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  • 1
    Electronic Resource
    Electronic Resource
    Complexes of metal ions with phosphorus or arsenic containing ligands. I. Complexes of Orthocarboxyphenyl Tertiary Arsines with zinc(II) and cadmium(II) (1968)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 363 (1968), S. 207-212 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Es wurden Zn- und Cd-Komplexe mit den Liganden o-Carboxyphenyl-dimethylarsin, o-Carboxyphenyl-diphenylarsin und o-Carboxyphenyl-di(p-tolyl)-arsin dargestellt. Cd ergibt mit allen drei Liganden polymere, offenbar oktaedrische Komplexe der allgemeinen Zusammensetzung M(OOC·C6H4·AsR2)2, während dies beim Zink nur bei den beiden beiden letzteren Liganden der Fall ist. Mit dem Dimethylarsin bildet Zink einen Komplex Zn(OOC·C6H4)·AsMe2·Me2As·C6 H4COOH mit Fünferkoordination.
    Notes: The complexes of zinc(II) and cadmium(II) have been prepared with the ligands o-carboxyphenyldimethylarsine, o-carboxyphenyldiphenylarsine and o-carboxyphenyldi(p-tolyl) arsine. The complexes of cadmium(II) with all the ligands and that of zinc(II) with the latter two have been assigned the general formula M(OOC·C6H4·AsR2)2 and appear to be octahedral due to their polymeric nature. Zinc(II) forms complex, Zn(OOC·C6H4·AsMe2)2·Me2 As·C6H4COOH, with the first ligand which is pentacoordinated.
    Additional Material: 3 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19683630315
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  • 2
    Electronic Resource
    Electronic Resource
    Effect of temperature on the spin-lattice relaxation times of aqueous solutions of ribonuclease and human serum albuminWork supported in part by the U. S. Atomic Energy Commission. (1965)
    New York : Wiley-Blackwell
    Biopolymers 3 (1965), S. 585-590 
    Details
    ISSN: 0006-3525
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Aqueous solutions of ribonuclease and human serum albumin were subjected to periods of controlled heating and the nuclear magnetic spin-lattice relaxation times, T1, of the water protons measured. The heat treatment causes an initial increase in the relaxation times of the water protons. These T1 variations indicate that a configurational change, compatible with a disordering of the protein structure occurs, which involves an increase in various modes of internal mobility. The T1 measurements also indicate a close, ordered association of the water molecules and the protein.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/bip.1965.360030509
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  • 3
    Electronic Resource
    Electronic Resource
    Molecular weight changes during polyolefin autoxidation (1968)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 12 (1968), S. 2033-2038 
    Details
    ISSN: 0021-8995
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Expressions were derived relating changes of intrinsic viscosity to reaction time, based on a scheme previously presented for the uncatalyzed, uninhibited thermal oxidation of polyolefins. A value of the kinetic parameter A may be obtained from these expressions by using an iterative type of procedure and employing data presented by other workers for the oxidation of atactic polybutene-1. This value of A was compared with the corresponding value obtained by the authors from rate of carbonyl formation studies in oxidation of atactic polybutene-1 by means of infrared absorption spectroscopy methods. The good agreement between the values of A obtained from the two different experimental techniques employed lends further support to the validity of the scheme used and the expressions derived therefrom.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/app.1968.070120905
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  • 4
    Electronic Resource
    Electronic Resource
    Changes in acid soluble nucleotide components of candida utilis during the cell cycle (1969)
    New York, NY [u.a.] : Wiley-Blackwell
    Biotechnology and Bioengineering 11 (1969), S. 1089-1098 
    Details
    ISSN: 0006-3592
    Keywords: Chemistry ; Biochemistry and Biotechnology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Acid soluble extracts obtained at 30 min intervals from cells of C. utilis growing in synchrony in a phased culture (cycle time 51/2 hr) were fractionated on a Dowex-1-formate column. The series of fractionation profiles showed changes in number and amounts of components over the cell cycle. Transient accumulations of numerous components over the complex pool were observed. The significance of the changes are discussed in relation to practical applications and cell metabolism.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/bit.260110605
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  • 5
    Electronic Resource
    Electronic Resource
    Continuous phased culture - A technique for growing, analyzing, and using microbial cellsIssued as N.R.C. No. 10941. (1969)
    New York, NY [u.a.] : Wiley-Blackwell
    Biotechnology and Bioengineering 11 (1969), S. 843-851 
    Details
    ISSN: 0006-3592
    Keywords: Chemistry ; Biochemistry and Biotechnology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Continuous phased growth produces a culture in which most of the cells in the population are in the same stage of their development. The cell, thereby amplified by the size of the synchronous population, may be examined in the phased culture at any desired growth rate. Changes taking place in the cell after the cell cycle, i.e., post-cycle changes, may be examined by a modification of the procedure. Further systematic applications of the method permit a rational approach to problems of cell growth and metabolism.The phasing technique recognizes the cells as the fundamental unit for experimental investigation, and offers a great potential in the analysis of the cell throughout its cycle, a relatively unexploited field in cell physiology and fermentation. Experiments with yeasts and bacteria illustrate some of the applications and progress made so far.
    Additional Material: 7 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/bit.260110510
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  • 6
    Electronic Resource
    Electronic Resource
    Inhibierung der Korrosion von Kupfer in Natriumhydroxidlösungen (1966)
    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 17 (1966), S. 870-875 
    Details
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: Inhibition of copper corrosion in sodium hydroxide solutionsThe authors have investigated the effect of 30 organic substances on the corrosion of copper in aqueous NaOH solutions (0.2, 0.5 and 1.0 n). The following substances were found to be effective inhibitors: resorcin, phloroglucin, pyragallol, tanni, β-naphthom, m and p-aminophenol, glucose, furfural, cyclohexanon, 8-oxychinolin, hydrazine sulphate, chinalizarine, hydrochinon, sodium diethyldithiocarbamate, sodium rhodizonate, gallocyanine and acriflavine. In most cases, the inhibition effect is due to a covering layer of reaction products of metal, inhibitor and hydroxide. The decisive factor is the stability of the covering layer with the different lye concentrations.
