Aqueous Solution Of Potassium Research Articles

Jejunal Ulceration

SINCE the report of Baker et al 1 in November 1964, physicians have been alert to the possibility of patients receiving potassium therapy developing small-bowel ulcerations. Nearly all reports have emphasized the role of enteric-coated potassium chloride as the cause of such lesions. This has made many physicians believe that aqueous solutions of potassium may be given without the danger of such a complication. Therefore, it seems appropriate to report our experience with a patient who developed an acute obstructing ulcer of the jejunum while receiving potassium gluconate (Kaon Elixir). Report of a Case A 67-year-old chronic alcoholic, very obese, white woman was admitted to the hospital on the evening of Jan 5, 1966, because of nausea, vomiting, epigastric pain, cough, dyspnea, and nervousness. Her alcohol and weight problem began at least 30 years previously. Roentgenographic studies in the past had demonstrated a diverticulum of the duodenum, a small hiatal

Viscoelasticity in aqueous soap solutions. Part 4.—Effect of alcohols

Measurements have been made of the viscoelastic properties of some gels formed by adding electrolytes and long-chain alcohols to aqueous solutions of potassium and ammonium oleate. Hexanol, decanol and tetradecanol tend to decrease the viscoelasticity; octadecanol and docosanol tend to increase it. The results have been explained in terms of the formation of secondary micelles containing both soap and alcohol molecules. An estimate is made of their size on the basis of the kinetic theory of rubberlike elasticity.

Synthesis of organofluorosilanes

1. A method was developed for the synthesis of organofluorosilanes RnSiF4-n from the corresponding organo-chlorosilanes and potassium or ammonium hydrogen difluoride. By the method fourteen alkyl-, cycloalkyl-, and arylalkyl-fluorosilanes were obtained in 80–90% yield; three of these were previously unknown. When treated with KHF2 or NH4HF2, trichlorophenylsilane loses its phenyl group in the form of benzene. 2. Trialkylchlorosilanes can be converted into the corresponding fluoro derivatives in 50–60% yield by reaction with saturated aqueous solutions of potassium or ammonium fluorides or hydrogen difluorides. 3. Schemes are proposed for the mechanisms of the reactions studied. 4. A preparative method was developed for the synthesis of trialkylchlorosilanes by the reaction of the corresponding trialkylsilanes with titanium or tin tetrachoride.

Über niobsäuren und wasserlösliche alkaliniobate—I lichtabsorptions- und diffusionsmessungen an alkaliniobatlösungen

U.V.-spectrophotometric studies with aqueous solutions of potassium and sodium niobates within the pH-region 5–14 results in an appearance of three different spectra; thus the existence of three individual types of polyniobate is probable. From diffusion measurements it is shown, that in strong alkaline solutions of potassium niobate (pH 11–14)anionic weights of nearly 1000 predominate, whereas in less alkaline solutions (pH < 9) a high polymer species with roughly a threefold weight exists.

Isotonic Solutions. II. The Chemical Potential of Water in Aqueous Solutions of Potassium and Sodium Phosphates and Arsenates at 25°

Isotonic Solutions. II. The Chemical Potential of Water in Aqueous Solutions of Potassium and Sodium Phosphates and Arsenates at 25°

Wettability of Solid Surface. IV. Wettability of Palmitic Acid Surface towards Aqueous Salt Solutions

Abstract Wettabilities of purified paraffin, crude paraffin, palmitic acid and cetyl alcohol are measured towards aqueous solutions of potassium, calcium, aluminum and thorium salts. It is pointed out that palmitic acid surface becomes remarkably wettable by the contact with aqueous solution of thorium or aluminum salt even in the extreme dilution. Such an increase in wettability can neither be explained simply by ζ-potential change of the palmitic acid surface in those solutions nor overturning of the molecule in surface layer. Alternative explanations are suggested.

The Diffusion of One-tenth Molar Hydrochloric Acid through Aqueous Solutions of Potassium, Sodium, and Lithium Chlorides

The Diffusion of One-tenth Molar Hydrochloric Acid through Aqueous Solutions of Potassium, Sodium, and Lithium Chlorides