-
How many degrees of formaldehyde will be released is as follows:
1. The volatile point of formaldehyde is 9 degrees Celsius, and when the room temperature is lower than this temperature, almost all formaldehyde is stored indoors and is no longer released outward.
2. In addition, the volatilization of formaldehyde will increase violently with the rise of temperature. In winter, the concentration of formaldehyde released into the air doubles for every 1 degree Celsius increase in room temperature.
3. The effect of temperature on formaldehyde release is due to the adsorption of formaldehyde on the solid surface by the residue in the pollution source and the decomposition of organic matter, when the temperature rises, the desorption effect of formaldehyde is strengthened, and the release rate of formaldehyde is also accelerated.
-
Is the volatilization temperature of formaldehyde 19 degrees?
-
Formaldehyde is generally released faster when the temperature reaches more than 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 hidden in the room will volatilize. It is reported that when the indoor temperature rises by 1, the volatilization rate of formaldehyde doubles. This is also why in summer, or when heating in winter, formaldehyde in new houses is more likely to exceed the standard.
Based on this attribute, summer has also become the best time to remove formaldehyde. Because summer is in the high temperature period, the room temperature is generally high, at this time, a large amount of formaldehyde hidden in the new house will be released. When the indoor temperature reaches more than 25, formaldehyde will volatilize faster.
Other factors that affect formaldehyde release
1. Humidity: humidity is an important factor affecting the release of formaldehyde, if the home is very humid, it will increase the volatilization of formaldehyde, formaldehyde and urea catalyze the formation of urea-formaldehyde resin under the chemical reaction, and urea-formaldehyde resin is mostly used in many places of our interior decoration, such as floors, storage cabinets, etc., if the room is humid, urea-formaldehyde resin will decompose into urea and formaldehyde, so that formaldehyde is released, so a large basin of water is placed indoors for the absorption of formaldehyde effect is also good.
2. Air flow: The premise of air flow is to open the window, but it is not only to open the window, the air flow is required, then the formaldehyde release will be more, and the formaldehyde discharged to the outside will be more, which is more effective for the removal of formaldehyde, because the density of formaldehyde is heavier than that of air, and it is generally floating below.
3. Release source: Many places in our room contain formaldehyde, and the amount of formaldehyde contained in different materials is different, and the volatilization time is also different. Generally, it takes about a week to half a month for wall paint to evaporate, wallpaper takes at least 1 year, large core board is 1 year to 5 years, and some man-made boards can not be volatilized even for 15 years.
-
Formaldehyde will be released faster and faster after 19 degrees, if the indoor formaldehyde exceeds the standard, we can use some heating equipment to accelerate the volatilization of formaldehyde, and then release formaldehyde by opening windows for ventilation, but using heating equipment, we must be careful to avoid risks such as fire, and the following will introduce some methods for you to remove formaldehyde, so that you can efficiently remove formaldehyde.
1. Wise Stone.
It is a very popular purification product on the market in recent years, the main reason is that it has the dual function of absorption and decomposition, can actively absorb free formaldehyde in the air, and does not have to worry about the influence of external factors such as temperature, humidity, light, etc. The adsorbed formaldehyde will also be decomposed into water and carbon dioxide and discharged from the body, without drying and no secondary pollution. When choosing, it is important to note that it is a gray ore with an irregular shape and is not a round particle.
2. Plants.
Putting some green plants at home can also effectively remove odors, especially pothos, spider plants, aloe vera, monstera, cactus, ivy, etc., which can effectively absorb harmful gases. In addition, large plants such as the Ping An tree and the camphor tree, which are more popular on the market, can release a fresh gas on their own, which makes people feel happy, and is also more suitable for removing the smell of new furniture
3. Open windows for ventilation.
Open the window ventilation is the best way to remove free formaldehyde, when the window is opened, there will be a steady stream of fresh air will dilute the indoor air containing formaldehyde to achieve the purpose of purifying formaldehyde, but the window is easily affected by the weather, and the effect is also affected by the house type when used.
4. Formaldehyde remover.
Under certain conditions, formaldehyde scavengers react chemically with formaldehyde to produce other substances that are not harmful to health, so as to reduce the concentration of formaldehyde in the room. But it's also a chemical in its own right, and if used incorrectly, it can be another source of pollution indoors.
Fifth, the fresh air system.
The fresh air system is similar to the ventilation method of removing formaldehyde, but there is no need to open the window when in use, and the air delivered to the room is filtered, and it is also used when it exceeds the standard.
Formaldehyde in indoor decoration pollution is mainly in indoor decoration materials, of which harmful substances account for a large proportion of latex paint, paint, wallpaper and other wall coatings, so it is very important to deal with formaldehyde from the source.
-
Summary. According to the physical properties of formaldehyde: the boiling point of formaldehyde is 19 degrees, and the flash point is 60 degrees. The higher the temperature, the faster formaldehyde is released.
When the temperature reaches 30 degrees, the release of formaldehyde will reach more than 19 times that of normal temperature.
At what temperature is formaldehyde released quickly.
According to the physical properties of formaldehyde: the boiling point of formaldehyde is 19 degrees, and the flash point is 60 degrees. The higher the temperature, the faster formaldehyde is released. When the temperature reaches 30 degrees, the release of formaldehyde will reach more than 19 times that of normal temperature.
1. Generally speaking, the ventilation method is the most common way to remove formaldehyde in our new house, which is to open the windows of the new house for ventilation and discharge the harmful gases from the room to the outside. Disadvantages: It takes a long time, and it generally takes more than three years for formaldehyde to be removed.
2. Formaldehyde deodorization method: formaldehyde deodorant, the capture and decomposition of harmful pollutants such as purple formaldehyde, benzene and ammonia, killing germs and harmful microorganisms of mites, purifying the air and eliminating odors.
Formaldehyde volatilizes at a temperature of 19 degrees to 6 degrees. Formaldehyde is generally released quickly at 19 to 6 degrees. It will also volatilize formaldehyde in large quantities. >>>More
Mild poisoning has systemic symptoms such as blurred vision, dizziness, headache, and fatigue, and chest X-ray examination has no important positive findings except for the enhancement of lung markings. Moderate poisoning can be diagnosed as moderate poisoning according to the following comprehensive analysis: persistent cough, hoarseness, chest pain, dyspnea, etc >>>More
The highest density of water at 4 is determined by the special structure of hydrogen bond association between water molecules. According to recent X-ray studies, it has been proved that ice has a tetrahedral crystal structure. This tetrahedron is formed by hydrogen bonding, which is an open relaxation structure, because five water molecules cannot take up the volume of all tetrahedra, and hydrogen bonds in ice connect these tetrahedra into a whole. >>>More
The dissolution of general solids in water is related to temperature, but the relationship between the dissolution of salt water and temperature can generally be ignored, because the dissolution of salt water has little relationship with temperature. >>>More
I think it may mean that one of his temperatures is around 30 to 40 degrees, because after all, this temperature is also a relatively suitable temperature.