While there is little likelihood
of the necessity for the use of color stabilizers in gear transmission
lubricants, information should be available if desired. In a sense, oxidation
inhibitors are color stabilizers for lubricating oils because oxidized oils
often turn dark
or black. However, what is in mind here
are compounds which may
stop or change chemical
reactions which tend to
form color bodies.
For the
purpose , Bart Maas^7
recommend the addition of 0.0001 to 0.01 per cent of an oil
soluble sodium hydrocarbyl phenate to
lubricating oils. Kalil^47 lists as color stabilizers: Certain hydroquinones, dithiocarbamates, aliphatic
amines and dicyclohexylamines.
