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Substance Formula 0 °C 10 °C 20 °C 30 °C 40 °C 50 °C 60 °C 70 °C 80 °C 90 °C 100 °C Barium acetate: Ba(C 2 H 3 O 2) 2: 58.8: 62: 72: 75: 78.5: 77: 75
potassium permanganate with antimony, very slow; Manganese Delay Composition: manganese with lead chromate and barium chromate (lead chromate is the principal oxidizer, barium chromate acts as burning rate modifier, the more of it the slower the reaction) [1] Tungsten Delay Composition: tungsten with barium chromate and potassium perchlorate [2]
The following tables list molecules that have been detected in the interstellar medium or circumstellar matter, grouped by the number of component atoms.Neutral molecules and their molecular ions are listed in separate columns; if there is no entry in the molecule column, only the ionized form has been detected.
Potassium hexacyanidoferrate(II) can be used as a fertilizer for plants. [citation needed] Prior to 1900, before the invention of the Castner process, potassium hexacyanidoferrate(II) was the most important source of alkali metal cyanides. [6] In this historical process, potassium cyanide was produced by decomposing potassium hexacyanidoferrate ...
] Potassium permanganate (KMnO 4) is most commonly used as the oxidant. In clandestine laboratories, synthesizing methcathinone using potassium permanganate is considered undesirable because of the low yields and the high toxicity of this oxidant (see Manganese toxicity ) ; however, if done in a proper laboratory using the proper procedures ...
Potassium bromate may be used in the production of malt barley, but under safety conditions prescribed by the U.S. Food and Drug Administration (FDA), including labeling standards for the finished product. [5] It is a powerful oxidizer (electrode potential = 1.5 volts, similar to potassium permanganate). [citation needed]
Specifically, the colour of a halogen, such as bromine, results from the electron transition between the highest occupied antibonding π g molecular orbital and the lowest vacant antibonding σ u molecular orbital. [36] The colour fades at low temperatures so that solid bromine at −195 °C is pale yellow. [32]
Mellitic acid may be prepared by warming mellite with ammonium carbonate, boiling off the excess of the ammonium salt, and adding ammonia to the solution. The precipitated alumina is filtered off, the filtrate evaporated, and the ammonium salt of the acid purified by recrystallization.
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