Showing papers on "Isopropyl alcohol published in 1970"

Hemodialysis for isopropyl alcohol poisoning.

Abstract: To the Editor:— A 70% solution of isopropyl alcohol (isopropanol), rubbing alcohol, is readily available as a potential source of poisoning; however, reported intoxications with this compound are not common A case of isopropyl alcohol intoxication was successfully treated by means of hemodialysis So far as we know, the isopropyl alcohol blood level in this patient was higher than that in any case previously reported This report should emphasize the life-saving potential of hemodialysis for severe isopropyl alcohol poisonings Report of a Case— A 28-year-old white man was admitted to the Indianapolis Veterans Administration Hospital at 8:00 PM on April 7, 1968 Forty-five minutes prior to admission, the patient was observed to have ingested approximately 1 liter of rubbing alcohol over a ten-minute period Physical examination revealed a blood pressure of 60/40 mm Hg, a pulse rate of 70 beats per minute, and a rectal temperature of 97 F (361 C)

Hydride transfer reactions catalysed by rhodium–tin complexes

Abstract: Rhodium–tin chloride complexes catalyse the dehydrogenation of isopropyl alcohol to acetone and also hydrogen–deuterium exchange between the α-CH and the hydroxy-group of isopropyl alcohol. Reactions (1) and (2) explain some features of the dehydrogenation and the results of the hydrogen–deuterium exchange can be explained if the hydrogen of the rhodium hydride intermediate exchanges with protons from the solvent. Me2CH·OH +[RhIIICl]⇌ Me2CO +[RhIIIH]+ HCl (1), [RhIIIH]+ HCl →[RhCl]III+ H2(2)

The reaction of diphenylmethylene with isopropyl alcohol and oxygen: the question of reversibility of singlet–triplet interconversion of carbenes

Abstract: The dependence on added isopropyl alcohol concentration of the proportions of products formed by thermal decomposition of the diphenyldiazomethane in acetonitrile is consistent with reversible interconversion of the singlet and triplet states of the intermediate diphenylmethylene.

Method of determining acid and water in oil

Abstract: A method of measuring water in used oils, comprising the steps of placing a measured volume of a test solution into a first container, the first container being of a known volume when filled to overflow; placing a measured volume of test solution into (2 pouring the measured volume of (98 the first container into the second container; filling the first container to overflow with the oil being tested; pouring the measured volume of oil from the first container into the second container, the second container being of a volume large enough to accommodate the measured volumes of test solutions and oil, shaking the second container, introducing an additional measured volume of oil being tested into the second container so that the resultant solution separates into two phases to indicate the percentage by volume of water in the oil. The test solution in one container is a neutralizer solution including an alkali such as sodium hydroxide or potassium hydroxide, an alcohol such as ethyl alcohol, isopropyl alcohol or methyl alcohol and a small amount of water. The test solution in the other container is an indicator solution including an aromatic hydrocarbon such as benzene or toluene, an alcohol such as ethyl alcohol, isopropyl alcohol or methyl alcohol, and an indicator such as phenol red, phenolphthalein, cresol red, bromthymol blue, congo red, chlorophenol red or orange I. The percentage of aromatic hydrocarbon by volume in the indicator solution is about two percent (2 percent) to about ninety-eight percent (98 percent) of the combined volume of aromatic hydrocarbon, alcohol and indicator.

Disintegration of charged liquid jets: results with isopropyl alcohol.

Abstract: Disintegration processes occurring with charged jets of isopropyl alcohol differ in several respects from results obtained with water. Although bimodal distributions of drop size shift to smaller diameters with increasing electrification for both liquids, the lower surface tension of the alcohol promotes the formation of secondary jets and a fan configuration not observed for water.

