Glass solutions

More popular and widely used these days are relatively small and simple osmometers based on the Zimm-Meyerson design (Zimm 1946), in which two membranes are held against a glass solution cell by means of perforated metal plates, as shown in figure below. 

The Haber-Klemensiewicz effect relies on charge accumulation either side of the thin membrane of glass. Usually the proton is the only ion of suitable charge and size that can adsorb to the surface of the glass. The potential measured at the pH electrode is in fact the sum of the charges of all ions adsorbed at the glass solution interface, so if other ions were adsorbed, the potential measured would have additional contributions, i.e. from ions other than the proton. It would be non-selective, as described in Section 3.5.2.2 below. 

The dry nematic solution exhibits a smooth texture after being annealed, with a field of disclinations at any glass-solution interface. A nematic phase produced by cooling the isotropic phase will exhibit a complex, mottled texture that slowly anneals to the smooth texture. The ratio Rvv(q)/ Hv(q) (for e = 20 deg.) for either morphology indicates appreciable orientational averaging of the orientation fluctuation. Photon correlation scattering on the... 

Luminescence of Chromium(III) Complexes in Rigid Glass Solutions... 

Drugs presented as solid solutions often have advantages in that the drug is absorbed more rapidly and often more completely although the exact mechanism for absorption is not always clearly defined. Some, for example, are complexes. Others are glass-solutions or suspensions but most are metastable, readily forming brittle or unstable materials on storage, especially in the presence of moisture. 

You can obtain an inorganic garden . For this purpose, pour 30-50 ml of a liquid glass solution into a beaker and drop crystals of cobalt, iron(II), aluminium, nickel, copper, and calcium salts into the solution. What is observed ... 

The scope of this work was not intended to include study and analysis of leaching mechanisms beyond this point, but the data do show that the mechanism is dependent on time, sampling frequency, and type of element. Also, over the long testing period, two different mechanisms account for the release of material. More work is needed to increase our understanding of these high-level waste glass-solution interactions. 

The spectra of several type y (red) crystals have been measured and found to be identical with those of phototropic solids or rigid glass solutions after irradiation. Thus the molecules must pack in these crystals in the quinoid form. (More refined, work has shown that, in fact, the intensity of the 4800 A band decreases as the crystal is cooled to low temperatures. There appears to be a temperature-dependent... 

Many methods exist for the production of phosphor screens [5.296]. For monochromatic tubes a suspension of the phosphor in alcohol or water, with addition of water glass solution, is placed in the tube and is deposited by sedimentation on the inner surface of the faceplate. The adhesion is effected by the slowly precipitating silicic acid. 

Forster, A., J. Hempenstall, and T. Rades. 2001. Characterization of glass solutions of poorly water-soluble drugs produced by melt extrusion with hydrophilic amorphous polynhPtearm Pharmacol... 

While the binuclear complexes are emissive in glass solutions at 77 K, only a weak luminescence was observed for the polymers in a solid state. A... 

The glass/solution equilibria, Eqs. (la) and (lb), are examples of heterogeneous ionics , which describes the... 

To study these reactions use a M solution of sodium silicate, Na2Si03. Commercial (30%) water-glass solutions should be diluted with a five-fold amount of water. 

Sodium silicate (m). Dilute 200 ml commercial (30%) water glass solution with water to 1 litre. 

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