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Potassium fluoride is prepared by reacting potassium carbonate with hydrofluoric acid. Evaporation of the solution forms crystals of potassium bifluoride. The bifluoride on heating yields potassium fluoride: K 2 CO 3 + 4 HF → 2 KHF 2 + CO 2 ↑ + H 2 O KHF 2 → KF + HF ↑. Platinum or heat resistant plastic containers are often used for ...
potassium persulfate: 7727–21–1 K 2 Se: potassium selenide: 1312–74–9 K 2 SiF 6: potassium hexafluorosilicate: 16871–90–2 K 2 SiO 4: potassium silicate: 10006–28–7 K 2 Te: potassium telluride: 12142–40–4 K 2 TeO 3: potassium tellurite: 15571–91–2 K 2 TiF 6: potassium hexafluorotitanate: 16919–27–0 K 2 ZrF 6 ...
This is a list of prices of chemical elements. Listed here are mainly average market prices for bulk trade of commodities. Listed here are mainly average market prices for bulk trade of commodities. Data on elements' abundance in Earth's crust is added for comparison.
If HF alone is electrolyzed, hydrogen forms at the cathode (positive part of the cell) and the fluoride ions remain in solution. After electrolysis, potassium fluoride remains in solution. [35] 2 HF 2 − → H 2 ↑ + F 2 ↑ + 2 F −. The modern version of the process uses steel containers as cathodes, while blocks of carbon are used as anodes.
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
The mass ratio of the solvent and potassium fluoride is 1.1~2.0 : 0.5~1. When the reaction temperature of 100~160 °C is reached, methyl chloroacetate ClCH 2 CO 2 CH 3 is continuously added in the reactor at a speed of 5~10 kg/min with the mass ratio of methyl chloroacetate and potassium fluoride being 1:0.5～1. The reaction between these ...
The use of the cryptand to sequester the potassium ions avoids ion-pairing between free potassium and fluoride ions, rendering the fluoride anion more reactive. Intermediate 2 is treated with the protected mannose triflate (1); the fluoride anion displaces the triflate leaving group in an S N 2 reaction, giving the protected fluorinated ...
F 3 NO 2 S: difluoroaminosulfonyl fluoride: 13709-30-3 F 3 NO 3 S: difluoraminooxysulfonyl fluoride: 6816-12-2 F 3 NS: thiazyl trifluoride: 15930-75-3 F 3 NaSn: sodium trifluorostannate: 13782-22-4 F 3 Nd: neodymium trifluoride: 13709-42-7 F 3 OP: phosphoryl fluoride: 13478-20-1 F 3 OTa: tantalum monoxide trifluoride: 20263-47-2 F 3 OV ...