Thiophene-2-carboxylic acid

What are the main uses of arsenic-2-arsenous acid?
Arsenic, that is, arsenic trioxide, arsenous acid is formed by its dissolution in water. Although arsenous acid is toxic, it also has its uses in specific fields.
In the medical field, arsenous acid injection is an important drug for the treatment of acute promyelocytic leukemia. Leukemia is a malignant clonal disease of hematopoietic stem cells. A large number of leukemia cells proliferate in patients with acute promyelocytic leukemia, affecting normal hematopoietic function. Arsenous acid can induce leukemia cell differentiation and apoptosis, achieving therapeutic effect. After clinical verification, arsenous acid has a significant effect in the treatment of this type of leukemia, which can improve the survival rate and quality of life of patients.
In agriculture, a small amount was used in the past to make pesticides and rodenticides. Arsenic acid has lethal effects on many pests and rodents. However, due to the severe toxicity of arsenic, it is easy to cause pollution and harm to the environment and other organisms. Today, such applications have been gradually replaced by safer and more environmentally friendly pesticides and rodenticides.
In industrial production, it can be used as a clarifying agent in some special glass manufacturing processes. Glass manufacturing produces bubbles, which affect the quality and transparency of the glass. Arsenic acid can promote the discharge of bubbles and make the glass more uniform and transparent. However, due to its toxicity, it needs to be strictly controlled when used to prevent damage to the environment and human body.

It is the old name of vinegar. Its physical and chemical properties are quite wonderful, and it has wonderful uses in various fields. Here is a detailed description for you.
First of all, its physical properties. At room temperature and pressure, it appears as a clear and transparent liquid, and its color is often close to colorless. However, due to differences in raw materials and processes, it can also be seen in light yellow and other colors. Smell it, it has a unique and strong sour taste. This taste stimulates the nasal cavity and can wake people up. Its taste is sour, and it is difficult for ordinary people to drink it purely. The boiling point of Acetyl is about 100 degrees Celsius, similar to water, and the density is slightly higher than that of water, about 1.05 grams per cubic centimeter.
As for its chemical properties, acyl is an organic acid, the main component is acetic acid, chemical name acetic acid, with the general nature of acid. First, it can react with active metals. In case of zinc, magnesium and other metals, hydrogen gas will be produced, just like the intersection of gold, with the appearance of gas effervescence. Second, it can neutralize with alkali to generate corresponding salts and water. Take sodium hydroxide as an example, when the two meet, they will turn the conflict into jade and silk, and obtain sodium acetate and water. Third, it can decompose with certain salts. If it encounters calcium carbonate, it will dissolve and release carbon dioxide gas, which is caused by the decomposition of carbonic acid.
Furthermore, Li acetyl has good solubility, can dissolve with water in any ratio, and can also dissolve many organic and inorganic substances. In life, it is often used to dissolve dirt, such as the genus of descaling, all rely on its solubility. And Li acetyl's chemical properties are relatively stable, but under specific conditions, such as high temperature and the presence of catalysts, oxidation, esterification and other reactions can also occur, which is the use of Li acetyl to expand the path, and it also has its indispensable position in the industrial production of fragrances, dyes and other fields.

Borax is a common mineral with unique chemical properties. Borax, scientific name sodium tetraborate, often appears as a colorless translucent crystal or white powder.
In terms of its chemical properties, borax is alkaline. Hydrolysis can occur in water, releasing hydroxide ions, so its aqueous solution is alkaline. This property makes it useful in many fields. For example, in detergents, its alkalinity can be used to enhance decontamination ability.
Borax has a certain thermal stability. Under heating conditions, water will gradually lose, and then a series of phase changes will occur. When it is heated to a certain extent, it will melt into a glassy substance. This property is of great significance in the glass and ceramic industry. In glass manufacturing, the addition of borax can reduce the melting point of the glass, improve the thermal stability and chemical stability of the glass, make the glass more durable, and improve the transparency and gloss of the glass. In ceramic production, borax can be used as a flux to promote the sintering of ceramic bodies at lower temperatures, saving energy, and improving the strength and toughness of ceramics.
Borax also has complexicity. Its borate ions can form complexes with a variety of metal ions. This property is applied in the electroplating industry, which can make the coating more uniform and dense, and improve the quality of the coating.
Furthermore, borax can be used as a buffer in chemical reactions. Because it can maintain the relative stability of the pH of the solution to a certain extent, in some chemical reaction systems with strict pH requirements, the buffering effect of borax can ensure the smooth progress of the reaction and avoid the large fluctuations in pH affecting the reaction results.
The chemical properties of borax are rich and diverse, and it plays an important role in many fields such as industry and chemical industry, and has a profound impact on many production and manufacturing processes.

Alas! If you want to make the second part - the bud candy, the method is wrong. Let me go one by one.
First, start with the product. Take the big rice first, soak it in water, wait for it to sprout, the buds grow inch, take it out and dry it, grind it and finish it. This is the bud. Take glutinous rice, wash it, soak it, steam it, and wait for it to be a little bit, mix it with the bud, put it in a tank, add a small amount of water, and dense it. Set it, then, and then dissolve the liquid. This is the first sugar liquid. Then cloth it, remove the residue, leave the clear liquid in the kettle, and boil it slowly. Boil it without mixing, to prevent it from burning. When the liquid is hot, the color is golden, that is, the bud sugar is obtained.
Second, also use rice. Small, soak until germination, dry and grind. With millet or glutinous rice, cook into a paste, wait for Mix with small bud powder, seal in a container, set aside. Its microbial action, so that the powder of the mixture is melted into sugar. Until, the sugar juice is produced, put Boil. Boil until thick, such as, is good.
Third, use big, small, glutinous rice, etc. First make big and small sprouts, flour. Glutinous rice cooking, bud powder and water together, leaven. For a certain day, take its juice and boil essence. After boiling, wait for the heat and color to be amber, and the ground is thick, before you can stop fire.
This method can be used to get two-thirds of the way - bud sugar. If there is a problem, it is all based on the principle of leavening and boiling the food. Those who use the ingredients, utensils and the right ones will get delicious bud sugar.

The price of amber-2-tannic acid varies from time to time and place between today's markets. It is mostly in all kinds of medicine shops and treasure shops, and its price varies.
If the quality of amber-2-tannic acid is pure and excellent, and the color is positive and moist, in the prosperous city of Dayi, the price per two taels may reach more than a hundred gold. The cover is worth this price because it is not easy to harvest, it is also difficult to make, and it has medicinal uses and various wonders to enjoy.
However, in remote towns, or due to differences in supply and demand, the price is slightly reduced. The price of every tael, or seventy or eighty gold, is also unknown. And people in the city have different bargaining abilities. Merchants are good at calculating, and their prices often change due to the amount and time.
If amber-2-tannic acid is heterogeneous and of inferior quality, dark and astringent in color, its price is not high no matter where. In Tongdu, every two or only twenty or thirty gold; in remote cities, or even reduced to more than ten gold.
Basically speaking, if you seek amber-2-tannic acid in the city, the price can reach more than a hundred gold, and the price can reach as low as ten gold. Due to the texture, location, supply and demand, etc., the price fluctuates within the range.