Selective reductions of steroid carbonyl groups with homogeneous catalysts containing iridium and rhodium

Abstract: Steroid 2-, 3-, and 17-ketones can be reduced selectively with isopropyl alcohol, trimethyl phosphite, and sodium chloroiridate or tris(triphenylphosphine)-rhodium(I) chloride; stereospecific 2- and 3-reduction to the axial alcohol is best attained with the rhodium catalyst.

Surfactant-containing soldering fluxes

Abstract: A WATER SOLUBLE SOLDERING FLUX SUBSTANTIALLY FREE OF HALIDE IONS COMPRISING ORGANIC SOLVENTS AND A CATIONIC FLUOROCARBON AS AN ACTIVATOR/SURFACTANT/CORROSION INHIBITTOR. A TYPICAL FORMATION COMPRISES ETHYLENE GLYCOL, GLYCERINE, ISOPROPYL ALCOHOL, AND THE CATIONIC FLUOROCARBON SURFACTANT/ACTIVATOR.

Fuel and oil additive

Abstract: A fuel and oil additive comprising a composition of matter containing napthalene, camphor, toluene, benzyl alcohol, and gasoline. The composition may additionally contain a small amount of a lower alcohol such as isopropyl alcohol or ethyl alcohol.

The Kinetics of the Chromic Acid Oxidation of Phenylphosphonous Acid

Abstract: The kinetics of the oxidation of phenylphosphonous acid by chromic acid has been investigated. The rate at which gross concentration of chromium (VI) disappears follows a first order law. The rate increased with the increase of hydrogen ion concentration. The activation energy of the reaction was found to be 7.4 kcal. The effect of pyridine on the reaction rate confirmed the findings of Westheimer who showed that pyridine catalyzes the oxidation of isopropyl alcohol. It is suggested that the oxidation appears to proceed through the initial formation of an intermediate compound between the active form of phenylphosphonous acid with chromic acid which finally decomposes slowly by the rate determining step. The inactive form is finally oxidized by chromium(V) by very fast step.

Aqueous Developer Compositions

Abstract: 1,189,944. Developing photo-polymerizable materials. E.I. DU PONT DE NEMOURS & CO. Jan.16, 1968, No.2392/68. Addition to 1,148,362. Heading G2C. An aqueous developer for exposed photopolymerizable layers comprises crater, 1-50% by volume of at least one organic solvent selected from 2-butoxyethanol, diacetone alcohol and ethyl acetate based on the volume of the developer and at least one water-soluble organic or inorganic base material, the pH being 8-13. The base material may be an alkali metal phosphate buffer, borax, sodium hydroxide, carbonate or bicarbonate or ammonium hydroxide. In the examples, a photo-polymerizable layer containing penta-erythritol triacrylate, a methyl methacrylate/methacrylic acid copolymer and an anthraquinone initiator is overcoated with a polyvinyl alcohol layer, imagewise exposed and developed with an aqueous solution containing sodium or ammonium hydroxide, trisodium or sodium dihydrogen phosphate, sodium hexametaphosphate, sodium carbonate or an organic amine as alkali and 2-(butoxy or ethoxy) ethanol, acetone, diacetone alcohol, ethyl acetate or methanol, ethanol or isopropyl alcohol as organic solvent. The developer may also contain a surfactant, polyethylene glycol, a sequestering agent or potassium bichromate.

Preparation of carboxyalkyl derivatives of polygalactomannans

Abstract: CARBOXYALKYL ETHERS OF POLYGALACTOMANNANS ARE PREPARED BY FORMING AN ALCOHOL-WATER SLURRY THEREOF ALONG WITH A HALO FATTY ACID REACTANT AND AN ALKALI METAL HYDROXIDE. THE ALCOHOL IS A MONOHYDRIC ALCOHOL OF 2 TO 4 CARBON ATOMS, PREFERABLY ISOPROPYL ALCOHOL. THE PRODUCTS ARE USEFUL AS THICKENING AGENTS WHEN COMPLEXED WITH CALCIUM IONS.

