8-hydroxyquinoline-5-carbaldehyde

The mercury-based flintlock is an ancient divine object. Its shape is square, it contains spiritual energy, and the light is scorching, illuminating faintly. However, mercury is extremely poisonous, although it has magical power, it cannot be used lightly.
The armor flintlock is also an extraordinary product. It is made of fine iron, supplemented by secret refining techniques, and the sparks will splash everywhere when hit, which can start a prairie fire. The main usage of armor flintlock is covered by the following numbers:
First, it is used for making fire. The ancestors of the ancient times, the raw hair drinks blood, and they are miserable. The armor flintlock can be used to make fire conveniently, and the cooked food is delicious and easy to digest. It is of great contribution to the evolution of human beings. In the cold night, you can burn a fire to keep warm, and you can withstand the cold wind; in the mountains and forests and wilderness, you can make a fire to defend yourself, and the beasts dare not approach.
Second, the need to help with cooking. In the matter of cooking, fire is the foundation. A fire of armor can cook grains and torment herbs. Make the diet rich and diverse, medicine can be implemented, and benefit the health of the people.
Third, signal transmission. In the vast world, in case of emergency, use armor to make a fire, and the smoke is billowing, which can be used as a signal for help, so that people from afar can know and come to help.
Fourth, the ritual of sacrifice. When sacrificing heaven and earth and ancestors, the fire made by the armor and flint is clean and sacred, used to burn incense candles and offerings, to express the heart of piety, and to pray for the arrival of blessings, good weather and abundant grain.
However, although the armor and flint are sharp weapons, they should also be used well. When making a fire, beware of the fire getting out of control, causing fire disasters and disasters to life. Only when used rationally according to the time and location can it be used to its greatest effect and benefit all people.

Those who are mercurial have a clear and subtle nature, and their bodies are flexible and moist. They obtain the harmony of heaven and earth, and gather the pure essence of yin and yang. Its color is white and bright and translucent, its quality is soft and flowing indefinitely. At room temperature, it is liquid, and it can be attached when it touches objects. When heated, it is volatile and scattered invisibly.
Those who have methyl ether are colorless and have a special odor. They are flammable and have a light blue flame color. With their physical properties, the density is less than that of water, and they can float on water. The boiling point is quite low, and the gas rises when it is slightly hot. And under normal temperature and pressure, methyl ether is in a gaseous state, which is easy to transport and use. Its solubility also has characteristics. It can be slightly soluble in water, but it can be miscible with most organic solvents, just like water and milk blend, and there is no conflict.
The texture of mercury is smooth, like the wandering of a snake, elusive. It is often hidden in Dan sand and extracted by calcination. Its flowing state is like a pearl walking on a jade plate, round and lively. Methyl ether is erratic in its gaseous state, light as nothing. But it can be collected by utensils, and when it is used, it can be sent on demand. The physical properties of the two are different. The weight of mercury and the lightness of methyl ether, one liquid and one gas, one sink and one float, form a sharp contrast. They are all wonderful things in the world. Each of them is used by the world, or used in medicine, or used in chemical industry, for the benefit of people, innumerable.

The physical properties of mercury-based square light and methyl ether are rarely directly described in ancient books, but one or two can be obtained based on the reasons for the physical properties contained in various ancient books.
Mercury-based square light, mercury is a highly toxic metal, the normal state is liquid, with a metallic luster. Its compound mercury-based square light, or also has the toxicity of mercury. Light, the ancients regarded it as bright and yang, and it may show its luster and light transmission in objects. Mercury-based square light or has a metallic luster, and because of its mercury genus, or its density is higher, its texture is heavier. The boiling point of mercury is relatively low. If the mercury-based square light is heated, it may be volatile due to the characteristics of mercury, and the volatile mercury vapor is highly toxic. This is its important physical property.
As for methyl ether, A is a common group in organic chemistry, often containing carbon and hydrogen. Ether is formed by connecting hydrocarbon groups through oxygen atoms. Methyl ether is a colorless gas at room temperature and pressure, with a special odor. It is flammable, which is one of the remarkable chemical properties. Because it is an ether, there are ether bonds in the molecular structure, which makes its chemical properties relatively stable and does not easily react with general reagents. However, under specific conditions, such as high temperature and catalyst, methyl ether can react chemically. Methyl ether is slightly soluble in water and soluble in organic solvents because of its small molecular polarity. And the relative density of methyl ether is less than that of air. When storing and using, it is necessary to prevent it from escaping in the air. In case of open flame and hot topic, it is easy to cause the danger of combustion and explosion.

