At what temperature is formaldehyde released quickly?

Formaldehyde is generally released faster when the temperature reaches above 25℃.

The boiling point of formaldehyde is 19 degrees Celsius, that is, when the temperature exceeds 19 degrees Celsius, the higher the temperature, the faster the formaldehyde stored indoors evaporates. It is reported that when the indoor temperature rises by 65438 0℃, the volatilization rate of formaldehyde increases by 0.4 times. This is why formaldehyde is more likely to exceed the standard when heating new houses in summer or winter.

Based on this attribute, summer has also become the prime time in in addition to formaldehyde. Because summer is in a high temperature period, the indoor temperature is generally high, and the formaldehyde hidden in the new house will be released in large quantities. When the indoor temperature reaches above 25℃, formaldehyde will evaporate faster.

Other factors affecting formaldehyde release

1, Humidity: Humidity is an important factor affecting formaldehyde release. If the house is very humid, it will increase the volatilization of formaldehyde. Formaldehyde and urea catalyze chemical reaction to produce urea-formaldehyde resin, which is mostly used in many places of our indoor decoration, such as floors and storage cabinets. If the room is humid, urea-formaldehyde resin will be decomposed into urea and formaldehyde, which will be released. Therefore, putting a large basin of water indoors is effective in absorbing formaldehyde.

2. airflow: the premise of airflow is to open the window, but not just to open the window. Air flow is needed, which will release more formaldehyde, and more formaldehyde will be discharged to the outside, which is more effective for removing formaldehyde. Because the density of formaldehyde is heavier than air, it generally floats below. If only one window is opened and there is no air flow, then the formaldehyde below is almost motionless, so it is useless.

3. Release source: Formaldehyde is contained in many places in our room. Different materials have different formaldehyde content and different volatilization time. Generally, it takes about a week and a half months for wall paint to evaporate, and at least 1 year for wallpaper, 1 year to 5 years for large core board, and even 15 years for some wood-based panels to evaporate.