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The release rate of free formaldehyde is indeed related to the ambient temperature, and the higher the temperature, the more it is released, and the more pollution it will be.
The boiling point of formaldehyde is that formaldehyde will volatilize above this temperature, and 19 is naturally much higher than this, of course, it will be released.
I guess you didn't see the sub-zero symbol, hehe!
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No. Formaldehyde has two characteristics, one is the volatile point in 19, and the higher the temperature, the more intense the volatilization, the other is the incubation period of up to 3-15 years, these two characteristics make formaldehyde a stubborn molecule of air pollution, the formaldehyde volatile point is 19, the temperature rises by one degree, the concentration rises by several times, especially in spring and summer, the temperature rises more violently and the concentration will exceed 3 times the normal. Formaldehyde molecules are more active in spring and summer than in winter, and the volatilization rate is faster.
In the case of low average temperature in winter, the volatilization of formaldehyde is not very active.
Precautions for removing formaldehyde.
Be careful not to hurt furniture when removing formaldehyde: some formaldehyde removal potions contain organic agents due to the principle of similar compatibility.
Chemical reactions may occur with leather surface coatings or paints on furniture surfaces.
The surface falls off and cracks, so it is necessary to protect it in the case of metal hardware, and after spraying, it is necessary to use toilet paper in time.
Or wipe it clean with a paper towel to avoid damage to the paint on the metal hardware.
When removing formaldehyde in a new house, it is necessary to open doors and windows for ventilation: formaldehyde treatment has been recognized by many people, but there are still some people who think that formaldehyde treatment potion will produce formaldehyde treatment process, and the free formaldehyde in the wood-based panel will also be volatilized when the water of the agent evaporates, so the indoor formaldehyde concentration will also increase in the process of formaldehyde removal construction.
The above content refers to Encyclopedia-Formaldehyde.
People's Daily Online-The new house has been idle for 3 months, and only part of the formaldehyde is eliminated, and it is recommended to test the air before moving in.
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<> 1. How many degrees of formaldehyde will be released in large quantities?
1. The boiling point of formaldehyde is 19 degrees Celsius.
That is to say, 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 the summer is in the hot period.
The room temperature is generally high, and at this time, a large amount of formaldehyde hidden in the new house will be released.
2. Under normal circumstances, when the indoor temperature reaches more than 25, formaldehyde volatilizes relatively quickly, however, the volatilization of formaldehyde can not only look at the temperature, but also be affected by many factors, such as the degree of indoor dirt and skin, if the pollution is heavier, then the release of formaldehyde will be faster. In addition to the indoor temperature and the degree of pollution, the volatilization of formaldehyde and the relative humidity of the room.
There is also a certain relationship between the circulation of indoor air.
2. How long does it take for formaldehyde to volatilize?
1. Formaldehyde volatilization should be determined according to the volatilization time of the specific release source. Generally speaking, trace amounts of formaldehyde can be dispersed in a few days, while high concentrations of formaldehyde can last for 3 to 15 years. For example, it takes about 7 days for formaldehyde to be coated on the wall to volatilize, and it may take 18 months for formaldehyde to be applied to the wallpaper.
The formaldehyde content takes 15 months to 5 years, MDF.
It takes more than 3 years or even more than 10 years for formaldehyde.
2. In addition, due to the amount of formaldehyde released.
The interaction with the bearing capacity of interior decoration, the more complex the decoration, the slower the formaldehyde volatilization. At the same time, the release of formaldehyde is a continuous process, from thick to light, after a period of dust type formaldehyde concentration can gradually decrease.
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Even if your home is only 13 degrees, formaldehyde will always be released for more than ten years.
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It also volatiles, and the amount of volatilization is different when the temperature is low and the amount is different when the temperature is high.
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Summary. No. First of all, it is not completely free of formaldehyde in winter, indoor formaldehyde is released at any time, but due to the low temperature in winter, formaldehyde is released more slowly than usual. Secondly, a large amount of formaldehyde in the room at low temperatures.
No. First of all, it is not completely free of formaldehyde in winter, indoor formaldehyde is released at any time, but due to the low temperature in winter, formaldehyde is released more slowly than usual. Secondly, a large amount of formaldehyde in the room at low temperatures.
Formaldehyde must be ventilated more.
The new house has been renovated for more than half a year, and I am still a little worried because I have an 8-year-old child.
Generally, it takes 2 years for formaldehyde to be fully dissipated.
So when I sleep, I still open the window, and I can't smell it in the house, so it shouldn't be a big problem.
Formaldehyde can't be smelled, and you must open the window for half an hour to sleep, and put a few pots of pothos in the house, which will be better.
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This is a wrong statement, the boiling point of formaldehyde is very low is -19, and formaldehyde will volatilize at normal room temperature, but the degree of volatilization is different according to the temperature. As long as the indoor temperature is greater than -19, it will volatilize, but the temperature is low and the volatilization is slow, and the volatilization is faster above 25.
The change of ambient temperature affects the volatilization of formaldehyde, and the higher the temperature, the faster the formaldehyde volatilization. The allowable concentration of formaldehyde is about milligrams per cubic meter. Long-term excessive exposure to formaldehyde has carcinogenic and distorting effects on human traces.
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Summary. Indoor temperature higher than 19 degrees does not lead to the release of formaldehyde, which is mainly related to indoor air humidity and ventilation. In general, formaldehyde emissions will gradually decrease at room temperature, but if the air humidity is high or the ventilation is poor, it may lead to an increase in formaldehyde emissions.
If there is a formaldehyde pollution problem indoors, the following measures are recommended:1Enhanced ventilation:
Open doors and windows to increase indoor air circulation, which is conducive to the volatilization and discharge of formaldehyde. 2.Use an air purifier:
Reduce the use of formaldehyde**, such as not using formaldehyde-containing chemicals, home decoration materials, etc. For the cabinet door you mentioned, if the door is made of a material that contains formaldehyde, then it may release formaldehyde. However, if the cabinet door has been tested and certified, then the formaldehyde emission should meet the national standard and will not cause harm to the human body.
If you have concerns about the formaldehyde content in your room, it is recommended that you conduct an indoor air quality test to determine if there is a formaldehyde pollution problem and take appropriate measures to solve the problem.
If there is formaldehyde above 19 degrees indoors, if the indoor doors and windows are closed, is the formaldehyde left in the cupboard door?
Are you there. Indoor temperature higher than 19 degrees does not lead to the release of formaldehyde, which is mainly related to indoor air humidity and ventilation. In general, formaldehyde emissions will gradually decrease at room temperature, but if the air humidity is high or the ventilation is poor, it may lead to an increase in formaldehyde emissions.
If there is a formaldehyde pollution problem indoors, the following measures are recommended:1Enhanced ventilation:
Open doors and windows to increase indoor air circulation, which is conducive to the volatilization and discharge of formaldehyde. 2.Use an air purifier:
Reduce the use of formaldehyde**, such as not using formaldehyde-containing chemicals, home decoration materials, etc. For the cabinet door you mentioned, if the door is made of a material that contains formaldehyde, then it may release formaldehyde. However, if the cabinet door has been tested and certified, then the formaldehyde emission should meet the national standard and will not cause harm to the human body.
If you have concerns about the formaldehyde content in your room, it is recommended that you conduct an indoor air quality test to determine if there is a formaldehyde pollution problem and take appropriate measures to solve the problem.
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