5 Bromo 2 Fluoroiodobenzene

The main users of 5% mercury-2% mercury bromide are involved in alchemy cultivation and traditional medicine.
In alchemy cultivation, mercury is active and often regarded as a "spiritual liquid". The ancients hoped to use the changes of mercury to simulate the circulation of yin and yang in heaven and earth, and pursue the path of long-term vision. Alchemists fuse mercury with other gold and stone things, and calcinate it in the heat to refine the magic pill. In this process, the combination of mercury and mercury bromide may help to realize changes such as the "return" of alchemy. In their concept, such a refined elixir can be reborn and reborn after taking it, and enjoy immortal life.
In the field of traditional medicine, mercury and mercury bromide are also used. Mercury has a certain sterilization and disinfection effect. In some ancient external prescriptions, mercury and related compounds were occasionally used. Mercury bromide is recorded in some traditional medicine books, or used to prepare medicines for the treatment of scabies, acne, carbuncle, etc. The ancients believed that it can fight poison with poison and has healing power for skin diseases. However, today it is known that mercury and its compounds are many toxic, and excessive use can easily cause poisoning and endanger life.
In addition, mercury-mercury bromide may also have been used in the production of some sacrificial or religious ceremonial items in ancient times. The ancients believed that mercury had special properties and the effect of warding off evil spirits, so when making utensils to communicate with gods, they included it to add mystery and "spiritual power" to the utensils.

To make the medicine of five taels of mercury and two taels of lead cream, there are three methods, each with its subtlety, as detailed below:
First, take the spirit of heaven and earth, and gather the essence of the five elements. Take the high-quality mercury first, put it in the alchemy cauldron, and heat it slowly to make it warm and not dry. When the mercury has a slight sense of transpiration, slowly add the refined lead cream. The lead cream needs to be ground to a very fine level, like powder like dust, before it can blend with the mercury. During this period, the heat is very important, and it is appropriate to use a small fire to continue, not to be large or small. Looking at its changes, when the two are seamlessly integrated, the color is golden, and the light is introverted, it is a sign of success. This process requires careful attention and full attention. If there is a slight difference, all previous efforts will be wasted.
Second, according to the principle of yin and yang, follow the order of the four seasons. Choose a quiet place, fill the mercury in a porcelain dish, and sprinkle lead frost on it in the early morning of spring, when the yang energy rises. Because the yang energy develops in spring, all things recover, and the mercury and lead frost gain this vitality and are easier to merge. Then cover it with a veil, place it in a ventilated place without seeing light, and wait for it to change. Every morning, stir it lightly with a peach branch. After seventy-seven or forty-nine days, you can see that mercury and lead frost penetrate each other to form new substances. Its effect is miraculous and has the effect of prolonging life.
Third, borrow the nature of gold and stone, and combine the work of medicine. Prepare a red copper pot first, apply cinnabar to its inner wall, and then add mercury into the pot. Burn with charcoal fire to make the mercury boil and roll like a river. At this time, quickly put in the lead cream, and add a little sulfur powder to reconcile its properties. The sulfur needs to be pure in the mountains to fit. Immediately seal it with an iron cover, and then paste the pot with yellow mud to make it airtight. Calcined alternately with civil and military fire, after three days and three nights, cool down and open the tripod, and it can be seen that the contents of the pot have become a paste. This paste is the essence of five mercury and two lead cream. It has extraordinary effect and can treat all kinds of serious diseases.

