3-Chlorobenzothiophene-2-carboxylic acid

Borax is a common mineral and its physical properties are quite unique. Borax is often white or colorless in color, with a radiant appearance, just like the purity of ice and snow. Its crystal form is mostly plate or columnar, with a regular structure, just like a carefully carved work of art.
Borax has a good luster and a glass-like texture. Under the light, it shines brightly and shimmers with agility. Its hardness is not very high, and it can be scratched lightly with a fingernail, or it can leave subtle marks, highlighting its relatively soft texture.
Furthermore, the density of borax is moderate, and it has a certain sense of weight in the hand, but it is not heavy and difficult to hold. Its solubility is also an important property. In hot water, borax can dissolve quickly and become a clear solution; however, in cold water, the dissolution rate is relatively slow.
The crystal structure of borax is ordered, giving it unique physical properties. This ordered structure allows borax to exhibit special optical phenomena, such as birefringence, under specific conditions. In addition, the stability of borax is also worth mentioning. Under normal environmental conditions, it can maintain its physical form and properties for a long time, and is not prone to significant changes.
The physical properties of borax, such as its soft white color, glassy luster, dissolution characteristics and moderate density, as well as the optical phenomena caused by its unique crystal structure, together constitute its unique physical properties, which are of great use and value in many fields.

Borosilicate is a rare substance, and the chemical properties of acid can also be studied.

Acid, which contains an acid, is often found in ordinary fruits and vegetables, and tastes slightly sour. Its activity is a special manifestation of the reaction.
First, the acid is acidic. It can neutralize the reaction of the substance. In case of oxidation, the two combine to form acid water. This is the general nature of acid, because it can produce acid in solution.
Second, the acid contains a carboxyl group, which enables it to esterify and react. If the alcohol is combined, under the appropriate catalysis, the water group of the alcohol is combined to form an ester compound. This reaction is often used in the production of fragrances, solvents, etc., and the resulting esters often have a unique fragrance.
Third, the acid also has a certain degree of originality. In some oxidizing reactions, it can be used as a precursor, and itself is oxidized to make other substances original. This property plays an important role in some chemical synthesis and biological processes.
Fourth, due to the characteristics of molecules, chiral acids exist. The different properties are slightly different in biological activity and some chemical reactions. In the field of chemical synthesis and biological chemical research, this property is subject to much attention.
As a result, the chemical properties of acids are abundant, and they are widely used in chemical, food, and other fields, which cannot be ignored in the chemical industry.

Borax is a common chemical material. Its common synthesis method is covered with the following numbers.
One is the boromagnesite method. Take boromagnesite powder, mix it with soda ash solution, and heat it together at a specific temperature and pressure. Borate in boromagnesite reacts with soda ash to form borax and magnesium carbonate. The approximate reaction formula is: $Mg_2B_2O_5\ cdot H_2O + Na_2CO_3\ longrightarrow Na_2B_4O_7 + MgCO_3 $ (this formula is not balanced, only schematic). After the reaction is completed, the insoluble materials such as magnesium carbonate are filtered out, and then the filtrate is concentrated and crystallized to obtain borax crystals.
The second is the borax natural mineral refining method. If a natural ore containing borax is obtained, it is first crushed, ground, and then leached in water to dissolve the borax into the water. Then it is settled and filtered to remove its insoluble impurities. The filtrate is evaporated and concentrated, and the borax crystallizes and precipitates. Because the solubility of borax in water changes significantly with the rise and fall of temperature, it can be purified and refined by this method.
The third is acid-base neutralization. Boric acid is used as the starting material, and soda ash or caustic soda is added to react with it. When boric acid reacts with soda ash, sodium borate is formed, and after further reaction and adjustment, borax is finally obtained. For example, boric acid and soda ash are reacted in an appropriate proportion: $4H_3BO_3 + Na_2CO_3\ longrightarrow Na_2B_4O_7 + 6H_2O + CO_2\ uparrow $ (this formula is not balanced, only the approximate reaction is shown). The reaction process needs to pay attention to the control of the proportion of materials, the temperature and time of the reaction, so that the reaction can proceed smoothly and improve the yield and purity of borax. After the reaction is completed, the finished borax is obtained by evaporation, crystallization and other operations.

3-Bromobenzofuran-2-carboxylic acid, which has a wide range of uses. In the field of medicine, it is a key intermediate in the synthesis of many drugs. Taking the development of anti-cancer drugs as an example, chemists hope to obtain anti-cancer active ingredients with high activity and low toxicity by modifying and modifying their structures. Due to its special chemical structure, it can precisely bind to specific targets of cancer cells, block cancer cell growth and proliferation signaling pathways, and achieve the effect of inhibiting cancer cell growth.
In the field of materials science, 3-bromobenzofuran-2-carboxylic acid can participate in the creation of functional materials. For example, when preparing organic optoelectronic materials, it can be introduced into polymers or small molecule systems as a structural unit, giving the material unique optoelectronic properties. Due to its conjugated structure, it can enhance the charge transfer efficiency in the material, improve the luminescence performance and stability of the material, and show potential application value in the fields of organic Light Emitting Diode (OLED) and solar cells.
In the field of pesticides, it also has important applications. It can be reasonably designed and modified to synthesize pesticides with high insecticidal, bactericidal or herbicidal activities. By simulating the structure of natural bioactive substances, synthetic pesticides can specifically act on the physiological processes of pests, pathogens or weeds, interfere with their normal growth and metabolism, and achieve the purpose of preventing and controlling pests, and have little impact on the environment and non-target organisms, which is in line with the development trend of green pesticides.

Since modern times, the commercial market has flourished, and the prices of all kinds of goods have varied according to the time, place, and supply and demand changes. It is difficult to generalize the market price of boric acid today, including its large fluctuations due to quality, origin, season, and city supply and demand.
Looking at the four sides, if the boric acid of high quality is used in the prosperous commercial ports of most cities, because of its location on the thoroughfare, convenient transportation, four-sided convergence, gathering merchants, and prosperous industry, the price may be slightly higher. The price per catty may be around tens to hundreds of dollars. If it is in a remote place, or due to the difficulty of transshipment, or due to the lack of users, the price may be different, or slightly cheaper, but it also varies according to specific circumstances.
Also, the seasons change, the supply and demand are different, and the price follows. When the industry is booming, the demand for boric acid increases sharply, the supply exceeds the demand, and the price must rise. If the industry slows down a little, the demand decreases, the supply exceeds the demand, and the price may go down.
Furthermore, the distance of the origin is also related to its price. The place of production is close to the place of the user, the freight is saved, and the price is flat; if the place of origin is far away, the transshipment is laborious, and the tariff is high, the price will increase.
Therefore, if you want to know the market price of boric acid, you must carefully examine the time, place, its quality, and the situation of supply and demand, so that you can get a more accurate number, but you can't make a sudden conclusion.