1-Chlorooctadecane

"Shanhai Jing, Hainei Jing" states: "Between the black waters of the Southwest China Sea, there is a vast field of capital, and the backyard is buried. The city is three hundred miles away, covering the middle of heaven and earth, and it comes out of the plain girl. There are anointed beans, anointed rice, anointed millet, and anointed millet, and anointed millet. Hundred grains give birth to themselves, and the harp is broadcast in winter and summer. The bird sings, the phoenix bird sings, and the longevity is real, and the grass and trees gather. There are all kinds of beasts, and they are flocks of each other. This grass also does not die in winter and summer." Among them "sowing the harp", Guo Pu noted: "Sowing the harp is still sowing, and the The "eighteen sea monsters" are mostly brought together by folklore and imagination, and the content involved may be related to strange creatures and unique terroir between mountains and seas. In ancient times, people had limited knowledge of the ocean, and in the face of the vastness of the ocean and the unknown in it, they often gave it a mysterious color with rich imagination. Or to help fishermen and navigators understand marine phenomena and creatures, use legends such as the "eighteen sea monsters" to warn and guide. For example, the appearance of a certain monster indicates changes in sea conditions, so that everyone can take precautions in advance and keep safe. It may also use the "eighteen sea monsters" to carry regional culture and emotions. Through word of mouth, the ancestors' awe and exploration of the ocean are passed on to future generations, condensing the memory and cognition of the ocean of the ethnic group, becoming an important part of marine culture, so that future generations can feel the experience and wisdom of their ancestors in marine activities.

"Tiangong Kaiwu" has a saying: There are eight out of ten halogens, and they are different things, each with its own nature. There are eight out of ten halogens, and their properties are different, so I will tell you in detail. First, the brine is salty and cold and poisonous. It can make proteins coagulate, so it is often used to make tofu to help soy juice solidify and form. However, its toxicity should not be underestimated. If eaten by mistake, it can cause human discomfort and even endanger life. Second, nitrobrine is salty, bitter, salty, warm, and toxic. It was often involved in military affairs in ancient times, and it can make gunpowder, which can help gunpowder ignite and explode, and its power is greatly increased. In physicians, it also has medicinal uses, but the amount needs to be precisely controlled, otherwise the toxic side effects will be Third, borax halogen, cold in nature, sweet and salty in taste. It is mostly found in metallurgy and ceramics, and can help melt and improve material properties. For medical use, it has the effect of clearing away heat and detoxifying, reducing swelling and antiseptic, and can treat sore throat, mouth sores and other diseases. Fourth, magnesium sulfate halogen, cold in nature. In agriculture, it can be used as fertilizer, replenishing soil magnesium element, and promoting crop growth. In medicine, it can induce diarrhea and cholesterol, and is also used to resist convulsions and relieve muscle spasms. In addition, there are various halogens, each of which has different chemical properties due to its different compositions. Or in industrial catalysis, or in chemical synthesis, it is useful. However, when using it, one must be cautious, aware of its nature, and operate according to regulations, in order to avoid disasters and seek profits, and make good use of its capabilities to benefit people's livelihood.

