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氢氧化钾除了通碱还有哪些特点?

发布来源:http://www.jinhao360.com    更新时间:2019-09-25 点击数:

相信大家知道氢氧化钾具有碱的通性,易溶于水,有强烈腐蚀性,溶于水放出大量热,除此之外大家知道它的通碱特点还有有哪些呢?接下来就给大家来具体讲解一下吧。

  I believe you know that potassium hydroxide is alkali-soluble, soluble in water, strongly corrosive, dissolving in water emits a lot of heat. In addition, you know what other characteristics of potassium hydroxide? Next, I'll give you a detailed explanation.
  1.碱性反应:可使石蕊试液变蓝、酚酞试液变红。
  1. Alkaline reaction: It can make litmus test solution blue and phenolphthalein test solution red.
  2.氢氧化钾与酸反应:与盐酸、硫酸、硝酸反应。
  2. Reaction of potassium hydroxide with acid: reaction with hydrochloric acid, sulfuric acid and nitric acid.
  KOH+HCl=KCl+H2O2KOH+H2SO4=K2SO4+2H2OKOH+HNO3=KNO3+H2O
  KOH+HCl=KCl+H2O2KOH+H2SO4=K2SO4+2H2OKOH+HNO3=KNO3+H2O
  KOH+HCl=KCl+H2O2KOH+H2SO4=K2SO4+2H2OKOH+HNO3=KNO3+H2O
  KOH+HCl=KCl+H2O2KOH+H2SO4=K2SO4+2H2OKOH+HNO3=KNO3+H2O
  3.与酸性氧化物反应:与二氧化碳、二氧化硫反应。
  3. Reaction with acid oxides: Reaction with carbon dioxide and sulfur dioxide.
  2KOH+CO2=K2CO3+H2O2KOH+SO2=K2SO3+H2O
  2KOH+CO2=K2CO3+H2O2KOH+SO2=K2SO3+H2O
  2KOH+CO2=K2CO3+H2O2KOH+SO2=K2SO3+H2O
  2KOH+CO2=K2CO3+H2O2KOH+SO2=K2SO3+H2O
  4.与两性金属反应:与铝反应。2Al+2KOH+2H2O=KAlO2+3H2↑
  4. Reaction with amphoteric metals: Reaction with aluminium. 2Al+2KOH+2H_2O=KAlO_2+3H_2_
氢氧化钾
  5.与两性氧化物反应:与氧化铝反应。Al2O3+2KOH=2KAlO2+H2O
  5. Reaction with amphoteric oxides: Reaction with alumina. Al2O3+2KOH=2KAlO2+H2O
  6.与两性氢氧化物反应:Al(OH)3+KOH=KAlO2+2H2O
  6. Reaction with amphoteric hydroxides: Al(OH)3+KOH=KAlO 2+2H 2
  7.与过渡元素盐溶液发生复分解反应
  7. Double decomposition reaction with salt solution of transition element
  CuSO4+KOH=Cu(OH)2↓+K2SO4FeCl3+3KOH=Fe(OH)3↓+3KCl
  CuSO4+KOH=Cu(OH)2_+K2SO4FeCl3+3KOH=Fe(OH)3_+3KCl
  CuSO4+KOH=Cu(OH)2:+K2SO4FeCl3+3KOH=Fe(OH)3:+3KCl
  CuSO4+KOH=Cu(OH)2:+K2SO4FeCl3+3KOH=Fe(OH)3:+3KCl
  大家在了解了上述关于氢氧化钾的通碱特点,另外,由于它对碳水化合物的分解作用,而使其相对于酸腐蚀的危险更加严重,所以大家在使用的时候一定要注意安全,如果大家还想了解更多资讯,请继续关注我们吧。
  In addition, due to its decomposition of carbohydrates, the risk of acid corrosion is more serious. So we must pay attention to safety when using potassium hydroxide. If you want to know more information, please continue to pay attention to us.

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