Irradiation of terephthalophenone in isopropyl alcohol

Abstract: Irradiation of terephthalophenone in isopropyl alcohol gave a bright yellow-colored intermediate which decayed rather rapidly. The products were complex and depended upon the mode of irradiation. They ranged from a mixed polymer I to a dimer II. I consisted of about 5 terephthalophenone units capped with hydrogen or isopropyl alcohol radicals or terminated by cyclization. II, the dimer, was capped by hydrogen atoms.

Equilibration in photochemical systems. The photolysis of a mixture of α-diketones in isopropyl alcohol

Abstract: The photoreduction of mixtures of camphorquinone and tetramethyltetralindione in isopropyl alcohol is independent of initial excitation, on account of equilibration of intermediate semidione radicals.

A process for the manufacture of dispersible granulates

Abstract: 1,216,349. Granulated animal feed supplements. L. P. TORT. 21 Dec., 1967 [21 Dec., 1966; 19 Dec., 1967], No. 58199/67. Headings A2B and A2E. [Also in Division A5] Granulates suitable for administration to animals in drinking liquid are made as follows: (a) reducing to a ground mixture a raw material containing at least one active therapeutic and/or nutritive ingredient normally adversely affected by the influence of light, air or atmospheric agents; (b) mixing and homogenizing the ground mixture; (c) wetting the homogenized raw material with an organic solvent containing dissolved polyvinyl pyrrolidone, n-lowryl sulphates, dioctyl sodium sulphasuccinates, alginates and/or polyethylene glycols, whereby to form a paste; (d) granulating the paste; (e) removing the solvent from the dry granules; and (f) sieving the dry granules to separate fine materials. Materials: minerals, vitamins, amino acids, antibiotics and hormones. Solvents: methanol, ethanol, isopropanol, acetone, benzene, dioctane and toluol. Granulation may be effected through a 20 mesh sieve. Final sieving is through a 16 mesh sieve. The Examples are directed to making granulates from formulations composed of: (1) specified vitamins, glucose, monosodium glutamate, sorbic acid, yellow dye, polyvinyl pyrrolidone and isopropyl alcohol; (2) specified vitamins, copper sulphate, cobalt sulphate, magnesium citrate, magnesium glycero phosphate, iron saccharate, sodium selenite, zinc chloride, glucose, glutannic acid, sorbic acid, polyvinyl pyrrolidone and isopropyl alcohol; (4) 1-(4-amino-2n-propyl-5- pyridy methyl)- 2 - pyrroline, sulphadimethylpyrimidine, Vitamin K, magnesium sulphate, dextrose, polyvinyl pyrrolidone and organic solvent; and (5) phenothiazine, piperazine citrate, magnesium sulphate, polyvinyl pyrrolidone and organic solvent.

Process for the production of polyvinylcycloalkanes

Abstract: 1,212,558. Polyvinylcycloalkanes. INSTITUT NEFTEKHIMICHESKOGO SINTEZA IM.. A. V. TOPCHIEVA. 15 July, 1968 [17 July, 1967], No. 33645/68. Heading C3P. Polyvinylcycloalkanes, e.g. polyvinylcyclohexane, are made by polymerizing a vinylcycloalkane in propane as solvent and using as catalyst a mixture of a salt of a transition metal of Groups IV-VIII of the Mendeleef's modern Periodic System and an organic compound of a metal of Groups I-III, under a pressure not lower than 5 atmospheres. The exemplified catalyst is a mixture of Al(i-C 4 H 9 ) 3 and TiCl 4 Polymerization may be stopped by addition of isopropyl alcohol.

