Chlorates and perchlorates burn at the hottest temperature along the whole length of the flame in a ratio 83:17 with shellac. Barium chlorate often contains one molecule of crystal water, 5.5% by weight, so to get the optimal ratio you should first heat the barium chlorate carefully in an oven at 120oC to get rid of the crystal water. Then you mix with shellac and moist it with alcohol. The composition makes the most beautiful green Bengal illumination that you have ever seen.