Q: Can formaldehyde be volatilized without opening windows?
A: No, you cannot.
Formaldehyde is a simple organic aldehyde, also known as "antaldehyde". The chemical formula is HCO.
Formaldehyde is a strong irritation to the mucous membrane and has a tear-jerking effect, which can make the protein coagulate, and it is easy to harden and even local tissue necrosis when touched. In the list of carcinogens published by the World Health Organization's International Agency for Research on Cancer, formaldehyde is classified as a group 1 carcinogen.
Because the boiling point of formaldehyde is only minus 195 degrees Celsius, so formaldehyde will exist in a colorless gaseous state at room temperature.
There are carbonyl oxygen atoms and -hydrogen atoms in the molecular structure of formaldehyde, which are chemically active, which can not only react with many compounds to generate many important industrial chemicals and intermediates, but also can undergo condensation reactions themselves, so they are generally used in the form of aqueous solutions and polymers in industry. The 40% aqueous solution of formaldehyde is commonly known as "**".
In human production and life, formaldehyde is a pervasive and organic chemical that cannot be discarded. In addition to being used as a disinfectant and preservative, it is also widely used in housing, furniture, dyeing and weaving industries, including in the electrical, automobile, and aerospace industries, and formaldehyde is still playing a prominent role. The free formaldehyde that exists in urea-formaldehyde resin, phenolic resin and melamine formaldehyde resin and can be volatilized from the products made of them is very harmful to human health and is one of the important topics to be studied and solved by countries around the world.
For the disgusting "terrible" formaldehyde, nagging green plants, suggesting activated carbon adsorption, selling antidotes, etc., etc., they really have their own words and make a lot of fun. There are even people who even instigate people to close the windows and use the so-called "high technology" they promote in order to sell products! (Activated carbon adsorption is feasible, but you have to find a way to "rush" formaldehyde.) ）
You know, when formaldehyde is mixed into the air, opening doors and windows to let the air circulate to dilute its concentration is the only option, of course, it is better to have an exhaust device.
Then operate according to the physical and chemical properties of formaldehyde: first, formaldehyde is hydrophilic, it can be liquid in water; Second, formaldehyde has strong reducing ability, especially in alkaline solution, the reducing ability is stronger.
According to the above characteristics, spraying alkaline water into the air with the cooperation of ventilation is the simplest and most effective way to remove formaldehyde.