have too high conductivity to be used here.) The polysulfones can be prepared by reacting
olefins, notably
alpha-olefins, with
sulfur dioxide. The polyamines can be prepared by reacting
epichlorohydrin with aliphatic monoamines. ==See also==