Commercial accelerators are a solvent base (usually n-heptane or acetone) with an active ingredient, fairly often at quite low concentration. The solvent, by itself, does not work! I have seen MSDS sheets that mentioned chemicals such as tolidine and various quinones as active ingredients. The chemicals themselves are not readily available to the average person. One trick I have learned is that the amount of "active ingredient" in the accelerator is far more than is needed to "kick" CA. If you know what the main solvent is for the accelerator you use (check MSDS sheet), it is often possible to dilute the accelerator by as much as 4:1 and still be as effective. If you have access to the appropriate solvent, it makes the stuff a lot less expensive to use.

Ross