Potassium bicarbonate hydroxide

An aqueous slurry of 6 parts of 17/3-hydroxy-17a -methyl-1-oxo-1,2-seco-A-nor-5a -androstan-2-oic acid in 200 parts of water is made alkaline to pH 10 by the addition of dilute aqueous sodium hydroxide, then is treated with 6 parts of sodium borohydride. This mixture is allowed to react at room temperature for about 3 hours. Benzene is added and the resulting mixture is acidified carefully with dilute hydrochloric acid. The benzene layer is separated, and the aqueous layer is further extracted with benzene. The combined benzene extracts are washed successively with aqueous potassium bicarbonate and water, dried over anhydrous sodium sulfate, then evaporated to dryness in vacuo. The resulting residue is triturated with ether to afford pure 17/3-hydroxy-17a -methyl-2-oxa-5a -androstan-3-one,... 

Nitronium tetrafluoroborate. Acetonitrile, Ammonium carbonate. Potassium carbonate. Diethyl ether, Acetone, Ethyl acetate. Butanol Sulfamic acid, Potassium hydroxide. Ethanol, Nitric acid, Sulfuric acid, Acetone, Isopropyl alcohol Dioxane, Potassium nitrite. Potassium bicarbonate, Tetranitromethane Lead acetate, Sodium azide Sodium azide, Lead acetate. Water... 

Potassium Bicarbonate. Potassium bicarbonate, KHC03, is made by absorption of C02 in a carbonate solution, ie, potassium hydroxide is carbonated to K CC, which in turn is carbonated to KHCO,. The changes of solubility during carbonation are presented in Figure 7. Usually the carbonate is crystallized, washed, and redissolved before carbonation and crystallization of the bicarbonate. The solutions can also be filtered. Thus, the purest carbonate is made by calcining the bicarbonate. Potassium bicarbonate is more stable than NaHC03 at normal temperatures, but KHC03... 

Other physical phenomena that may be associated, at least partially, with complex formation are the effect of a salt on the viscosity of aqueous solutions of a sugar and the effect of carbohydrates on the electrical conductivity of aqueous solutions of electrolytes. Measurements have been made of the increase in viscosity of aqueous sucrose solutions caused by the presence of potassium acetate, potassium chloride, potassium oxalate, and the potassium and calcium salt of 5-oxo-2-pyrrolidinecarboxylic acid.81 Potassium acetate has a greater effect than potassium chloride, and calcium ion is more effective than potassium ion. Conductivities of 0.01-0.05 N aqueous solutions of potassium chloride, sodium chloride, potassium sulfate, sodium sulfate, sodium carbonate, potassium bicarbonate, potassium hydroxide, and sodium hydroxide, ammonium hydroxide, and calcium sulfate, in both the presence and absence of sucrose, have been determined by Selix.88 At a sucrose concentration of 15° Brix (15.9 g. of sucrose/100 ml. of solution), an increase of 1° Brix in sucrose causes a 4% decrease in conductivity. Landt and Bodea88 studied dilute aqueous solutions of potassium chloride, sodium chloride, barium chloride, and tetra-... 

Aminopenicillanic acid (2.16 g) is dissolved in 20 ml of a one molar aqueous solution of potassium bicarbonate and 10 ml of acetone. The resultant solution is cooled in an ice-water bath and to it is added with stirring a solution of 2.7 g of alpha-methoxy-3,4-dichloro-phenylacetyl chloride in 10 ml of acetone. The pH is adjusted to 7-8 and upon completion of the addition the reaction medium is stirred for 15 min at ice bath temperature and then for 2.5 h at room temperature, maintaining the pH range between 7 and 8. The solution is extracted once with ether and then adjusted to pH 2.5 with 20% phosphoric acid. The acidic solution is extracted once with 30 ml of butyl acetate and again with 10 ml of butyl acetate. These combined butyl acetate extracts are thereafter successively washed twice with water and reextracted at pH 7 with 0.5 N aqueous potassium hydroxide solution. The aqueous layer is washed twice with ether and the remaining organic solvent is then removed by evaporation under reduced pressure. The washed aqueous layer is then lyophilized and the residue thus obtained taken up in acetone. The crystal line product is collected by filtration and dried to yield the potassium salt of 6-(a-methoxy-3,4-dichlorophenylacetamido)penicillanic acid. Upon treatment with mineral acid of an aqueous solution of the compound so prepared, there is obtained the free acid, 6-(a-methoxy-3,4-dichlorophenylacetamido)penicillanic acid. 

Potassium Uranyl Carbonate, K4U02(C03)a, may be prepared by the action of carbon dioxide on potassium uranyl cyanide, or by evaporating at moderate temperature a solution containing potassium bicarbonate and potassium uranate. It crystallises in small hexagonal prisms, which are stable in dry air and dissolve in cold water without decomposition. The solution is hydrolysed on warming, and the addition of alkali causes j recipitation of uranyl hydroxide. 

