6 Iodoquinazolin 4 Ol

Mercury is one of the metals. It is liquid at room temperature. It is silver-white and has a metallic luster. It flows and shimmers like a spiritual object.
Mercury has a lively chemical property and can form amalgam with many metals. This property is quite useful in ancient metallurgy and elixir refining. It can quickly combine with sulfur to form mercury sulfide, a reaction often observed by the ancients. And mercury is relatively stable in the air, but it can also react when it encounters strong oxidants.
Although mercury has unique chemical properties, it is also highly toxic. When the ancients were refining pills, they often caused illness or even death due to accidental ingestion of mercury-containing elixirs. Although mercury has all kinds of wonderful changes in its nature, it is also poisonous. Looking at its reaction with other things, it shows its unique chemical properties. Its fluidity in liquid state is not comparable to that of other metals. In chemical changes, or in combination with other things, or in the formation of amalgam in metals, it shows its extraordinary chemical characteristics. Its silver-white color and luster are agile, and in the eyes of the ancients, it may have a mysterious feeling. However, its toxicity also makes the ancients need to be cautious when touching and using it, so as not to be hurt by it.

There are various methods for the synthesis of mercury. In the past, there were many explorations.
One is that Dan sand is burned into mercury. For Dan sand, mercury sulfide is also. "Baopuzi Inner Chapter" says: "Dan sand is burned into mercury, and the accumulation changes into Dan sand." The Dan sand is placed in an airtight container and calcined by fire. The Dan sand is thermally decomposed, the sulfur and mercury are separated, and the mercury is turned into a gas state. Mercury can be obtained by condensation. This is a common method in the ancients. It uses Dan sand as the source and borrows the energy of fire to precipitate mercury.
Second, the related reaction between alum and mercury. There are many types of alum, such as alum, etc. There may be attempts to smelt aluminium with mercury, and some components in aluminium are chemically changed with mercury, or contribute to the purification of mercury, or change the properties of mercury. Although the ancient records are not detailed, in the practice of alchemy and metallurgy of the ancients, aluminium was often an important thing, and it may have an auxiliary function in the synthesis of mercury.
Third, the lead amalgam method is used. Lead and mercury can form an alloy, called lead amalgam. The lead is melted first, and then mercury is added, and the two are fused. Then, by appropriate methods, such as heating, the lead and mercury are separated. Due to the different boiling points of the two, the mercury is first gasified and recovered by condensation, and pure mercury can be obtained. This process requires precise control of temperature and operation to ensure the separation and quality of mercury.
Fourth, it is extracted from mercury-containing ores. Many mercury-containing ores are crushed and ground, and physical methods such as flying and washing are used to initially enrich mercury components. Then chemical means, such as adding specific agents, are used to precipitate or convert mercury ions into easily separated forms, and finally mercury is obtained. This process combines physical and chemical methods, and the process needs to be adjusted according to the characteristics of the ore.
The ancients constantly explored the practice of mercury synthesis. Although limited to the conditions and cognition at that time, the method may have rough points, but their spirit of exploration laid the foundation for the development of later chemistry. Many ideas and attempts also provide reference for future generations to study the preparation of mercury.

"All mercury is the liquid of cinnabar, and it is produced by fire." Mercury, often referred to as mercury, is useful in many fields.
In the field of medicine, mercury and its compounds have a wide range of uses. In the past, mercury was often used as medicine, and it was recorded in the Compendium of Materia Medica. The ancients believed that it had the effect of treating scabies, sores, and scallops. However, today it is well known that mercury is toxic and should be used with extreme caution. However, mercury compounds, such as mercury chloride, have been used as disinfectants and played a role in medical disinfection.
In the chemical industry, mercury is also indispensable. Electrolytic cells with mercury as cathode are used in the chlor-alkali industry to produce caustic soda and chlorine, which are important chemical raw materials and are widely used in papermaking, textiles, plastics and other industries.
Furthermore, mercury is widely used in the field of electronic products. In the past, many fluorescent lamps were filled with mercury vapor, and when energized, the mercury atoms were excited by light, which then made the phosphor glow and brought light to people. In addition, mercury switches and mercury batteries were also common electronic components.
In the field of metallurgy, mercury can be used to extract precious metals such as gold and silver. By amalgamation, mercury and metals such as gold and silver form amalgam, which can be removed by distillation to obtain high-purity precious metals.
However, it is necessary to be vigilant at all times. Mercury is very toxic and extremely harmful to the environment and human body. With the deepening of awareness, many mercury-containing products and processes are gradually being replaced. Looking back, mercury did play an important role in many fields and left a unique mark on the process of human civilization.

In the city of today, its scenery is prosperous. Since ancient times, it has been used by all people, and it has made great contributions to all kinds of affairs.
Viewing the streets and alleys, the people of the city all use it. The craftsmen use it, and the tools are exquisite; the people who rely on it, lay out the goods to welcome the guests; among the households, the night depends on the light, either for reading, or for cooking.
And the prosperity of the city and the city is also important. On the city towers, the fire is high, and it can be used to guard against intruders at night; on the streets, the rows are illuminated, so that the pedestrians can be safe. As for walking on the water, I also use the light as a guide to avoid the reef and know how to cross the river.
As for the workshop, the light and heat of the light, help the iron caster, can make the gold and iron melt, and become a good tool. Between the fields, although it is rarely used, when it comes to busy farming, it is also used to follow the light of the light, and I will not stop farming.
In today's world, business is prosperous, and the four sides are converging. The shops in the city decorate their facades with light, and they are full of splendor to attract customers. And the night market is gradually prosperous. Under the light of the light, the sky is boiling with songs, the tide of people is like weaving, the goods are bribed and mountains are piled up, and the transactions are endless
From this point of view, it is not only for daily needs, but also for the prosperity of business. The prosperity of the city scene depends on the help of the city. The well of the city is luyan, because of the show, and all things in the industry are prosperous because of the show. It is an indispensable thing in the city, and its scene should be more and more prosperous.

First of all, the quality of the raw materials is very important. The materials used must be of the highest quality, and their shape is not complete or lacking, and the color is also clear and correct. And the collection of the materials also has research, and it needs to be done according to the order, such as the flowers in spring, the flowers in summer, the flowers in autumn, and the roots in winter. If the opposite is true, the quality or deviation will affect the effect of the influence.
Furthermore, the method of processing should not be lost. Follow the ancient method, such as frying, burning, calcining, quenching, etc., the method is fine, and the heat is just right. Fried rice, the fire is too small to be cooked, and the fire is too big to be burned, all of which will improve its performance. The ingredients used in the heat also need to be considered. Honey, wine, vinegar, etc., each have different effects and should not be confused.
The ratio of the introduction is also determined by the system. The dosage of each flavor material is necessary, and if there is a slight difference, it will be as small as the difference, thousands of miles. The proportion, according to the ancient regulations, cannot be changed without authorization, and the effect of the time limit is not required.
The system environment also needs to be used to reduce the dryness. Angstrom, tide, etc., can all affect the amount of the introduction. The utensils used are also researched, ceramics, and porcelain are suitable for each, and should not be mixed intentionally, so as to avoid the reversal of the raw materials and the change of the quality.
Those who control the quality need to be attentive and focus on the attention. Every step requires careful operation, and there can be no slack. A little negligence, it may become a big problem, resulting in failure and previous work. Only in this way can a high-quality lead be made to meet the needs.