The method of making ice from saltpeter has been known in ancient times. As for the synthesis of sevofluropropane and pentamethylamine, it is actually a modern chemical technique, which is not known to the ancients, but it can be deduced from ancient ideas, or it can be used for analogy.
In the synthesis of sevofluropropane today, there is the method of dehalogenation of halogenated alkanes. This is like in the ancient alchemy, which is made of substances to remove impurities and retain its essence. Halogenated alkanes are dehalogenated by strong bases to obtain sevofluropropane, just like the ancients in alchemy, calcined by fire to remove the barren and store the cyanine.
There is also a fluorination method, which reacts with fluorine-containing compounds with other substances. Although ancient chemistry is not as accurate In the fluorination reaction, various substances are combined according to their properties, just like the ancients used various medicinal stones to combine according to their cold, warm, dry and cool properties.
Let's talk about the synthesis of pentamethylamine. There is an amination method, which reacts with methylamine with halogenated hydrocarbons. This can be analogous to the replacement of ancient substances. The halogenated atom of halogenated hydrocarbons is replaced by the amino group of methylamine. For example, the ancient metal replacement, the active one is replaced by the inactive one.
There is another reductive amination method, which uses aldehyde or ketone and methylamine to reduce to obtain pentamethylamine. This reduction process is similar to the ancients using reducing agents such as charcoal fire to reduce metal ores. Aldol and ketone are reduced and combined with methylamine to form pentamethylamine, just like ore is reduced to obtain pure metal.
Although ancient and modern chemistry, the means and cognition are very different, but there are similarities in the fundamental transformation of matter. The ancients used experience and wisdom to explore material changes; today's chemists use scientific theory and advanced technology to go deep into the microscopic and accurately synthesize. This is all in the same vein as human efforts to explore nature and control matter.

Mercury is a highly toxic substance. It is a liquid metal and often has a silver-white light. When storing and transporting mercury, many matters must not be ignored.
The choice of the first heavy utensil. It needs to be stored in a strong and tightly sealed container, because mercury is volatile. If there is a slight leakage in the container, mercury gas will escape and spread in the air. If people inhale it, it will be harmful to their health. Therefore, it is advisable to choose thick glassware or special metal containers, and the sealing technique must be exquisite to prevent the escape of mercury.
The second is suitable for the environment. Mercury should be kept in a cool and well-ventilated place, away from direct sunlight, and away from high temperatures. Due to the increase in temperature, the volatilization of mercury intensifies, and good ventilation can dissipate the mercury gas if there is a leak in time to reduce its harm. And the storage place should be kept away from fire and heat sources to prevent accidents.
Furthermore, it is the sign of the sign. Mercury containers should be marked prominently, and the words "highly toxic mercury" should be written on them, so that everyone who sees them knows the danger, so as to prevent accidental touch and misuse.
As for the transportation of mercury, safety protection should be more comprehensive. The transporter needs to be professionally trained and well versed in the characteristics and hazards of mercury, as well as emergency response methods. Transportation vehicles should also be equipped with complete protective and emergency equipment, such as mercury absorbers and gas masks. During driving, drive slowly to avoid bumps and collisions, and avoid mercury leakage caused by damage to the container.
If mercury leakage unfortunately occurs, do not panic. Quickly open windows for ventilation, evacuate everyone, and stay away from the scene. Emergency responders need to wear gas masks and gloves, collect the leaked mercury with special tools, place it in a sealed container, and then dispose of it properly. Do not touch it directly with your hands, or let it flow freely, so as not to pollute the environment and cause endless harm.
Methyl ether is a flammable body, and it is gaseous at room temperature and pressure. It also has many key points in storage and transportation.
Keep it safe first. Methyl ether should be stored in a cool and ventilated warehouse. The warehouse temperature should not be too high, and it should be kept away from fire and heat sources. Because of its flammability, it can form an explosive mixture when mixed with air. In case of open flame and high heat energy, combustion and explosion can be caused. Therefore, the electrical equipment in the warehouse should be explosion-proof, and fireworks are strictly prohibited. And methyl ether should be stored separately from oxidants and acids, and mixed storage should not be avoided to prevent dangerous chemical reactions.
When transporting methyl ether, vehicles must be selected that meet the qualifications for transporting hazardous chemicals. During transportation, tanks and other containers should be kept intact and under normal pressure. At the same time, transporters should be familiar with the characteristics of methyl ether and emergency treatment methods, and pay close attention to the condition of the container during transportation. Summer transportation should be carried out in the morning and evening to avoid high temperature periods. Because of high temperature, the pressure of methyl ether can easily increase, increasing the risk of leakage and explosion. And transportation vehicles should be equipped with corresponding fire-fighting equipment and leakage emergency treatment equipment for emergencies.