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This formula was presented in a seminar by Jim Freeman at FPAGs 4F 2002. The formula bound with regular water is a typical perchlorate blue. However, when potassium dichromate is dissolved in the water used to bind the stars, the blue becomes deeper with a brighter flame envelope compareable to a chlorate blue. The idea is to catalyze the KClO4 with the dichromate ion. The amount of dichromate to dissolve should be calculated such that the amount of water used deliveres 1% dichromate by weight. Making the dichromate concentration stronger will not effect the performance, so you dont have to be exact. The amount given for PVC can be varied a bit, and other chlorine donors can be substituted such as Saran, chlororub, hcb etc.
