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碘酊是医院最常用的消毒防腐药,用于皮肤感染和消毒。在配制过程中,操作方法不当亦使碘和碘化钾含量偏低。一、操作不当对碘酊配制的影响用一般溶解法,配制时先将碘化钾溶于少量蒸馏水中,成为较浓的碘化钾溶液,然后加碘搅拌后,能很快地促进溶解。因为碘化钾溶液的浓度愈高,愈有利于络合物的生成。该络合反应是可逆的,当与皮肤接触后,仍可放出游离碘而显杀菌作用。然而在实际操作中,碘化钾溶液配好后,加碘使其很快地完全溶解不易掌握,因为碘是灰黑色或蓝黑色的,碘遇水、乙醇后变为红棕色,有时搅拌还未使碘完全溶解,就加入乙醇和水至全量,这样部分的碘在水、乙醇中
Iodine tincture is the hospital’s most commonly used antiseptic antiseptic for skin infections and disinfection. In the preparation process, improper operation also makes the iodine and potassium iodide content is low. First, the improper operation of the preparation of iodine tincture with the general dissolution method, the first preparation of potassium iodide dissolved in a small amount of distilled water, a thick solution of potassium iodide, and then iodine stirring, can quickly promote dissolution. Because the higher the concentration of potassium iodide solution, the more conducive to the formation of complexes. The complexation reaction is reversible, when in contact with the skin, can still release free iodine and bactericidal effect. However, in practice, potassium iodide solution with a good, very quickly to completely dissolve iodine difficult to grasp, because the iodine is gray-black or blue-black, iodine with water, after the ethanol into a red-brown, and sometimes stirring has not yet made Iodine completely dissolved, add ethanol and water to the full amount, so part of the iodine in water, ethanol