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Potassium perchlorate in crystal form. Potassium perchlorate is prepared industrially by treating an aqueous solution of sodium perchlorate with potassium chloride.This single precipitation reaction exploits the low solubility of KClO 4, which is about 1/100 as much as the solubility of NaClO 4 (209.6 g/100 mL at 25 °C).
5.1: Solid Any material which, in either concentration tested, exhibits a mean burning time less than or equal to the mean burning time of a 3:7 potassium bromate/cellulose mixture and the criteria for Packing Group I and II are not met. Group I 5.1: Liquid Any material which spontaneously ignites when mixed with cellulose in a 1:1 ratio; or
Therefore, it is often substituted at a 1:1 ratio by volume for black powder. [4] Pyrodex is similar in composition to black powder (which consists of potassium nitrate, charcoal, and sulfur) [5] but incorporates several other compounds: [6] [7] 45% potassium nitrate; 9% charcoal; 6% sulfur; 19% potassium perchlorate; 11% sodium benzoate; 6% ...
The white "special notice" area can contain several symbols. The following symbols are defined by the NFPA 704 standard. OX: Oxidizer, allows chemicals to burn without an air supply (e.g., potassium perchlorate, ammonium nitrate, hydrogen peroxide). W: Reacts with water in an unusual or dangerous manner (e.g., caesium, sodium, diborane ...
With further heating, potassium perchlorate decomposes to potassium chloride and oxygen: KClO 4 → KCl + 2 O 2. The safe performance of this reaction requires very pure reagents and careful temperature control. Molten potassium chlorate is an extremely powerful oxidizer and spontaneously reacts with many common materials such as sugar.
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The panel approved the state House map redrawn by Michigan's redistricting commission in a court-ordered remedial mapping process that included a public hearing process to solicit feedback on the ...
n.o.s. = not otherwise specified meaning a collective entry to which substances, mixtures, solutions or articles may be assigned if a) they are not mentioned by name in 3.2 Dangerous Goods List AND b) they exhibit chemical, physical and/or dangerous properties corresponding to the Class, classification code, packing group and the name and description of the n.o.s. entry [2]