The appearance of potassium hydroxide is white flake or powder, with strong corrosivity and alkalinity. When potassium hydroxide is exposed to the air, it is easy to be deliquested by the moisture in the air and absorb carbon dioxide to form potassium carbonate. It is easily soluble in water, ethanol or acid and releases a lot of heat. The solubility of potassium hydroxide is different at different temperatures.
At 0 ℃, 97g potassium hydroxide can be dissolved; At 10 ℃, 103g potassium hydroxide can be dissolved; 112 g potassium hydroxide can be dissolved at 20 ℃; 126g potassium hydroxide can be dissolved at 30 ℃. It can be seen that the solubility of potassium hydroxide increases at high temperature.
Potassium hydroxide can cauterize tissues, dissolve proteins, and form basic denatured proteins. If the solution or dust splashes on the skin, especially on the mucous membrane, it can produce soft scabs. The higher the solubility of potassium hydroxide, the higher the temperature, the stronger the effect. If accidentally splashed into the eyes, it can not only damage the cornea, but also damage the deep tissues of the eyes.
The high allowable concentration of potassium hydroxide is 0.5mg/m. Avoid touching the skin and eyes during work. If it is accidentally touched, wash the damaged part with running water, and then wet apply 5% acetic acid, tartaric acid, hydrochloric acid or citric acid solution; If it splashes into the eyes, wash it carefully and slowly with running water or normal saline for 10~30min, and then add 2% novocaine or 0.5% dicaine solution.
So far we have explained the problem that potassium hydroxide has different solubility at different temperatures. If you have any doubts or needs, you can come to our website at any time http://www.potericlay.com Get in touch!