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氢氧化钾还可以用作除油剂!

发布来源:http://www.jinhao360.com    更新时间:2019-11-15 点击数:

  氢氧化钾的应用非常广泛,除了我们以前的文章中用于生产洗面奶,制备难熔粘合剂,添加在混凝土中,它还可以用于生产除油剂,让我们来详细看看。

  The application of potassium hydroxide is very extensive. In addition to our previous articles, it can be used to produce facial cleanser, prepare refractory adhesive, and add it to concrete, it can also be used to produce degreaser. Let's take a look at it in detail.
  它是常用的除油剂之一,能与硬脂酸皂化动植物油,能产生水溶性硬脂酸钠和甘油。但是,当浓度较低时,当pH值小于10.5时,硬脂酸钠会水解,除油效果不是很好。但是,如果浓度过高,硬脂酸钠和表面活性剂的溶解度会降低,导致可洗性差。虽然氢氧化钾可以去除油,但油本身不容易去除。因此,一般用量应在100g/L范围内,且大多数应在50g/L至70g/L之间,以达到良好的清洗效果。
  It can saponify animal and vegetable oil with stearic acid and produce water-soluble sodium stearate and glycerin. However, when the concentration is low and the pH value is less than 10.5, the sodium stearate will hydrolyze and the oil removal effect is not very good. However, if the concentration is too high, the solubility of sodium stearate and surfactant will be reduced, resulting in poor washability. Although potassium hydroxide can remove oil, the oil itself is not easy to remove. Therefore, the general dosage should be in the range of 100g / L, and most of them should be between 50g / L and 70g / L, so as to achieve good cleaning effect.
氢氧化钾还可以用作除油剂!
  除油液适用于钢、铜及铜合金、铝及铝合金等,除油效果好。但是,在使用时要控制好时间,避免金属的腐蚀。因为它有很强的腐蚀性,所以在使用时要穿戴防护设备。含油的碱性废水在排放前需要中和。它也适用于各种活性染料,当应用于各种活性染料时,其结构具有较好的色彩和再现性。
  The degreasing fluid is suitable for steel, copper and copper alloy, aluminum and aluminum alloy, etc., with good degreasing effect. However, it is necessary to control the time in use to avoid metal corrosion. Because of its strong corrosiveness, it is necessary to wear protective equipment when using. Oily alkaline wastewater needs to be neutralized before being discharged. It is also suitable for all kinds of reactive dyes. When applied to all kinds of reactive dyes, its structure has better color and reproducibility.
  以上介绍的是氢氧化钾用作脱脂剂的方法。使用时需要控制用量和时间,避免需要除油的设备被腐蚀。
  The method of using potassium hydroxide as degreaser is described above. It is necessary to control the dosage and time to avoid the corrosion of the equipment requiring oil removal.

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