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According to the main components of mothballs, mothballs can be divided into natural mothballs and synthetic mothballs.
1. Natural mothball: The main ingredient is camphor, which is a ketone, which is a crystal obtained from natural camphor wood. The special fragrance is sublimated by crystals, which can prevent insect erosion and other aspects.
2. Synthetic mothballs: the main components are naphthalene, p-dichlorobenzene, chemical camphor, etc. It is toxic, especially harmful to the liver.
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Natural mothballs are aromatic organic compounds extracted from the branches and leaves of the camphor tree. Synthetic mothballs are organic compounds, and mothballs containing naphthalene are mostly white, have a pungent odor, and sink in water. It generally contains p-dichlorobenzene and naphthalene.
Mothballs are divided into natural mothballs and synthetic mothballs. Natural mothballs are smooth, colorless or white crystals with a fragrant smell that float in water. Natural mothballs, also known as stinky beads, are used to prevent insects, moths and mildew, which are originally aromatic organic compounds extracted from the branches and leaves of the camphor tree.
It is also used in medicine, spices, etc., and is used as a cardiotonic in medicine.
Synthetic mothballs are organic compounds, and mothballs containing naphthalene are mostly white in color, have a pungent odor, and sink in water.
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Mothballs (sanitary balls) are processed from organic matter extracted from petroleum or coal tar, and their main components are naphthalene, p-dichlorobenzene and chemical camphor, which are aromatic hydrocarbons. It is both highly volatile and toxic, among which naphthalene has been banned by the national environmental protection organization in the 90s, and p-dichlorobenzene is also suspected to be a carcinogen.
Mothballs "are harmful to human health, and long-term exposure to the volatile gases of mothballs can lead to cataracts and retinal hemorrhage. Mothballs can also produce neurotoxins, and long-term dependence on the use of mothballs can lead to some degree of neurological toxicity. In fact, in 2008, the European Union began to ban products containing camphor.
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Question 1: What is the main chemical component of mothballs? Sanitary balls are also called mothballs.
In daily life, many people use mothballs to repel moths in suitcases, wardrobes, drawers, and bookcases where clothes and books are stored, so as not to bite and damage clothes and books, which does have a certain repellent effect, but this is not good for human health, especially for children. Because the sanitary ball is not a real camphor, but a by-product extracted from petroleum or coal tar, its main chemical components are naphthalene and naphthol derivative abrasion, which has a certain toxicity. If people inhale air containing naphthalene vapor for a long time, it can cause weakness, headache, loss of appetite, nausea and other reactions.
In severe cases, it can also affect vision and damage the kidneys. In children, there is a genetic defect that causes hemolytic anemia: a lack of glucose-6 phosphorus dehydrogenase in red blood cells.
This disease usually does not show any symptoms, but when it comes into contact with substances such as naphthol, the redox process in the red blood cells will be hindered, and the cell membranes of the red blood cells will be destroyed, and acute hemolytic anemia will occur. At the same time, according to domestic and foreign data reports in recent years, coal tar is still the first class of carcinogens. Many countries have banned its use in everyday life.
In addition, the sanitary ball will cause the white fabric to yellow, and the fastness and strength of the chemical fiber will be reduced. Therefore, the health ball should not be used regularly in daily life. If the clothes have been stored for a long time, they must be fully dried before wearing, so that after it is heated, the naphthalene phenols will become gases and volatilize.
The camphor block, also known as the refined camphor block, is the real camphor. Not only does it not affect the quality of chemically synthesized fibers, but it also has no toxic effect on the human body. Therefore, camphor essence is an ideal item for storing clothes and books.
Question 2: What is the composition of natural mothballs Natural camphor: its system is named: (1R,4R)-1,7,7-trimethyldicyclo[heptane-2-one.
Note: In the past, "naphthalene" may be used as a substitute for camphor (when China was still poor and white in the last century), naphthalene is a toxic substance, and naphthalene and natural camphor are not the same substance.
Naphthalene: Question 3: The main ingredient of mothballs is camphor.
The chemical structure is a bicyclic ketone, the chemical name is: 1,7,7-trimethylbicyclo[heptane-2-one. It has a special aromatic taste.
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The main ingredient in mothballs is naphthol.
Many families use mothballs, especially when the weather is warmer, wrap them in paper towels and put them in the wardrobe or in the pocket of clothes. It can be used to prevent mosquitoes from biting some common homes, clothes, etc., and it also has a good anti-insect effect.
Mothballs are extracted from natural camphor trees, or mothballs with camphor effect made from turpentine as raw materials and chemically treated to refine rounds. Mothballs are large branches with strong volatility and will not affect the human body. Orange imitation mothballs can be divided into two types: natural mothballs and synthetic mothballs.
Natural mothballs are smooth, white crystals.
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Naphthalene. It is divided into natural mothballs and synthetic mothballs, which have the characteristics of anti-insect, moth-proof and anti-mildew. Synthetic mothballs are organic compounds, containing naphthalene mothballs, most of which are white, with a pungent smell and sink in water, while natural mothballs are smooth and white crystals, with a fragrant smell floating in water, which is used to prevent insects, moths and mildew.
Mothballs are generally extracted from natural camphor trees, or turpentine is used as raw material, and after chemical treatment, it is synthesized and refined into mothballs with camphor effect.
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