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要制备一块有规则的大晶体硫酸铜,首先要制备硫酸铜晶种。其方法是:用蒸馏水和分析纯硫酸铜晶体配制一烧杯煮沸状态的近饱和溶液,然后将烧杯置于盛有热开水的面盆中(盖上表面器)让其自然冷却。开始出现晶种是在液体表面,慢慢长大下沉,过一会儿烧杯底上出现许多小晶体。小心取出晶体,选用形状完整的晶体作晶种,并用普通线扎牢作为下一步制备大晶体的晶种。
To prepare a regular large crystal of copper sulfate, copper sulfate seeds must first be prepared. The method is: using distilled water and analytically pure copper sulfate crystals to prepare a beaker of boiled near-saturated solution, and then place the beaker in a basin with hot boiling water (covering the surface device) to allow it to cool naturally. Crystals began to appear on the surface of the liquid and slowly grew to sink. After a while, many small crystals appeared on the bottom of the beaker. Carefully take out the crystal, use the complete shape of the crystal as a seed, and use ordinary wire as a seed crystal for the next preparation of large crystals.