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Process for production of magnesium fluoride sol solutions from alkoxides comprising addition of magnesium salts
Process for production of magnesium fluoride sol solutions from alkoxides comprising addition of magnesium salts
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机译:由醇盐生产氟化镁溶胶溶液的方法,包括添加镁盐
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摘要
The invention relates to a method for obtaining a magnesium fluoride (MgF2) sol solution, comprising the steps of providing a magnesium alkoxide precursor in a non-aqueous solvent and adding two molar equivalents of non-aqueous hydrofluoric acid, characterized in that the reaction proceeds in the presence of a second magnesium fluoride precursor selected from the group of salts of strong, volatile acids, such as a chloride, bromide, iodide, nitrate or triflate of magnesium, or of a catalytic amount of a strong, volatile acid; and/or an additive non-magnesium fluoride precursor selected from the group of salts of strong, volatile acids, such as a chloride, bromide, iodide, nitrate or triflate of calcium, strontium, barium, aluminium, silicium, zirconium, titanium or zinc. The invention further relates to sol solutions, method of applying the sol solutions of the invention to surfaces as a coating, and to antireflective coatings obtained thereby.
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