Potassium hydroxide is a non organic compound with the chemical formula KOH. It is a common non organic alkali and has strong alkalinity. The pH of a 0.1mol/L solution is 13.5, soluble in water and ethanol, slightly soluble in ether, and easily absorbs moisture from the air and deliquests. It absorbs carbon dioxide to form potassium carbonate. It is mainly used as a raw material for the production of potassium salts and can also be used in electroplating, printing and dyeing, etc.
Potassium hydroxide appears as a white flake or powder, with strong corrosiveness and alkalinity. When potassium hydroxide is exposed to the air, it is easily deliquescent by the moisture in the air and absorbs carbon dioxide to form potassium carbonate. Easily soluble in water, ethanol, or acid, and releases a large amount of heat.
The solubility of potassium hydroxide varies at different temperatures. At 0 ℃, 97 grams of potassium hydroxide can be dissolved; At 10 ℃, it can dissolve 103 grams of potassium hydroxide; At 20 ℃, it can dissolve 112 grams of potassium hydroxide; At 30 ℃, 126 grams of potassium hydroxide can be dissolved. It can be seen that at high temperatures, the solubility of potassium hydroxide also increases.
Potassium hydroxide has a burning effect on tissues, which can dissolve proteins and form alkaline denatured proteins. Solution or dust splashing on the skin, especially on the mucous membrane, can produce soft scabs. The higher the solubility and temperature of potassium hydroxide, the stronger its effect. If accidentally splashed into the eye, it can not only damage the cornea, but also cause deep tissue damage to the eye.
The higher allowable concentration of potassium hydroxide is 0.5mg/m. During work, it is necessary to prevent contact with the skin and eyes. If accidentally touched in a timely manner, the damaged area can be washed with running water, and then wet applied with 5% acetic acid, tartaric acid, hydrochloric acid or citric acid solution; If splashing into the eyes, wash carefully and slowly with running water or physiological saline for 10 to 30 minutes, and then add 2% novocaine or 0.5% dicaine solution. For more related matters, come to our website http://www.jinhao360.com consulting service