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Sodium hydroxide (70 ml) was taken from one molar solution in approximately 1760 ml of distilled water to have the concentration of 0.37 mol/l and heated to boiling. [ Last edited by nbgf on 2013-5-14 at 10:28 ] |
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Mn–Zn ferrite of composition Mn0.4Zn0.6Fe2O4 was prepared by the co-precipitation method. The materials used were manganese chloride (98% Merck, India), zinc chloride (96% Merck, India), iron (III) chloride (98% Merck, India) and sodium hydroxide (96% Merck, India). One molar solution of these materials was made with distilled water. Sodium hydroxide (70 ml) was taken from one molar solution in approximately 1760 ml of distilled water to have the concentration of 0.37 mol/l and heated to boiling. Manganese chloride, zinc chloride and iron (III) chloride were taken from their molar solution in accurate stoichiometric proportions. These solutions were poured as quickly as possible into the boiling solution of NaOH under vigorous stirring produced by the glass mechanical stirrer (500 rpm). Mixing is very important; |
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