The thermal behavior Of Sucrose, KClO3, KCIO4, and KCIO3 + sucrose and KCIO4 + sucrose mixtures was studied experimentally using differential thermal analysis (DTA) and thermogravimetry (TG). The mixtures (KCIO3 or KCIO4 with sucrose) are sometimes used as pyrotechnic mixtures in military activities. The results demonstrate that the ignition temperatures for KCIO3 and KCIO4 are 472 and 592 ° C, respectively. On the other hand, DTA-TG of pure Sucrose indicates that this compound decomposes at 180 ° C before it initiates. Also, when KCIO3 is replaced by KCIO4 as oxidizer of the fuel, sucrose, the sensitivity of the mixture decreases. In addition, the ignition temperature for a mixture of KCIO3 and sucrose can be as low as 180 ° C. However, replacing KCIO3 with KCIO4 elevates the ignition temperature of the mixture by at least 200 to ∼ 410° C, which is a safe temperature for preventing activation of the mixture by accidental factors Such as static electricity. © 2005 The Combustion Institute. Published by Elsevier Inc. All rights reserved.