After thorough mixing,
potassium carbonate (10 mol%) was added to the mixture.
Potassium carbonate (0.55 g, 4 mmol), 5-methoxyresorcinol (0.14 g, 1 mmol), and 4-fluorobenzophenone (0.50 g, 2.5 mmol) were added to a 50 mL three-necked round-bottomed flask that equipped with a magnetic stirrer, a thermometer, a Dean-Stark trap fitted with a condenser and an argon inlet and outlet.
For the first time
potassium carbonate is employed as a pore-forming agent and from the results it is concluded that both
potassium carbonate and sodium bicarbonate are better pore forming agents.
(a) First stage of melting: In the first stage of melting,
potassium carbonate in the oxide form (K2O) was gradually reduced while sodium carbonate in the form of (Na2O) is gradually reduced at the same rate.
Prices for an installation service and a 25kg pack of auxiliary substance (
potassium carbonate) are set at 50,000 yen ($423) and 18,000 yen ($150), respectively.
The team created the ylide (benzoylmethylene) triphenylphosphorane by ball-milling (phenacyl) triphenylphosphonium bromide with anhydrous
potassium carbonate ([K.sub.2]C[O.sub.3]), a base.
The different gases given off by burning blackpowder include carbon dioxide and hydrogen sulfide, and produced salts or compounds include
potassium carbonate, potassium sulfate and potassium monosulfide.
In the first bank of centrifuges,
potassium carbonate is added to the water to raise the density of the solution to 1.2 g/cc.
It was hypothesized that the application of the fertilizer chemicals (Urea, Potassium Nitrate, and
Potassium Carbonate) would actually stunt the growth of the crayfish over a period of two weeks.
This is a well-known reaction by which potassium cyanide slowly converts to
potassium carbonate and releases hydrogen cyanide gas into the air.
They injected the chemical sodium dithionite--diluted in water and buffered with
potassium carbonate and potassium bicarbonate--into a well for about 10 hours.