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The reaction that produced the color changes that Glauber observed in his solution of potassium permanganate and potassium manganate (K 2 MnO 4) is now known as the "chemical chameleon". [66] This report represents the first description of the production of potassium permanganate. [ 67 ]
As 99.9% pure thorium oxide, price per thorium contained. Free on Board port of entry, duty paid. 91: Pa: Protactinium: 15.37: 1.4×10 −6 [i] (3.878 × 10 10 kg) No reliable price available. In 1959–1961 Great Britain Atomic Energy Authority produced 125 g of 99.9% pure protactinium at a cost of $ 500 000, giving the cost of 4 000 000 USD ...
Potassium permanganate is an oxidizing agent. [5] The British National Formulary recommends that each 100 mg be dissolved in a liter of water before use. [3] Potassium permanganate was first made in the 1600s and came into common medical use at least as early as the 1800s. [6] It is on the World Health Organization's List of Essential Medicines ...
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.
Television ratings — and now a new poll — clearly illustrate the phenomenon. Election news on CNN and MSNBC was taking up too much of Sam Gude's time before the election, said the 47-year-old ...
potassium permanganate has a molar mass of 158.034(1) g mol −1, and reacts with five moles of electrons per mole of potassium permanganate, so its equivalent weight is 158.034(1) g mol −1 /5 eq mol −1 = 31.6068(3) g eq −1. Historically, the equivalent weights of the elements were often determined by studying their reactions with oxygen.
On Jan. 20, United We Dream, the nation’s largest immigrant youth-led network, plans to reopen the hotline they launched during Trump's first term as president, said Anabel Mendoza, the ...
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