Is formaldehyde content high in solid wood furniture?

Compared with man-made composite panel furniture, the formaldehyde content of solid wood furniture is much lower.

Formaldehyde is mainly found in paint and glue, and there are almost no of these in solid wood furniture.

Natural solid wood is much more environmentally friendly and durable, but it may not be as trendy as composite panels in style.

It depends on which one you focus on.

Removal method: ventilation method:

Through the circulation of indoor air, the content of harmful substances in indoor air can be reduced, thereby reducing the harm of such substances to the human body.

In winter, people often close doors and windows, indoor and outdoor air can not circulate, not only the content of formaldehyde in indoor air will increase, radon will also continue to accumulate, and even reach a high concentration.

Advantages: good effect, no cost.

Disadvantages: It takes a long time, and it generally takes more than three years for formaldehyde to be removed.

Deodorization method: formaldehyde deodorant, purple formaldehyde, benzene and ammonia harmful pollutants capture and decomposition, kill germs, and mites harmful microorganisms, purify the air, and eliminate odors.

Some also have formaldehyde, some do not, and can be detected in the following ways:

1. Phenol reagent method.

The phenol reagent method is the MBTH method, that is, formaldehyde reacts with phenol reagent (3-methyl-2-benzothiazolone hydrazone hydrochloride) to form azine, which is oxidized to blue by iron ions in an acidic solution, and the color is developed after 15min at room temperature, and then quantified by color [m]. The phenol reagent method is easy to operate, has high sensitivity, and the detection limit is, which is more suitable for the determination of trace formaldehyde.

However, aliphatic aldehydes also have a similar reaction, which will interfere with the determination, and sulfur dioxide will also interfere with the determination, so that the results are low, so it is necessary to be cautious when applying this method when determining the hanging white block.

The stability of phenol reagent is poor, the chromogenic agent MTBH can only be stored for 3d in the 4 refrigerator, and the stability of absorbance after color development is not as good as that of acetylacetone method, and the color development is limited by time and temperature. This method is mostly used for the detection of formaldehyde in the room. This method is also sometimes used for the determination of formaldehyde in textiles and food.

AHMT method.

AHMT method is a method for condensation of formaldehyde and AHMT (4-amino-3-azine-5-mercapto-1,2,4-triazama) under alkaline conditions, oxidation of potassium periodate into purple-red compound, and then colorimetric quantitative detection of formaldehyde content. The AHMT method can develop color at room temperature, and the coexistence of SO and NO does not disturb the measurement, and the sensitivity is better than that of the colorimetric method.

The specificity and selectivity of this method are good, and it does not interfere with the determination when a large number of aldehydes such as acetaldehyde, propionaldehyde, butyraldehyde, and phenylacetaldehyde coexist, and the detection limit is mg L.

However, the color development of the AHMT method gradually deepens with time during operation, and the color reaction reaction of the standard solution and the color reaction time of the sample solution must be strictly unified, the reproducibility is poor, and it is not easy to operate, and it is mostly used for the detection of formaldehyde in the room.

No matter what kind of furniture it is, as long as lacquer and glue are used, it must contain formaldehyde, but relatively speaking, the formaldehyde content of solid wood furniture is much lower than that of board furniture, because board furniture is mainly wood-based panels, and wood-based panels will use a lot of glue in the production process.

All solid wood furniture is not included.

1. Solid wood itself does not contain formaldehyde, and the formaldehyde content of pure solid wood furniture When making solid wood furniture, some interfaces need to use adhesives, and formaldehyde is one of the commonly used raw materials in adhesives, so solid wood furniture will also contain a certain amount of formaldehyde. However, compared with woodworking board and MDF, the formaldehyde content in solid wood furniture will be less.

2. The formaldehyde content of pure solid wood furniture is the lowest and can be reached, but when buying, you must ask which part is solid wood, what kind of solid wood is used, not solid wood veneer, if the formaldehyde content of solid wood veneer furniture is less environmentally friendly than that of particleboard. However, solid wood furniture also has the hazard of benzene. Therefore, it is better to compare more when purchasing.

The second is panel furniture, choose a larger brand, depending on what material they use. Whether the furniture is environmentally friendly mainly depends on whether the panels used are environmentally friendly. See if there is a formaldehyde test report provided by an authoritative testing department.

3. The volatilization period of formaldehyde content of pure solid wood furniture is 3 to 15 years, which refers to its natural volatilization period, and volatilization is also related to many factors (such as temperature, ventilation, etc.), and the conditions are different, and the volatilization is not the same. Although the national standard of the board is, but as the national standard of indoor air, the content of formaldehyde is, in a certain space class, although it is a qualified board, but due to a large number of use, the air quality can exceed the standard.

1. The formaldehyde of the solid wood bed is not high, but in the production process, glue needs to be used, and the glue contains formaldehyde, and the natural formaldehyde content is easy to exceed the standard if the amount of glue is too much.

2. The paint contains organic components such as formaldehyde, and the release of these paint substances into the air has a certain harm to the human body, so it is necessary to open more windows for ventilation.

3. In addition, many plants can also absorb toxic gases, such as spider plants, pothos and other plants.

National standard for formaldehyde content of solid wood furniture:

1. The national standard of the People's Republic of China "Solid Wood Parquet" stipulates that the formaldehyde emission of Class A solid wood parquet is less than and equal to 9 mg 100 grams; Class B parquet formaldehyde emission is equal to 9 mg - 40 mg of 100 grams.

2. The "Technical Requirements for National Environmental Labeling Products - Artificial Wood Panels" stipulates that the formaldehyde emission in man-made panels should be less than milligrams of cubic meters; The amount of formaldehyde released in wood flooring should be less than milligrams of cubic meters.

1. Different solid wood furniture will release formaldehyde. For solid wood furniture made of a mixture of solid wood and wood-based panels, formaldehyde contamination will inevitably occur due to the use of thin wood veneered particleboard or MDF fiberboard for the top, bottom, shelves and other parts of the side panels.

2. Most solid wood furniture generally uses solid wood finger joint board as the auxiliary board of furniture, also known as single-layer solid wood finger joint board. This kind of board is an effective application of wood resources, the use of less glue than the light, environmental performance is better.

3. In the process of furniture consumption, wood, boards, glue, paint, leather, etc. contain formaldehyde. No matter how good the wood is glued and painted, formaldehyde will be released, so according to the modern furniture manufacturing process, zero formaldehyde is impossible.

At present, the formaldehyde removal method on the market can be everywhere on the Internet, and it is recommended to choose the most scientific formaldehyde removal method recommended by CCTV experts: purple and black formaldehyde removal It will catalytically decompose all harmful gases in the air into carbon dioxide and water while detecting discoloration, and preferentially adsorb and lock polar polluting gases such as benzene, ammonia, TVOC, etc., so that pollution can no longer escape back into the outside air, and will not bring any harm to the human body, which is simple and convenient to use, healthy and environmentally friendly.

Solid wood has several kinds: all solid wood: all solid wood furniture solid wood will not have a nail content.

A common concept is that formaldehyde will exist where there is gluing and coating. Both downstairs were right. As long as you reach E1 E0 level, you can do it.

However, the domestic standard is basically E1 (less than milliliters), which requires professional tools to detect. Solid wood composite, MDF (plate type): The above two ways contain a very large chance of exceeding the nail plate.

Choose a well-known brand to buy. It is recommended to choose the E0 standard (less than milligrams) of the forma, thank you for adopting.