The application of potassium hydroxide is very extensive. In addition to our previous articles on producing facial cleansers, preparing refractory adhesives, and adding them to concrete, it can also be used to produce degreasing agents. Let's take a closer look.
It is one of the commonly used degreasing agents, which can saponify animal and vegetable oils with stearic acid and produce water-soluble sodium stearate and glycerol. However, when the concentration is low and the pH value is less than 10.5, 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 surfactants will decrease, leading to poor washability. Although potassium hydroxide can remove oil, the oil itself is not easily removed. Therefore, the general dosage should be within the range of 100g/L, and most should be between 50g/L and 70g/L to achieve good cleaning results.
Oil removal fluid is suitable for steel, copper and copper alloys, aluminum and aluminum alloys, etc., with good oil removal effect. However, it is important to control the time during use to avoid metal corrosion. Because it has strong corrosiveness, it is necessary to wear protective equipment when using it. Alkaline wastewater containing oil needs to be neutralized before discharge. It is also suitable for various reactive dyes, and when applied to various reactive dyes, its structure has good color and reproducibility.
When we configure, we need to prepare 850g of water to be injected into the deoiling tank for use first, and then add it in turn, adding appropriate amounts of potassium hydroxide, as well as some sodium sulfate, sodium alginate and other substances, which can be stirred evenly with a stirring device; Then prepare a separate plastic bucket and pour the water and additives into it. Stir until the substances inside are completely melted, and then pour the plastic bucket into the oil removal tank that was just stirred evenly. This way, a usable oil removal agent is made; Most metals only need to be soaked in a degreasing agent for about 10 minutes when degreasing. If you gently wipe on heavy oil stains, you can almost achieve a good degreasing effect, because many mechanical components used in industry can have large oil stains. Therefore, it is necessary to clean them frequently during use to achieve good results.
When using potassium hydroxide as a degreaser, the effect is often very good because its alkalinity is not as strong as sodium hydroxide, so the damage to hands and other parts is relatively small during use.
The above introduction is about the use of potassium hydroxide as a degreasing agent. In addition, it is important to control the dosage and time of use to avoid corrosion of equipment that requires degreasing. For more relevant content, come to our website http://www.jinhao360.com Consult!