Potassium perchlorate melting point

This reaction is quite vigorous, and becomes violent at temperatures above 500°C [2]. The actual decomposition mechanism may be more complex than equation 3.1 suggests. Intermediate formation of potassium perchlorate has been reported at temperatures just above the melting point, with the perchlorate then decomposing to yield potassium chloride and oxygen [5]. 

Because of its higher melting point and less-exothermic decomposition, potassium perchlorate produces mixtures that are less sensitive to heat, friction, and impact than those made withKClO] [2]. Potassium perchlorate can be used to produce colored flames (such as red when combined with strontium nitrate), noise (with aluminum, in "flash and sound" mixtures), and light (in photoflash mixtures with magnesium). 

Potassium perchlorate is a white, non-hygroscopic crystalline material with a melting point of 6101C, considerably higher than the 356°C melting point of KCIO 3 It undergoes decomposition at high temperature... 

This material is rarely used as the only oxidizer in a composition, but is commonly combined with potassium perchlorate in red flame mixtures. It is a white crystalline solid with a melting point of approximately 570°C. It is somewhat hygroscopic, so moisture should be avoided when using this material. 

Example 4. When potassium chlorate, KClOg, is carefully heated (at a temperature just above its melting point, and lower than that at which oxygen is evolved rapidly in the absence of a catalyst), potassium perchlorate, KCIO, is formed, together with potassium chloride, KCl. 1 low much potassium chloride must be taken to produce 500 g of potassium perchlorate ... 

All the halates decompose on heating, usually above their melting point. In the presence of a transition metal catalyst such as Mn02, the decomposition of KCIO3 to chloride and oxygen starts at 70 °C and is the source of pure oxygen in laboratory preparation. In a series of the halates with the same cation, the thermal stability decreases in the sequence of [lOs]" > [0103] > [Br03] . Potassium chlorate is used in the mixture of safety matches, in pyrotechnic formulations, and as intermediates in the production of perchlorates. 

Potassium perchlorate, KCIO4, is made by heating potassium chlorate just to its melting point ... 

Barium nitrate is a white, crystalline, nonhygroscopic material with a melting point of approximately 592°C. It is commonly used as the principal oxidizer in green flame compositions, gold sparklers, and in photoflash mixtures in combination with potassium perchlorate. At high reaction temperatures, barium nitrate decomposes according to... 

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