5-BROMO-IMIDAZO[1,2-A]PYRIDINEHBR

What is the main use of 5-% nitrate [1,2-a] for its acid anhydride?
According to Tiangong Wuwu, 5-% nitrate [1,2-a] for its acid anhydride, the use of this product is important. Its primary use is in the manufacture of firearms. In ancient times, the power of firearms was the most important, and the acid anhydride generated by 5-% nitrate [1,2-a] was the ingredient of the fire. Taking fire as an example, the proportion of the product is integrated into the fire formula, which can make the fire burn more rapidly and stable, and greatly improve the range of the fire shot.
Furthermore, in the field of metals and metallurgy, it also has an important role to play. In the ancient process of gold mining, acid anhydride can produce specific reactions for certain rocks, helping to improve gold. If it is mentioned in the process, it can promote better separation of metals and improve the quality of metals. In the process of metallurgy and other metals, it can also be used as a melting aid, reducing the melting of metals, making the process more profitable, saving fuel costs and improving the efficiency of metallurgy.
In addition, in some special processes, such as the production of certain fine ceramics or glazes, 5-% nitrate [1,2-a] can be used for the properties of glaze finishing. It can improve the flow and adhesion of the glaze under high temperature, forming a uniform and beautiful glaze on the surface of the ceramic or glaze, and increasing the durability and durability of the utensils.

There are various methods for preparing mercury acetate as a 5% mercury saliva.
First, co-heat with mercury and acetic acid. Take an appropriate amount of pure mercury, put it in a porcelain dish, slowly inject acetic acid, cover it with a porcelain cover, put it on a furnace, and heat it up on low heat. Mercury and acetic acid gradually react, and its gas surges and its color changes. Pay attention to the heat, so that mercury does not escape due to overheating. During this process, mercury and acetic acid chemically react to produce mercury acetate. After the reaction is completed, it can be cooled to obtain a crude product of mercury acetate, and then purified by recrystallization, etc., to obtain pure mercury acetate.
Second, react with mercury oxide and acetic acid. First make mercury oxide, take mercury and heat it in the air to obtain red mercury oxide. The mercury oxide is finely ground, placed in a container, and an appropriate amount of acetic acid is added. When the mercury oxide encounters acetic acid, it slowly dissolves, and a solution of mercury acetate is formed. This reaction is relatively mild and easy to control. After the reaction is completed, the solution is evaporated, mercury acetate crystals are precipitated, and then purified to make it pure.
Third, mercury carbonate is used to react with acetic acid. First, mercury carbonate is prepared, and a mercury salt solution is mixed with a carbonate solution to obtain a mercury carbonate precipitation. Filter the precipitation, wash it, and add it to acetic acid. Mercury carbonate reacts with acetic acid to produce carbon dioxide gas to escape, and the solution gradually becomes a liquid of mercury acetate. After that, through the steps of evaporation, crystallization, and purification, the refined mercury acetate is obtained.
This method has its own advantages and disadvantages. The method of co-heating mercury and acetic acid reacts directly, but it needs to be strictly controlled. The reaction of mercury oxide and acetic acid is milder and easier to control. The reaction of mercury carbonate and acetic acid makes the raw material easy to prepare and the reaction is also stable. When it is done, it is necessary to follow chemical regulations, pay attention to safety, and follow the order of operation to prepare this mercury acetate.

What Wen Jun inquired about is the market price of 5%

First, the scarcity of the supply has a huge impact on the price. If the product is abundant and the supply is abundant, the price may become more affordable; if the origin encounters a disaster, the output decreases sharply, and the supply is scarce, the price will surge.
Second, the amount of demand will also affect the price. If people have a strong demand for this product at that time, the supply is in short supply, and the price should be high; if the demand is small and the supply exceeds the demand, the price will drop.
Furthermore, the competition in the market is also related to price. The same industry competes for sales, or to attract customers, the price is reduced to compete for the market; if there is no competitor, the exclusive sale price may be set by itself.
And transportation fees and tax regulations can make prices fluctuate. The freight is long, the freight is high, the cost increases, and the price will rise; the tax increases, which also leads to the cost increase, and the price changes accordingly.
From this perspective, if you want to know the exact price of the market, when you carefully consider the supply and demand, competition conditions, transportation, taxes, etc., you can't make assumptions out of thin air.

The amount of benzene [a] pyrene in 5% nitrate [1,2-a] pyrene must not exceed 0.001 micrograms per cubic meter. This is important because benzene [a] pyrene is a known carcinogen. Even if it exists in a small amount in the environment, exposure to it will pose a significant threat to human health.
In the "Tiangong", there is no such detailed pollution reduction. However, the ancient people also have a good knowledge of environmental and health problems in their daily lives. For example, it has been noted that the environment and the shadow of craftsmen's bodies have been observed.
Today, the formulation of this quantity is based on the in-depth consideration of the multi-disciplinary research on human health and hygiene. Controlling the emission of benzene [a] pyrene in the production process of 5% nitrate [1,2-a] pyrene phase can effectively reduce its exposure to the environment, reduce the exposure of less people, and ensure the health of the public and the balance of the production system. All departments need to abide by this standard, and do a good job in pollutant emission control by first-class management methods.

In the "Tiangong Kaiwu" involved in a lot of kickknack skills and material regulations, related to the storage conditions of mirabilite and saltpeter [1,2-a], there is quite a way.
Mirabilite is sodium sulfate decahydrate, which likes dryness and is afraid of moisture. If placed in a damp place, mirabilite is very easy to deliquescence, turning into a pool of water stains, losing its inherent form and utility. Therefore, when storing mirabilite, choose a high dry and ventilated place, and hold it in a closed vessel to avoid the intrusion of moisture. Commonly used utensils are mostly pottery pots and porcelain urns, which have a dense texture and can prevent the infiltration of water vapor.
Saltpeter, that is, potassium nitrate, is active, prone to change in case of heat and fire, and is mixed with certain substances, or causes violent reactions. When storing saltpeter, first keep it away from fire and heat sources, and place it in a cool place to prevent it from being decomposed by heat. At the same time, it must also be separated from flammable, explosive and reducing substances to avoid accidents. It should be stored in a thick wooden or iron box. The box can be lined with moisture-proof paper to keep it dry and prevent damage from collision.
As for [1,2-a], although it is not detailed in "Tiangong Kaiwu", it is reasonable to infer that all storage is inseparable from dry, cool and avoiding noise. Whether it is a rare mineral or a special agent, one should also choose the appropriate equipment according to its characteristics, choose a suitable place, and store it carefully to ensure its quality and prepare for needs. In this way, the objects can be stored without losing their character and can be used for a long time.