Compounds used as antacids are sodium bicarbonate potassium bicarbonate calcium carbonate aluminium hydroxide magnesium salts... 

A calculation of the relative detector signals shows that the conversion of carbonic acid to potassium bicarbonate and then to potassium hydroxide in the enhancement columns is essentially quantitative. In particular, it may seem surprising that an acid as weak as carbonic acid (k] a = 4.0 X 10 ) is able to exchange its H+ for on the resin. 

Subphase buffers at pH 9-11 and 0.1 to 0.2 ionic strength were prepared with sodium or potassium bicarbonate-carbonate mixtures (8, 26). Subphase buffers at pH 8-11 were prepared by adding 0.01M tris to 0.1M or 1.0M sodium chloride and adjusting the pH with concentrated hydrochloric acid or concentrated sodium hydroxide. Another alkaline subphase contained 0.1 N sodium hydroxide (pH 12.7). The acid subphase contained 0.01N hydrochloric acid and 0.1M sodium chloride (pH 2.1). All subphases contained 0.1mM EDTA. 

Contact with ammonia, strong acids may cause sensitization, which can lead to explosions. Mixtures with hydrocarbons and other combustible materials may cause fire and explosions. Incompatible with bases, metal oxides, hydroxides, potassium hydride, sodium bicarbonate, potassium bicarbonate. Attacks some plastics, rubber, and coatings. 

Most of the potassium carbonate made in the United States is produced beginning with potassium chloride (KC1) obtained from seven mines in New Mexico, Michigan, and Utah. The potassium chloride is first converted to potassium hydroxide (KOH) by electrolysis. The potassium hydroxide is then treated with carbon dioxide (C02) to obtain potassium bicarbonate (KHC03). Finally, the potassium bicarbonate is decomposed by heating, yielding water, carbon dioxide, and potassium carbonate. 

Polycarbonates Polyethylene Polymethyl Methacrylate Polypropylene Polysiloxane Polystyrene Polyurethane Polyvinyl Chloride Potassium Bicarbonate Potassium Bisulfate Potassium Bitartrate Potassium Hydroxide Propane Propylene Pyridoxine... 

Calcium Carbonate Calcium Phosphate Calcium Silicate Calcium Sulfate Copper(II) Sulfate Magnesium Chloride Magnesium Silicate Hydroxide Magnesium Sulfate Mercury(II) Sulfide Monosodium Glutamate Perchlorates Potassium Bicarbonate Potassium Bisulfate Potassium Bitartrate Potassium Carbonate Potassium Chloride Potassium Fluoride Potassium Iodide Potassium Nitrate Potassium Sulfate Silver Iodide Silver Nitrate Silver(I) Sulfide Sodium Acetate... 

After 2 hours or less, solid potassium permanganate should start to crystallize out. This effect will be manifest by an apparent sharp drop in the current efficiency as found by titration, After 2 hours, shut off the current temporarily, remove the anode and clean it (it will be found to be coated with manganese dioxide), and restore the alkalinity of the solution by adding 1 mole of solid potassium hydroxide for each faraday of electricity passed. If this is not done, potassium bicarbonate will crystallize along with the permanganate. 

Ammonium bicarbonate Caicium carbonate Caicium monocarbonate Caicium oxide Magnesium hydroxide Magnesium oxide Potassium bicarbonate Potassium carbonate Potassium hydroxide Sodium bicarbonate Sodium carbonate alkali, pharmaceuticals Ammonia Calcium carbonate Sodium borate decahydrate... 

Guanidine carbonate Hydrochloric acid Isobutyric acid Isopropylamine Lactic acid Lithium hydroxide Magnesium carbonate hydroxide Magnesium hydroxide Magnesium oxide Maleic acid Metaphosphoric acid Mixed isopropanolamines Pentasodium triphosphate Phosphoric acid Potassium bicarbonate... 

Polydextrose Potassium acid tartrate Potassium bicarbonate Potassium hydroxide Propylene glycol... 

Potassium bicarbonate Potassium bisulfate Potassium bromate Potassium carbonate Potassium hydroxide... 

Aqueous alkali or basic medium is generally used as the catalyst for the preparation of epoxy resins. Useful base compounds include alkali and alkaline earth metal bicarbonates, carbonates, hydroxides or hydrides or alkoxides. A few of such compounds are sodium carbonate (Na2C03), potassium carbonate (K2CO3), lithium carbonate (Li2C03), calcium carbonate (CaC03), sodium hydroxide (NaOH), potassium hydroxide (KOH), lithium hydroxide (LiOH), calcium hydroxide (Cao.sOH), sodium bicarbonate (NaHC03), potassium bicarbonate (KHCO3), lithium bicarbonate... 

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