Production of Alcohols and Catalyst therefor

Abstract: 1,192,692. Making alcohols. TOKUYAMA SODA K.K. 6 March, 1968, No. 10995/68. Heading C2C. At least one aliphatic or cycloaliphatic olefin having 2-8 C is hydrated using water or steam at 100-300‹ C. to yield the corresponding alcohol in the presence of a solid acid catalyst containing Zr : W : O = 1 : 2-8 : 0A5-3A5. Specified olefins are ethylene, propylene, butene- 1, butene-2, isobutene, pentane, hexene, heptene, octene and cyclohexene. The type of alcohol produced will depend on the location of the double bond, e.g. propylene will yield isopropyl alcohol, butene-2 and octene-1 yielding secondary alcohols. Examples describe the preparation of ethyl and isopropyl alcohols.

Kinetics of hydrogen isotope exchange reactions. Part XVIII. Aliphatic exchange induced by β-radiation on aqueous solutions of alcohols

Abstract: A pcH-independent β-radiation-induced hydrogen exchange reaction has been observed for aqueous solutions of t-butyl alcohol containing greater than 8 Ci/l of tritium as part of the solvent. Repeated gas-chromatographic separations of t-butyl alcohol isolated from these solutions lead to the conclusion that the tritiated species is t-butyl alcohol with tritium in the methyl groups. The amount of exchange is proportional to radiation dose, and increases with increasing concentration of substrate, apparently towards a limiting maximum rate.Comparable exchange reactions are observed with isopropyl alcohol and cyclohexanol.

Kinetics of oxidation of isopropyl alcohol, sorbitol, diglycollic acids and tetra hydrofura by V5+

Abstract: The kinetics of oxidation of isopropyl alcohol, sorbitol, diglycollic acid and tetranydrofuran have been investigated in aqueous sulphuric acid (≤2 M). the total order of the reaction is found to be 2 for all the redox systems. The rate of oxidation increases with [ H+], [HSO4 -] and μ. The nature of the probable active species has been discussed and a plausible reaction scheme suggested. The various rate parameters have also been evaluated.

Poly-n-oxides and their production

Abstract: A poly-N-oxide is an oxidation product of an imidamine of formula where R1- 4 are H, halogen, hydrocarbon, -CN, -COOH, -CONH2, -COOR, -OR or -OCOR, where R is a C1- 4 alkyl group; A is a bivalent radical, R5 and R6 are alkyl or aryl radicals or form part of a carbocyclic or heterocyclic ring, and n and m are integers whose sum is 50-10,000. The polymeric imidamines may be prepared from polymers (and copolymers) of maleic anhydride (with styrene or isobutylene) with amines containing at least one primary and at least one tertiary amino group. In examples: (1) a polymeric imidamine of formula where x is 170, is oxidized in glacial acetic acid with hydrogen peroxide; (2) polymeric imidamines of formulae where x is 400, are oxidized as in (1). (3) the polymer of (1) is oxidized in solution in isopropyl alcohol or dioxan. The poly-N-oxide may be recovered from the above glacial acetic acid solution by precipitation by the addition of sulphuric acid and the aq. solution of the precipitate may be purified by dialysis with tap water.

A new reaction of the CCl3 group in polychlorohydrocarbons

Abstract: 1. α,α,α,ω-Tetrachloro- andα,α,α-trichloroalkanes are capable of addition to olefins through rupture of the C-Cl bond in the CCl3 group during which 40–55% yields are formed of adducts with the structure RCHClCH2CCl2 (CH2)nX (X=H or Cl). The reaction takes place in propanol at 135° in the presence of 1.5 mole% of Fe(CO)5. The addition of 1,1,1,3-tetrachloropropane has also been accomplished under the same conditions, but in methanol or ethanol. 2. Isopropyl and benzyl alcohols reduce the CCl3 group in polychloroalkanes to a CHCl2 group. The reaction takes place in the presence of catalytic quantities of Fe(CO)5 at 145° with a yield of 50–65%. 3. In the addition and reduction reactions of polychloroalkanes investigated, which were carried out in isopropyl alcohol, the latter undergoes various transformations with the formation of propylene, isopropyl chloride, diisopropyl ether, and acetone.