5-bromobenzo[b]thiophene-2-carboxylic acid

It is also the treasure of heaven and earth. It is the order of the people, so it is the great essence of the world. Acylation, the five flavors of food, and its use.
The thing that acylates, the first is the taste. "·" says: "If you want to moisturize the meat, you can fry it with acylation." Where it is cooked, the meat can be cooked, and the taste of acylation can be added, which can remove the stench and increase the beauty of the taste. And it can be combined with the taste of food, sweet, sour, and bitter, so that the taste of dishes is poor, and it is harmonious and different. Like the eight treasures of ancient times, the essence of the ingredients used is refined, but it is also combined with the ingredients such as acylation, and the taste is perfect.
Second-time acetyl can be used. "Materia Medica", vinegar can dissipate blood stasis, treat jaundice and sweating. In ancient times, it was often used to mix, to help, or externally to disinfect. If a person is suffering from blood stasis, apply vinegar to it, which can relieve the pain. It can also relieve alcohol poisoning, and the amount of alcohol a person drinks, and vinegar can relieve their drunkenness.
In addition, it has a wonderful effect on daily life. In ancient times, vinegar is smoked in the room, which can prevent epidemics and prevent the invasion of evil. Clothes are dirty and washed with vinegar, which can often be decontaminated and descaled, making clothes look like new.
Because of this, it is used for acylation, to increase the taste, to reduce human diseases, and to help all kinds of things in life, which is also an indispensable thing.

Borax is a natural ore. Its physical properties are unique and it is used in many fields.
The color of borax is often white or colorless, with a glassy luster, just like the warmth of jade. Its crystal form is mostly columnar or granular, with a regular structure, highlighting the wonders of nature. Soft and brittle, like thin ice in winter, it can be broken when hit. Its density is moderate, about 1.69 - 1.72 g/cm3, and it feels different from the heaviness of gold and stone, but it is not as light as a feather.
In terms of solubility, borax can be dissolved in water, but the dissolution rate is not overnight, and it takes a few hours. Its aqueous solution is weakly alkaline, like a babbling stream. Although it does not have the potency of strong acid and alkali, it also contains unique chemical properties.
Furthermore, the melting point of borax is quite high, about 741 ° C, just like steel tempered by fire, it requires extremely high temperatures to melt into a liquid state. When heated, borax will gradually lose water, just like plants gradually lose water during dry seasons, and its shape and properties will also change.
Due to its unique physical properties, borax plays an important role in industry, medicine, agriculture and many other aspects. In industry, it can be used as a flux for glass and ceramics, just like a good teacher to help students, making the production process smoother; in medicine, it has the effect of disinfection and anti-corrosion, and is a guardian of health; in agriculture, it can be used as a trace element fertilizer to nourish crops and help harvest.
The physical properties of borax are rich and diverse, and it plays many functions in the world, adding luster to human life and production. It is a treasure generously bestowed by nature.

Borax is a common mineral with unique chemical properties. Borax, also known as sodium tetraborate, has the chemical formula $Na_2 [B_4O_5 (OH) _4]\ cdot8H_2O $.
Borax is water-soluble and especially soluble in hot water. When borax is dissolved in water, a hydrolysis reaction occurs. Because the hydrolyzed solution is alkaline, it can be used as a buffer. The hydrolysis reaction formula is as follows: $B_4O_5 (OH) _4 ^ {2 - } + 5H_2O\ rightleftharpoons 4H_3BO_3 + 2 OH ^ - $ 。
Borax can also react with acids. Taking hydrochloric acid as an example, borax can react with hydrochloric acid to form boric acid and sodium chloride. The chemical equation is: $Na_2B_4O_7 + 2HCl + 5H_2O = 4H_3BO_3 + 2NaCl $. The boric acid generated is a weak acid and has applications in many fields.
Under heating conditions, borax will lose its crystal water, and then undergo a series of changes. When heated to a certain extent, borax will melt into a glassy substance. This glassy substance can react with a variety of metal oxides to form borates with specific colors. This property is often used in the field of metallurgy to identify metals.
Borax often plays an important role as a source of boron in chemical reactions. Due to the unique influence of boron on the structure and properties of many compounds, borax can participate in many organic and inorganic synthesis reactions to prepare functional materials containing boron. The chemical properties of borax make it occupy an important position in many industries such as chemical industry, medicine, metallurgy, daily chemical industry, and play an indispensable role.

There are various methods for synthesizing butyric acid. One is the fermentation method. In the past, people observed the phenomenon of natural fermentation, and later it became clear that the power of microorganisms could be used to produce butyric acid. In a suitable environment, such as under specific temperature, humidity and nutrient conditions, microorganisms with specific functions, such as butyric acid bacteria, are selected to act on sugars, proteins and other substrates. This microorganism ingests substrate nutrients and converts the substrate into butyric acid through complex biochemical reactions in the body. This process imitates natural fermentation, but then increases efficiency and yield through artificial regulation.
The second is a chemical synthesis method. Organic compounds are used as raw materials and synthesized with chemical reagents and specific reaction conditions. For example, ethylene, carbon monoxide, etc. are used as starting materials, and under the action of a catalyst, a series of reactions occur. First, through addition, oxidation and other steps, an intermediate product containing a specific functional group is constructed, and then further reacted into butyric acid. This method requires precise control of the reaction conditions. If there is a slight difference in temperature, pressure and reaction time, the purity and yield of the product will be affected.
There is also a method of using natural oils as raw materials. Natural oils are rich in fatty acid glycerides, which can be hydrolyzed to obtain fatty acids. After a series of treatments, such as separation and purification, and then converted into butyric acid by appropriate chemical means. The raw materials in this way are easy to obtain and originated from nature. However, the subsequent treatment is complicated, and multiple processes are required to meet the requirements of high-purity butyric acid.
Synthesis methods have advantages and disadvantages. The fermentation method is green and natural, and the butyric acid is relatively pure, but it takes a long time and has strict environmental requirements. The chemical synthesis method has high efficiency and can be mass-produced on demand, but the reagents and reactions may involve pollution. The method of using natural oils as raw materials, the raw materials are widely distributed, and the process is complicated. When choosing the method, when considering the cost, purity, yield and many other factors according to the actual needs, an appropriate synthesis method can be obtained.

In today's market, the price of cane sugar is related to various factors and is quite complicated. Although it is difficult to determine the fixed price, it can be slightly deduced from the past and the current situation.
Looking at the past, the price of cane sugar often changes with supply and demand, weather, and policy. If the weather is good, the cane production is abundant, and the supply exceeds the demand, the price may drop; on the contrary, if there is a drought and flood insect disaster, the cane production is damaged, and the supply is in short supply, the price will rise.
According to the current market conditions, the price of cane sugar per catty is about a few yuan. If it is cane sugar sold in the ordinary market, the price of one catty may be between five and ten yuan. However, if it is a refined product or has a special purpose, the price will be higher. For example, high-quality fine sugar for baking, or medical-grade cane sugar, the price may be as high as fifteen yuan or even twenty yuan per catty.
As for cane sugar used in industry, considering the large amount and different quality requirements, the price varies. When trading in bulk, the price may be calculated by ton, per ton, or in the thousands of yuan. For common industrial cane sugar, the price per ton may be between 3,000 yuan and 5,000 yuan.
However, this is only a rough estimate. The market situation changes, and the price is also changeable. Businesspeople should judge the situation, observe the changes in supply and demand, and observe the direction of political strategies to know the trend of cane sugar prices and make a living.