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In a classical laboratory demonstration, heating a mixture of potassium chlorate and manganese dioxide produces oxygen gas. Manganese dioxide also catalyses the decomposition of hydrogen peroxide to oxygen and water: 2 H 2 O 2 → 2 H 2 O + O 2. Manganese dioxide decomposes above about 530 °C to manganese(III) oxide and oxygen.
Potassium chlorate is the inorganic compound with the molecular formula KClO 3. In its pure form, it is a white solid. ... typically manganese(IV) dioxide (MnO 2 ...
Manganese(II) chlorate was produced by the reaction of manganese(II) sulfate and barium chlorate. [3] The water was removed by boiling in vacuum. Then the temperature was lowered to -80°C which resulted in a pink solid. Then it was cleaned with liquid nitrogen and potassium hydroxide to remove the decomposition products. [2]
In contact with potassium nitrate (e.g. in black powder) produces potassium perchlorate and hygroscopic ammonium nitrate; no such reaction with sodium nitrate. Reacts with potassium chlorate, producing unstable, gradually decomposing ammonium chlorate; such combination has to be avoided. [1] Nitronium perchlorate
Potassium chlorate – KClO 3; Potassium chloride – KCl; Potassium chlorite – KClO 2; Potassium chromate – K 2 CrO 4; Potassium cyanide – KCN; Potassium dichromate – K 2 Cr 2 O 7; Potassium dithionite – K 2 S 2 O 4; Potassium ferrate – K 2 FeO 4; Potassium ferrioxalate – K 3 [Fe(C 2 O 4) 3] Potassium ferricyanide – K 3 [Fe(CN ...
Potassium permanganate is produced industrially from manganese dioxide, which also occurs as the mineral pyrolusite. In 2000, worldwide production was estimated at 30,000 tonnes. [36] The MnO 2 is fused with potassium hydroxide and heated in air or with another source of oxygen, like potassium nitrate or potassium chlorate. [36]
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Potassium permanganate will decompose into potassium manganate, manganese dioxide and oxygen gas: 2 KMnO 4 → K 2 MnO 4 + MnO 2 + O 2. This reaction is a laboratory method to prepare oxygen, but produces samples of potassium manganate contaminated with MnO 2. The former is soluble and the latter is not.