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常用的护肤品含有氢氧化钾吗?

发布来源:http://www.jinhao360.com    更新时间:2020-09-10 点击数:

氢氧化钾与油脂混合反响后,能促使油脂水解,与水解后的酸发作中和反响。碱是制造清洁用品必需的,普通制造液态皂时运用氢氧化钾,固态皂时运用氢氧化钠,它们都是碱。碱与油脂反响后构成皂和甘油,成熟皂的主要成分是“高级脂肪酸盐”,这是一种外表活性剂,有亲油端和亲水端。亲油端分离皮肤中的过氧化油脂和污垢,在冲水的时分亲水端就会与水分离带走污垢,因而起到了清洁的作用。这就是固体肥皂或液体皂的清洁原理。

  It is harmful to some extent, but the reaction of potassium hydroxide mixed with oil can promote the hydrolysis of oil and neutralize the reaction with the acid attack after hydrolysis. Alkali is necessary for making cleaning products. Potassium hydroxide is used for making liquid soap and sodium hydroxide is used for solid soap. They are all alkali. Soap and glycerol are formed after alkali and oil react. The main component of mature soap is "high fatty acid salt", which is a surfactant with hydrophilic and lipophilic ends. The hydrophilic end separates the peroxide oil and dirt from the skin. When flushing, the hydrophilic end separates the dirt from the water and thus cleans the skin. This is the cleaning principle of solid soap or liquid soap.
  氢氧化钾的化学式:KOH, 式量:56.1白色粉末或片状固体。 熔点380℃,沸点1324℃, 相对密度2.04g/cm 3, 折射率n20/D1.421, 蒸汽压1mmHg(719℃)。具强碱性及腐蚀性。极易吸收空气中水分而潮解,吸收二氧化碳而成碳酸钾。溶于约0.6份热水、0.9份冷水、3份乙醇、2.5份甘油。当溶解于水、醇或用酸处置时产生大量热量。0.1mol/L溶液的pH为13.5。中等毒,半数致死量(大鼠,经口)1230mg/kg。溶于乙醇,微溶于醚。有极强的碱性和腐蚀性,其性质与烧碱类似。中等毒, 半数致死量(大鼠,经口)1230mg/kg。!
氢氧化钾
  Chemical formula of potassium hydroxide: KOH, formula amount: 56.1 white powder or flake solid. Melting point 380 C, boiling point 1324 C, relative density 2.04g/cm 3, refractive index n20/D1.421, vapor pressure 1 mmHg (719 C). Strong alkalinity and corrosiveness. It is easy to absorb water in the air and deliquescence, and absorb carbon dioxide to form potassium carbonate. Soluble in about 0.6 parts of hot water, 0.9 parts of cold water, 3 parts of ethanol, 2.5 parts of glycerol. When dissolved in water, alcohol or treated with acid, a large amount of heat is generated. The pH of 0.1 mol/L solution is 13.5. Moderate toxicity, half lethal dose (rat, oral) 1230 mg/kg. Soluble in ethanol, slightly soluble in ether. It has strong alkalinity and corrosiveness, and its properties are similar to those of caustic soda. Moderate toxicity, half lethal dose (rat, oral) 1230 mg/kg.
  氢氧化钾在密封保管的状况下,是长时间有效的。
  Potassium hydroxide is effective for a long time in sealed storage.
  氢氧化钾怕水会潮解!怕开放,由于会吸收空气中二氧化碳,变为碳酸钾!
  Potassium hydroxide is afraid that water will break down! Fear of opening up, because it will absorb carbon dioxide in the air, into potassium carbonate!
  过度加热:会和玻璃发作反响,生成硅酸钾的硅酸盐,产生杂质。
  Overheating: It will react with the glass to produce potassium silicate and impurities.
  所以只需密闭保管,不存在保质期的问题。假如破袋后,倡议尽快运用!
  So it only needs to be kept in closed storage, and there is no problem of shelf life. If the bag is broken, it is advisable to use it as soon as possible.

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