I have no idea just what sodium citrate is but my first guess would be a mild acid. That + case colors = adios color.
Like was said before, mixing up home brews of ots products can be problematic to the point of deadly. I'm sure you had something special in mind but well .......... I'm trying to be nice so please don't do that any more.
If you want to strip any laq and most enamels simple acetone will do that w/out harming anything. Carb cleaner is not something I've ever considered sticking gun parts in - or will. If you have some monster ugly deposits the military bore cleaner will knock free anything I've seen.
But then, you are all free to innovate any way you care to. Your guns, your life, have fun
and have a day
Dr.WtS