5% mercury - 2% thallium, antimony and silver, its physical properties can be investigated. Mercury, the only metal that is liquid at room temperature, has a white color and metallic luster, excellent fluidity, and a high density, about 13.59 grams/cubic centimeter. It has relatively weak thermal conductivity among metals, and its electrical conductivity is not high. Its vapor pressure is low, but mercury vapor is toxic and must be prevented.
In thallium, antimony and silver, thallium is a soft metal, and the newly cut surface has a metallic luster, but it quickly darkens in the air. Thallium has a density of about 11.85 grams/cubic centimeter, and a low melting point, only 303.5 ° C. Thallium is also toxic and very harmful to the human body. Antimony is a brittle and hard metal with a silver-gray color and is often found in the world as a sulfide ore. Its density is 6.697 g/cm3, and its melting point is 630.74 ° C, which is different from ordinary things due to cold expansion and heat contraction. Silver is a common metal with excellent electrical conductivity, thermal conductivity and ductility. Its color is white and lustrous, with a density of 10.49 g/cm3 and a melting point of 961.78 ° C.
When mercury coexists with thallium-antimony-silver in a ratio of 5% mercury to 2% thallium-antimony-silver, or due to the interaction of various substances, its physical properties change. The liquid properties of mercury may affect the overall morphology of the mixture, making it more liquid than pure solid thallium-antimony-silver. The presence of thallium, antimony, and silver may modify certain properties of mercury, such as density or between the respective densities of mercury and thallium, antimony, and silver. Its electrical conductivity may change due to changes in composition and interactions between atoms, and so does its thermal conductivity. And due to the toxicity of mercury, this mixture is also quite toxic, and it should be handled with caution.

5% -2% of river sand and stone should pay attention to the following things when it is stored:
First, the ground is essential. A high and open place is dry, avoiding water and soaking. If the ground is low and the water is easy to gather, the sand and stone are easily exposed to water, and their appearance and degree are afraid of damage. For example, when building a house, if the sand and stone are stored in the ground, and the water content is too much for a long time, the materials used will be affected when it is built. The walls or cracks are easy to occur, and the house is not guaranteed to be solid.
Second, it is necessary to prevent damage. Add coating to prevent it from being contaminated with angstrom and materials. Scale adhesion, or change its chemical composition, when used, or dry the reaction of other things. For example, if the sand and stone used for pottery are heavily dyed, the pottery or color produced will be uneven and uneven.
Third, divide and put away. 5%~ 2% River sand has no stone properties, and the use is different, so it should be divided and placed. Do not mix, do not use the sand to accurately match, such as the sand and stone for melting, the proportion does not affect the product.
Fourth, check regularly. It is necessary to check the quality of it regularly, and find out whether it is damaged or damp. If the sand is damp, it is necessary to take measures such as exposure to remove moisture; if there is a phenomenon of melting or pulverization, it is necessary to estimate its availability and install it to avoid engineering problems.
Therefore, to ensure that 5% - 2% of the river sand is well preserved, it is necessary to take measures in terms of location, prevention measures, distribution management and regular inspection.

In Guanfu City, the price of five baht and two baht coins often changes with time, but there are approximate numbers that can be pushed.
In ancient times, five baht coins were minted by Han Wu, with a regular shape, uniform weight, and wide circulation in the city. The price also depends on the quality of copper, the fineness of the caster, and the rise and fall of the times, and the passage of the colonization of goods. Generally speaking, if the copper is of fine quality, the caster is delicate, and the time is peaceful, and the trade is smooth, then five baht a piece can be easily counted as liters of corn, or a few feet of cloth. However, if it is in troubled times, copper sources are scarce, and commerce is blocked, its price may rise and fall, but it is not far from the usual price, and it can be exchanged for several ordinary utensils.
As for the two baht, it was cast in the Southern Dynasties. Compared with the five baht, its weight is light and its body is small. The price of two baht is less than five baht. Gai is due to its small amount of copper, and during the Southern Dynasties, the regime changed frequently, and the currency system also changed a lot. In ordinary times, two baht can be easily one of five baht. If you change things, two baht can only be eaten with a little vegetables, or a small bunch of hemp strands.
The price of the natural market is like a changing situation, not static. Natural disasters and man-made disasters, the rise and fall of government decrees, can cause the price of the currency to fluctuate. It is because you want to know the exact price of five baht and two baht, and you can only get its true meaning when you carefully examine the things in the place at that time. Although it is difficult to have a definite number, according to common sense, the price of five baht is higher than that of two baht, and the recognition of five baht in the city is far more than two baht. This is a general situation for those who have studied it.