    Notes: Die Verfasser untersuchten die Wirkung von 30 organischen Substanzen auf die Korrosion von Kupfer in wäßrigen NaOH-Lösungen (0,2, 0,5, und 1,0 n). Als gute Inhibitoren erweisen sich Resorcin, Phologluchin, Pyrogallol, Tannin, β-Naphthol, m- und p-Animophenol, Glucose, Fufurol, Cyclohexanon, 8-Oxychinolin, Hydrazinsulfat, Chinalizarin, Hydrochinon, Natriumdiäthyldithiocarbanmat, rhodiozonsaures Natrium, Gallocynin und Acriflavin. Die Hemmwirkung beruht in den meisten Fällen auf Deckschicht-Bildung aus Reaktionsprodukten von Metall, Inhibitor und Hydroxid. Entscheidend ist die Stabilität der Deckschicht bei den verschiedenen Laugenkonzentrationen.
    Additional Material: 1 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/maco.19660171006
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  • 7
    Electronic Resource
    Electronic Resource
    Inhibierung der Korrosion von Kupfer in salzsauren Lösungen (1967)
    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 18 (1967), S. 8-11 
    Details
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: Inhibition of copper corrosion in hydrochloric solutionsFurfural is one of the best corrosion inhibitors of copper in hydrochloric acid. The inhibition effect ranges from 90 to 100 per cent. With increasing acid concentration, the quantity of furfural required for effective corrosion inhibition becomes smaller. By means of polarisation measurements, it can be found that, in 0.2 n and 1.0 n HCl, the inhibitor has an essential anodic effect and the cathode becomes depolarised whilst, in 2.0 n and 3.0 n HCl, the anodic zone is virtually unchanged and there is a considerable polarisation in the cathodic zone. The protective effect of furfural is probably due to its resin forming capacity.
    Notes: Furfurol ist einer der besten Inhibitoren der Korrosion von Kupfer in Salzsäure; die Hemmwirkung liegt zwischen 90 und 100%. Mit steigender Säurekonzentration wird die zur wirksamen Hemmung der Korrosion erforderliche Furfurolmenge geringer. Mit Hilfe von Polarisationsmessungen läßt sich feststellen, daß in 0,2 n- und 1,0 n-HCl der Inhibitor im wesentlichen anodisch wirkt und die Kathode depolarisiert wird, während in 2,0 n- und 3,0 n-HCl der anodische Bereich praktisch unbeeinflußt bleibt, tritt im kathodischen Bereich beträchtliche Polarisation auf. Verantwortlich für die Schutzwirkung ist wahrscheinlich die harzbildende Fähigkeit von Furfurol.
    Additional Material: 9 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/maco.19670180103
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  • 8
    Electronic Resource
    Electronic Resource
    A generalized equation for computer calculation of liquid densities (1966)
    Hoboken, NJ : Wiley-Blackwell
    AIChE Journal 12 (1966), S. 95-99 
    Details
    ISSN: 0001-1541
    Keywords: Chemistry ; Chemical Engineering
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: A generalized equation explicitly relating reduced density to reduced temperature and reduced pressure has been developed for calculating liquid densities of pure compounds on a digital computer. The analytical formulation is based mainly on a modified corresponding states principle and the graphical correlation of Lydersen, Greenkorn, and Hougen. The calculated densities from the equation reproduce the literature data within 2% for sixty-two saturated liquids and nineteen compressed liquids.With the aid of a pseudocritical method and a generalized equation of vapor pressure, the same equation is readily applied to the estimation of liquid mixture densities. The method of Prausnitz and Gunn is chosen for the evaluation of pseudocritical constants. For fifteen binary systems, one ternary system, and one quinary system, the one hundred fifty-nine calculated densities agree with the literature data to within 3%. This method is limited to pseudoreduced temperatures less than 1.0.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/aic.690120119
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  • 9
    Electronic Resource
    Electronic Resource
    An analysis of turbulent flow in concentric annuli (1969)
    Hoboken, NJ : Wiley-Blackwell
    AIChE Journal 15 (1969), S. 132-133 
    Details
    ISSN: 0001-1541
    Keywords: Chemistry ; Chemical Engineering
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/aic.690150130
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  • 10
    Electronic Resource
    Electronic Resource
    Coalescence in fibrous beds (1966)
    Hoboken, NJ : Wiley-Blackwell
    AIChE Journal 12 (1966), S. 1045-1050 
    Details
    ISSN: 0001-1541
    Keywords: Chemistry ; Chemical Engineering
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: The factors affecting the efficacy of a closely packed bed of mixed cotton and a supporting fiber (Teflon, glass, Dynel) were evaluated for oil-in-water dispersions. Several other water-organic systems were also tested. Superficial velocities ranged from 0.2 to 3.5 ft./min. Successful coalescence was attained at interfacial tensions as low as 3.5 dynes/cm. Dispersed phase viscosity was varied form 1.4 to 137 centipoise. For a mixed-fiber bed with a specific ratio of fiber species, there is an optimum bed depth for best performance. High-speed cinephotomicrographic observations at 100 × and up to 4,000 frames/sec. indicated that fiber wettability is not the most important factor for successful operation.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/aic.690120603
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