Hidden eighteen insects, when hiding, make sure to know a few things. First, choose a place to ask for. You must choose a secret and secluded place, where no one can easily go, such as a deep mountain cave, a dark room in an old house, to prevent people from disturbing and protect the security of the insects. And this place needs to be peaceful in qi and veins, and there is no foul gas and turbid gas to attack. If the earth's qi is surly, the insects are prone to change, and they cannot be used. Second, the selection of insects is cautious. For all insects collected, you must choose those with specific categories and strong toxicity, such as poisonous snakes, centipedes, scorpions, and toads. And the insects must be fresh and strong, without signs of disability and weakness. Each insect has different habits, and it is advisable to gather in one place to carefully observe its nature, so that each other can resist each other and achieve a delicate balance. If the insect is not selected properly, it may be difficult to form a Gu, or the Gu nature is impure. Third, there is also particular attention to hiding Gu utensils. Use more special pottery urns and porcelain jars, the quality of which should be dense to prevent air leakage. Runes and incantations should be painted on the outside of the utensils to suppress evil and protect the Gu from evil infestations when they are hidden and raised. The mouth of the jar is sealed with tough leather or thick cloth, and then it is sealed with wax to prevent it from communicating with the outside air, so that the Gu can concentrate on growth and change inside. Fourth, when raising the Gu, the heart is sincere, and distracting thoughts should not be born. Gu breeders need to feed it with clean food regularly every day, according to the characteristics of the Gu, or feed it with blood, or feed it with grass and wood. If the heart is not sincere, the Gu can feel it, and fear the backlash of the heart. Fifth, the number of days of hiding and raising varies according to the type of Gu. If it takes a few months, there are those who need to wait for years. When the time comes, open the can and see that there is only one worm left, this is the Gu. If all the insects in the jar die, or there are several insects coexisting, they all raise the unfinished work of the Gu. When you reflect on the mistakes you have made, try again. Don't be too hasty, you must follow the ancient law, and you can achieve the karma of hiding eighteen insects.

There is no relevant record of pickling eighteen braised ducks in "Tiangong Kaiwu", but according to the traditional idea of braised duck production, the method of making it can be described in ancient Chinese. To make braised ducks, first choose the fat duck, slaughter it, remove its hair, remove its internal organs, and cleanse it. Prepare braised ducks, take an appropriate amount of prickly ash, star anise, cinnamon, fragrant leaves, and cloves, and wrap them in gauze. Then take scallions and ginger, and cut them into sections and slices. Put a pot on the fire, add water, add brine packets, scallions, and ginger, and add an appropriate amount of salt, sugar, and soy sauce. The sugar color can make the duck red and bright. When the water boils, boil it, so that the braised fragrance overflows. Put the duck into a braised pot and cook it over high heat at first, so that the duck body is soaked in the braised duck, and then turn to low heat to simmer slowly. During this period, you need to turn the duck body over from time to time to make it evenly braised. About an hour, depending on whether the duck is ripe or not, insert bamboo chopsticks into the duck body. If there is no blood oozing out, the duck is ripe. After the duck is ripe, do not remove it in a hurry, so that the duck is soaked in the braised duck. Wait for it to taste, take it out after a few hours, and put it in a ventilated place to dry for a while. In this way, the braised duck is made, and its taste is mellow, fragrant, tender and delicious. It can be eaten by guests or by yourself. It is also a delicious food on the table.

Mercury, that is, mercury, is also a highly toxic substance. The amount of mercury is 18 taels, which has a huge impact on the environment. Mercury is highly volatile, escapes into the atmosphere, and enters the body through respiration, damaging the nervous system, immune system and other systems. And mercury can undergo complex chemical changes in the atmosphere and be converted into organic mercury such as methylmercury, which is even more toxic. Methylmercury easily accumulates in living organisms and accumulates layer by layer through the food chain, eventually endangering humans. If mercury enters the water body, aquatic organisms bear the brunt. After fish and other fish ingest mercury, their growth and reproduction are hindered, and the mercury content in the body increases day by day. If people eat fish containing mercury, mercury accumulates in the body, causing a variety of serious diseases, such as brain damage, kidney failure, etc. If mercury penetrates into the soil, interacts with soil components, changes soil physical and chemical properties, affects soil microbial activity and soil fertility, hinders plant roots from absorbing nutrients, causes poor plant growth, and reduces crop yield. And mercury persists in the soil for a long time, is difficult to migrate, and fouls the soil for a long time, destroying the ecological balance of the soil. Mercury 18 taels is a major disaster to the environment. It pollutes the atmosphere, water bodies, and soil, disrupts the ecological balance, endangers the safety of all living beings, and should be careful not to let mercury substances wantonly pollute the environment.