Citrus-scented most likely because it is citric acid based. Chromium dissolves in acidic solutions but is safe in good ole nonpolar solvents (like thinner). I use citric acid based cleaners for degreasing stuff by hand and very short soaks but for getting through heavy grease and longer soaking I use diesel fuel. I find that a little goes a long way because I can decant the diesel back into a bottle after allowing the gunk to settle out.
Not as nice to get diesel on your hands and clothes though, so it is best to use gloves.
Charlie Young
Honeybrook, PA
> In an attempt to become enviro-friendly, I purchased a bottle of citrus
> scented degreaser which I mixed with water as per instructions. In
> rebuilding my son's Dura-Ace headset, I left the parts to soak overnite
> (entirely safe with paint thinner) only to find that the chrome on the the
> top race and fixing nut was no more. Anybody else with this experience? So
> glad I did not learn this lesson with Campy parts. Rod Handsfield, Las
> Vegas 76 degrees.