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Chapters: Friedel's Salt, Tricalcium Aluminate, Sodium Aluminate, Beta-Alumina Solid Electrolyte, Ettringite, Strontium Aluminate, Monocalcium Aluminate, Dodecacalcium Hepta-Aluminate, Ye'elimite, Lithium Aluminate, Magaldrate, Calcium Aluminates, Sodium Chloroaluminate, Potassium Aluminate. Source: Wikipedia. Pages: 51. Not illustrated. Free updates online. Purchase includes a free trial membership in the publisher's book club where you can select from more than a million books without charge. Excerpt: Calcium aluminium chlorohydrateCalcium aluminium chlorohydroxide Calcium aluminium oxychlorideFriedel's salt is an anion exchanger mineral belonging to the family of the layered double hydroxides (LDHs). It has affinity for anions as chloride and iodide and is capable to retain them to a certain extent in its crystallographical structure. Friedel's salt general formula is: Ca2Al(OH)6(Cl, OH) 2 H2O.In the cement chemist notation, considering that 2 OH O + H2O, and doubling all the stoichiometry, it can also be written as follows: 3CaO Al2O3 CaCl2 10 H2OFriedel's salt can also be considered as an AFm phase in which chloride ions have replaced sulfate ions and is formed in cements initially rich in tri-calcium aluminate (C3A). 2 Cl + 3CaO Al2O3 CaSO4 10 H2O 3CaO Al2O3 CaCl2 10 H2O + SO4It plays a main role in the retention of chloride anions in cement and concrete. However, Friedel's salt remains a poorly understood phase in the CaO-Al2O3-CaCl2-H2O system, and is critical for the stability of salt-saturated Portland cement-based grouts. Nowadays, Friedel's salt discovery is relatively difficult to trace back from the recent literature, simply because it is an ancient finding of a poorly known and non-natural product. It has been synthesised and identified in 1897 by Georges Friedel, mineralogist and crystallographer, son of the famous French chemist Charles Friedel. Georges Friedel also synthesised Calcium aluminate (19...More: http: //booksllc.net/?id=19609885

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