| 41. | The latter minerals are rapidly soluble, and about 2 % of these in cement is needed to control tricalcium aluminate hydration.
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| 42. | In the second stage sodium hydroxide solution is added, which dissolves the sodium aluminate, leaving the impurities as a solid residue.
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| 43. | Upon reaching its saturation limit, the aluminate compound decomposes ( 2 ) into sodium hydroxide and a crystalline precipitate of aluminum hydroxide.
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| 44. | Colors with longer wavelengths can be obtained from the strontium aluminate as well, though for the price of some loss of brightness.
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| 45. | In nuclear technology, lithium aluminate is of interest as a solid tritium breeder material, for preparing tritium fuel for nuclear fusion.
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| 46. | Georges Friedel also synthesised Calcium aluminate ( 1903 ) in the framework of his work on the Macles theory ( twin crystals ).
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| 47. | An improved process using a combination of aluminium chloride and sodium aluminate with sodium acetate prepared " in situ " has been patented:
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| 48. | In Portland cement, a little calcium sulfate ( typically 3-10 % ) is added in order to retard the hydration of tricalcium aluminate.
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| 49. | It is one of a number of aluminium acetates and can be prepared in a reaction of sodium aluminate ( NaAlO 2 ) with acetic acid.
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| 50. | Three major transparent candidates currently exist : aluminum oxynitride ( AlON ), magnesium aluminate spinel ( spinel ), and single crystal aluminum oxide ( sapphire ).
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