oxide and carbon dioxide. Calcium oxide is widely used in industry, e.g., in making porcelain and glass; in purifying sugar; in preparingbleaching powder, calcium carbide, and calcium cyanamide; in water softeners; and in mortars and cements. In agriculture it is used for treating acidic ...
The 55 kDa protein is acidic, having about 20% molar ratio of aspartic acid/asparagine and glutamic acid/glutamine, whereas basic amino acids (lysine and arginine) account for about 10% molar ratio. This matrix protein has binding sites to both Ca2+ and oxalic acid (Li et al., 2003), ...
191or whether it has no effect.192Increasing the alkalinity of the external root surface may be advantageous becausepolymorphonuclear leukocytesandosteoclastsfunction best at a slightly acidic pH, elaboratingacid hydrolases, which leads todemineralizationof hard tissue components and prevents formation of ...
Calcium carbonate is also used in the production of polyethylene and polypropylene. It is an additive to paints and coatings for several purposes including particle size distribution, opacity control, weather resistance, pH control, and anticorrosion. Calcium carbonate is used to buff er acidic soils...
Cations of calcium may be partially replaced by Sr, Ba, Mg, Mn, K, Na, or Fe; anions of orthophosphate may be partially replaced by AsO43−, CO32−, and VO43− anions of hydroxide in the anion channel by chloride, bromide, carbonate, and oxide. Substitution in the apatitic ...
reports suggest there are differences in the surface alkalinity/acidity between the milled and unmilled grades of anhydrous dibasic calcium phosphate; the unmilled form has an acidic surface environment. This difference has important implications for drug stability, particularly when reformulating from, e...
Decomposes at high temperature (825°C) to give gaseous carbon dioxide and calcium oxide (quicklime). Incompatible with acids, alum, ammonium salts, fluorine, magnesium. Reacts with acids and acidic salts to generate gaseous carbon dioxide with effervescence (bubbling). The reaction with ...
The concentration of calcium is maintained at very low levels in the cytosol (0.1 µM), and a steep calcium gradient exists across the plasma membrane (extracellular space calcium at 1 mM) and the membranes of intracellular calcium reservoirs (endosome calcium at 2 µM, acidic ...
Generally, the adsorption capacity strongly depends on adsorption surface properties (surface charge properties, size, surface area, pore presence and size, sites densities, the concentra- tion of acidic/ wick acidic, basic functional groups etc.), sorbent stability under specific conditions (i.e. ...
Glycerol de- hydration over calcium phosphate catalysts: Effect of acidic-basic features on catalytic performance[J]. Applied Catalysis A: Gen- eral, 2012, 447 448(7) : 124-134.Stošic´, D.; Bennici, S.; Sirotin, S.; Calais, C.; Couturier, J.L.; Dubois, J.L.; Travert, A...