Potassium acetate bicarbonate

Tetrakis(tripheiiylphosphine)palladium(0) is often used for this reaction. However, Pd(II) complexes such as bis(triphenylphosphine)palladium dichloride or palladium acetate are also commonly employed for convenience, as they are stable in ah. The base is typically a secondary or tertiary amine such as triethy-lamine. Weak bases such as sodium (potassium) acetate, bicarbonate, or carbonate are also used. 

Potassium triplex (potassium acetate, bicarbonate, citrate) Oral rarely used... 

A solution of 17-cyanoandrosta-5,16-dien-3jS-ol acetate (46 g) and anhydrous potassium acetate (0.46 g) in methylene dichloride (310 ml) is treated with a mixture of 40% peracetic acid (37 ml) and anhydrous potassium acetate (1.84 g) in methylene dichloride (46 ml), the temperature of the solution being maintained below 25°. The mixture is stored at room temperature for 4 hr and then washed successively with water, 5% sodium bicarbonate solution (aqueous sodium bisulfite, 10g/150g water, has been used to decompose excess reagent before workup) and water until neutral. Evaporation of the dried solution and addition of ether gives 24.1 g of 5oc,6a-epoxy-17-cyanoandrost-16-en-3 -ol acetate mp 187-190°. One recrystallization from methanol gives 20.4 g of oxirane melting at 191-194°. 

Fig. 8. Preparative isolation of hexon antigen of EDS-76 by hydrophobic-interaction chromatography on Butyl-PG column (2x5 cm) (A) application of the allantoic fluid diluted (1 5) by 50 mM potassium acetate, pH 4,130 ml (B)0.01 mol/1 potassium acetate, pH 5.5 (C) 0.01 mol/1 potassium bicarbonate pH 8.0, 10% isopropanol (D) 0.01 mol/1 potassium carbonate pH 9.6, 10% isopropanol. EDS-0 — components of alantoic fluid eluted with buffer A, EDS-1 — desorbed hexon fraction eluted with buffer C, EDS-2 — fraction desorbed with buffer D [56]...

Platinum Dichloride Platinum Dioxide Platinum Hexafluoride Platinum Monoxide Platinum Tetrachloride Plutonium Polonium Potassium Potassium Acetate Potassium Bicarbonate Potassium Bisulfide Potassium Borohydride Potassium Bromate Potassium Bromide Potassium Carbonate... 

Normal adult concentration of serum potassium is 3.5 mmol to 5.0 mmol or mEq per liter, with 4.5 mmol or mEq often used as a reference point 1 g of potassium acetate provides 10.26 mEq of potassium 1 g of potassium bicarbonate provides 10 mEq of potassium 1 g of potassium chloride provides 13.41 mEq of potassium 1 g of potassium citrate provides 9.26 mEq of potassium 1 g of potassium gluconate provides 4.27 mEq of potassium... 

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-... 

A solution in 500 c.cs. water is made from 110 gms. potassium acetate, 26 gms. potassium carbonate and 28 gms. potassium bicarbonate, and poured into a lead cell or glass beaker, which need contain no anode chamber. The beaker should be placed in a basin of cold water, and the cathode should take the form of a thin lead pipe, with a copper connection soldered to it, wound in the form of a coil, and placed close to the inner walls of the beaker. Through this pipe a supply of cold water is run, so that the temperature is maintained at 25°—30° during the electrolysis. The anode is of platinum, and should be so arranged that it can be rotated. The current density is 20—25 amperes per sq. dcm., and the E.M.F. 7—8 volts. 

Potassammonium, 152, 385 Potassium, acetate, 56 bicarbonate, 376 carbonate, 226 chlorate, 250... 

Pentasodium triphosphate Potassium acetate Potassium acid tartrate Potassium alum anhydrous Potassium bicarbonate Potassium bisulfate Potassium carbonate Potassium chloride Potassium citrate Potassium diacetate... 

