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在直接观察钾离子的焰色反应时,钾离子所产生的紫色光会受到少量钠离子所产生的黄色光的干扰,而把紫色掩盖起来,因此一般都要用蓝色的钴玻璃片把黄色光吸收掉才能观察到钾离子所产生的紫色光。本实验尝试用以下材料代替钴玻璃片: 1、实验材料制作幻灯片用的透明胶片、幻灯片负片、照相底片、废胶片均可使用。制作幻灯片用的蓝色透明颜色水(深蓝色
When directly observing the flame reaction of potassium ions, the violet light produced by potassium ions is interfered by the yellow light generated by a small amount of sodium ions, and the purple is masked. Therefore, blue cobalt glass flakes are generally used to yellow the yellow light. Absorption of light to observe the violet light produced by potassium ions. In this experiment, try to use the following materials instead of cobalt glass flakes: 1. Experimental materials Transparencies, slide negatives, photographic negatives, and waste films for the production of slides can all be used. Blue transparent color water for making slides (dark blue