Hahne

Stem layer adsorption was involved in the discussion of the effect of ions on f potentials (Section V-6), electrocapillary behavior (Section V-7), and electrode potentials (Section V-8) and enters into the effect of electrolytes on charged monolayers (Section XV-6). More speciflcally, this type of behavior occurs in the adsorption of electrolytes by ionic crystals. A large amount of wotk of this type has been done, partly because of the importance of such effects on the purity of precipitates of analytical interest and partly because of the role of such adsorption in coagulation and other colloid chemical processes. Early studies include those by Weiser [157], by Paneth, Hahn, and Fajans [158], and by Kolthoff and co-workers [159], A recent calorimetric study of proton adsorption by Lyklema and co-workers [160] supports a new thermodynamic analysis of double-layer formation. A recent example of this is found in a study... 

Hahn E, Kampshoff E, Walchli N and Kern K 1995 Strain driven fcc-bct phase transition of pseudomorphic Cu films on Pd (100) Phys. Rev. Lett. 74 1803... 

Rowan L G, Hahn E L and Mims W B 1965 Electron-spin echo envelope modulation Phys. Rev. 137 A61-A71... 

Wraohtrup J, von Borozyskowski C, Bernard J, Brown R and Orrit M 1995 Hahn eoho experiments on a singie tripiet eieotron spin Chem. Phys. Lett. 245 262-7... 

Hahn H, Logas J and Averback R S 1990 Sintering characteristics of nanocrystaiiine Ti02 J. Mater. Res. 5 609... 

Place 35 ml. of a M solution of aluminium tsopropoxide or 7 g. of solid aluminium tsopropoxide, 450 ml. of dry isopropyl alcohol and 21 g. of purified benzaldehyde (Section IV,115) in a 1 litre round-bottomed flask. Fit a short reflux condenser (no water in the cooling jacket) or better a Hahn condenser (2) (containing a 1 cm. layer of ethyl alcohol in the iimer tube) to the flask and arrange for slow distillation from a water bath at the rate of 3-6 drops per minute. Continue the heating until a negative test for acetone is obtained after 5 minutes of total reflux (6-9 hours) if the volume of the mixture falls below 200 ml. during the reduction, add more isopropyl alcohol. Remove the reflux or Hahn condenser and distil off (Fig. II, 13, 3) most of the isopropyl alcohol under atmospheric pressure from a suitable oil bath. Hydrolyse the... 

A modified Hahn condenser, a form of partial condenser, is illustrated in Fig. VI, 12, 1 it is best constructed of Pyrex glass. The dimensions given are only approximate and may be varied slightly. The inside clearance should be approximately 0-3 cm. a water jacket should be fitted over the central portion of the side arm by moans of rubber stoppers. Alternatively, the side arm may have a length of about 10 cm. and a condenser fitted to this in the usual manner. An approximately 1 cm. layer of absolute alcohol is placed in the inner condensing tube and the top of the tube is connected to a reflux condenser. The outside of the condenser below the side arm should be insulated with asbestos cloth or paper. The refluxing mixture boils the ethyl alcohol in the inner tube, most of the isopropyl alcohol is returned to the flask and the acetone distils over. 

The synthesis of a-aminoketones can be achieved using a-halogenated ketones as starting material. These latter are converted into the hexamethylene tetraminium salts by the method of Mannich and Hahn (42). This reaction proceeds in two steps ... 

The existence of a unique duality mapping could easily be proved. Indeed, let 1 = u G y I u = 1 be a unit sphere in V. According to the Hahn-Banach theorem, for every fixed u G E there exists a unique element u G V such that u = 1, u, u) = 1 due to the strict convexity of V. Let us define... 

C. N. Fletcher, P. Jones, and M. Winterton, "Clean Agent Fire Extinguishant Break-Down Products," 1990 International Conference on CEC and Hahn Altematipes, Baltimore, Md., 1990. 

AutomaticMoldingwith "Hahn" TEE, Allied Chemical Corp., Morristown, N.J., 1967. 

The ID homonuclear Hartmann-Hahn (HOHAHA) experiment is an excellent way to determine complete coupled spin networks (18). The following pulse sequence is used ... 

R. A. Hahn and N. A. Beck, ISCCTProceedings of 5th International Congress on Advances in Non-Impact Printing Technologies, San Diego, Calif., 1989, pp. 441-448. 

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