Potassium hydroxide, like its sodium counterpart, is a versatile intermediate in the production of chemicals. Because KOH is more expensive, NaOH dominates in large-scale uses, and potassium chemicals are largely restricted to specialty markets. They are often more soluble and more reactive than the corresponding sodium chemicals, and this fact is responsible for many of their applications. Widely used derivatives include acetate, bicarbonate, bromide, cyanide, ferrocyanide, oxalate, permanganate, and phosphate. The derivative with the greatest market probably is potassium carbonate, which is discussed in Section 7.5.2.2A. 

Alkali metal bicarbonate Eutectic mixture sodium acetate/ lithium acetate/potassium acetate Thickening agent Abrasive Surfactant Water... 

Potassium Acetate Potassium Acid Sulfate Potassium Acid Tartrate Potassium Antimonate Potassium Bicarbonate Potassium Bichromate Potassium Bisulfate Potassium Bisulfite Potassium Bitartrate Potassium Borate Potassium Bromate Potassium Bromide Potassium Carbonate Potassium Chlorate Potassium Chloride Potassium Chromate Potassium Cyanide Potassium Dichromate Potassium Ferricyanide Potassium Ferrocyanide Potassium Fluoride Potassium Hexacyanoferrate (III) Potassium Hydrogen Carbonate Potassium Hydrogen Sulfate Potassium Hydrogen Sulfite Potassium Hydroxide Potassium Hypochlorite Potassium Hyposulfite Potassium lodate Potassium Iodide Potassium Manganate Potassium Nitrate Potassium Perborate Potassium Perchlorate Potassium Permanganate Potassium Peroxydisulfate Potassium Persulfate... 

A concentrated solution of monochloroacetic acid is neutralised with sodium bicarbonate, and then heated with potassium cyanide, whereby sodium cyano-acetate is obtained ... 

Benzenetetrol. 1,2,3,5-Tetrahydroxybenzene (64) forms needles (mp 165°C) from water. The compound is easily soluble ia water, alcohol, and ethyl acetate and is iasoluble ia chloroform and benzene. In aqueous potassium bicarbonate solution sparged with carbon dioxide,... 

The crude ketal from the Birch reduction is dissolved in a mixture of 700 ml ethyl acetate, 1260 ml absolute ethanol and 31.5 ml water. To this solution is added 198 ml of 0.01 Mp-toluenesulfonic acid in absolute ethanol. (Methanol cannot be substituted for the ethanol nor can denatured ethanol containing methanol be used. In the presence of methanol, the diethyl ketal forms the mixed methyl ethyl ketal at C-17 and this mixed ketal hydrolyzes at a much slower rate than does the diethyl ketal.) The mixture is stirred at room temperature under nitrogen for 10 min and 56 ml of 10% potassium bicarbonate solution is added to neutralize the toluenesulfonic acid. The organic solvents are removed in a rotary vacuum evaporator and water is added as the organic solvents distill. When all of the organic solvents have been distilled, the granular precipitate of 1,4-dihydroestrone 3- methyl ether is collected on a filter and washed well with cold water. The solid is sucked dry and is dissolved in 800 ml of methyl ethyl ketone. To this solution is added 1600 ml of 1 1 methanol-water mixture and the resulting mixture is cooled in an ice bath for 1 hr. The solid is collected, rinsed with cold methanol-water (1 1), air-dried, and finally dried in a vacuum oven at 60° yield, 71.5 g (81 % based on estrone methyl ether actually carried into the Birch reduction as the ketal) mp 139-141°, reported mp 141-141.5°. The material has an enol ether assay of 99%, a residual aromatics content of 0.6% and a 19-norandrost-5(10)-ene-3,17-dione content of 0.5% (from hydrolysis of the 3-enol ether). It contains less than 0.1 % of 17-ol and only a trace of ketal formed by addition of ethanol to the 3-enol ether. 

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