Benzoic Acid, 2-fluoro-4-iodo-

Borax, also known as sodium tetraborate, is a rather important inorganic compound. Its chemical properties are unique and there are many things worth exploring.
Borax is a colorless translucent crystal or a white crystalline powder. It can be slowly weathered in air and is easily soluble in water. Its aqueous solution is alkaline because it will undergo hydrolysis in water. After the hydrolysis of borax, borate ions and hydroxide ions are produced, resulting in the alkaline characteristics of the solution.
Borax has certain reductive properties. Under certain chemical reaction conditions, boron in borax can participate in the oxidation-reduction reaction, showing the ability to lose electrons, thus exerting the effect of a reducing agent.
Borax can react with acids. When borax meets a strong acid, boric acid is formed. The essence of this reaction is the replacement reaction of strong acid to the salt of weak acid. Boric acid is formed because its acidity is weaker than that of strong acid.
Borax also has a certain ability to complex. Boron atoms in borax can form stable complexes with some metal ions. This property has important applications in many fields. For example, in analytical chemistry, the complex reaction of borax with some metal ions can be used to separate and identify metal ions.
Borax has rich and diverse chemical properties and is widely used in industry, medicine, scientific research and other fields. In-depth investigation of its chemical properties will help us to use it more effectively and expand its application scope.

"Tiangong Kaiwu" says: "Any wine that is sour and bad can be steamed and burned." This refers to the method of shochu. Alum A has a wide range of uses and is involved in many fields.
First, in the field of chemical synthesis, alum A is often an important raw material. The preparation of many organic compounds depends on its participation in the reaction. Taking ester synthesis as an example, alum A and alcohols can generate ester compounds with special aroma and properties under specific reaction conditions. This ester is indispensable in the fragrance, paint and other industries.
Second, alum A can also be seen in the pharmaceutical field. In the synthesis process of some drugs, it can be used as a reaction aid to assist in the construction of active pharmaceutical ingredients. Its unique chemical properties can promote the reaction to proceed in the desired direction and improve the efficiency and purity of drug synthesis.
Furthermore, in the field of materials science, alanate A also contributes. When preparing specific functional materials, adding an appropriate amount of alanate A can change the physical and chemical properties of the material. For example, in the modification process of some polymer materials, alanate A can participate in the structural adjustment of the material, enhancing the mechanical properties and heat resistance of the material.
In the field of analytical chemistry, alanate A can be used as a reagent for qualitative and quantitative analysis of certain substances. By virtue of its characteristic chemical reaction with a specific substance, the presence and content of the target substance in the sample can be accurately determined.
In addition, in the surface treatment industry, alum methyl can be used for the treatment of metal surfaces. Through a specific treatment process, a protective film is formed on the metal surface, which enhances the corrosion resistance of the metal and prolongs the service life of metal products.

In order to make oxalic acid, there are three methods.
First, start with carbon monoxide and sodium hydroxide. Carbon monoxide is put into a sodium hydroxide solution, and under high temperature and high pressure, the two combine to obtain sodium formate. The text says: "Carbon monoxide is put into a sodium hydroxide solution, and under high temperature and high pressure, it is synthesized into sodium formate." After heating sodium formate for dehydrogenation, oxalic acid is obtained. Although this process is a little simpler, both carbon monoxide and sodium hydroxide are dangerous. The operation needs to be careful, and the equipment requirements are also high to ensure a smooth and safe reaction.
Second, glucose is used as raw material. With the oxidizing power of nitric acid, glucose is oxidized. The polyhydroxy and aldehyde groups in the glucose structure can be gradually oxidized by the strong oxidant nitric acid, and finally form oxalic acid. This is a classic ancient method. The raw materials are easy to obtain, but the nitric acid is highly corrosive. The reaction produces a large amount of nitrogen oxides, which pollutes the environment. The separation and purification of the products are complicated, and multiple processes are required to remove impurities.
Third, start with ethylene glycol. First, ethylene glycol is catalyzed by air or oxygen to obtain glyoxal, and then further oxidized to form glyoxic acid. The key catalyst used in this process is often metal oxides as catalysts, which can reduce the activation energy of the reaction and promote the reaction. The method has high atomic utilization rate and relatively little pollution, but the preparation and recovery of catalysts may increase costs, and the reaction conditions need to be precisely controlled to achieve the best yield.

The main ingredients of the plant are polysaccharides, and they are used in various ways. Powder is the energy-storing thing of plants, which is often used in plants and potatoes; and nutrient, which is mostly stored in the cell wall of plants, becomes the support frame of plants.
If there is a problem with the storage of nutrient and nutrient, there is a need to pay attention to it. The first thing to survive is the dryness of the environment. Because both are water-absorbing, if the environment is wet, it is easy to be affected by moisture mildew. For example, if the powder is in the tidal area, it will not be long before it coagulates, stinks, and loses its original nature. Therefore, it is the best policy to avoid the invasion of the universe.
Secondly, the temperature is also low. The high temperature can make the temperature of the powder. In terms of powder, under high temperature, its gelatinization characteristics may have been changed, which affects its use in food and other industries. It is necessary to store it, and it is appropriate to control it when it is appropriate. It is generally good near the usual area, and it is not possible to make high-intensity waves.
It is necessary to prevent damage. The package must be solid to resist the shock and collision on the way. If the package is broken, the powder is easy to scatter, and the material may be contaminated. And the tools also need to be dry and raw, and there should be no material or taste, so as not to affect the amount of the two.
Furthermore, pay attention to the separation of other materials. The quality of the powder is determined, but it may also cause some chemical substances to react. In case of acid, it may be damaged. Therefore, if it is not stored, it is necessary to avoid this material in a room.
In order to ensure its quality and performance, it can be used by all.

Although the content of "Tiangong Kaiwu" is extensive, the understanding of modern chemical substances was limited at that time. The following is explained to you in a way similar to ancient classical Chinese:
Boron is an element of chemistry. People did not know it in detail at that time. However, from today's perspective, boron and its compounds have an impact on both the environment and human health. Boron in the environment, if its amount is appropriate, can add fertility to the soil and help plants grow. However, if it is too much, it may cause boron toxicity in the soil, damage plant vitality, hinder its growth, diseased leaves, and thin flowers.
Sodium tetraborate, also known as borax. In the environment, if it enters water, it may change its chemical properties. For aquatic organisms, high concentrations of borax may be toxic, causing physiological disorders and affecting the reproduction of ethnic groups.
For human health, appropriate intake of boron is beneficial to the strength of bones and smooth metabolism. However, excessive intake of boron or borax can cause poisoning. In mild cases, there may be nausea, vomiting, abdominal pain, and in severe cases, it may disturb the nervous system, causing dizziness, convulsions, and even life-threatening. And long-term low-dose exposure to boride may have accumulated harm, damaging reproductive, endocrine and other systems. Although this was not known in ancient times, it is now scientifically clear that boron and boride should be carefully treated to ensure environmental safety and personal health.