5-quinolinecarboxaldehyde, 8-hydroxy-

In "Tiangong Kaiwu", alum has different types and functions. Alum gall (alum gall, here the related concepts of alum gall echo and understand) is a genus of alum. Alum gall is strong in nature, soluble in contact with water, and easy to melt in fire. Its color is white or slightly green, brittle and fragile.
Alum gall has chemical properties and can respond to many substances. In contact with alkalis, it often produces wonderful changes, or precipitates, or produces gas and escapes. In acids, its dissolution rate increases, and the transformation should be intense, and many new substances are formed.
When calcined with fire, alum gall loses crystalline water, and its morphology and color change, and its properties also change. In this process, it can be seen that its structure disintegrates, from the state of containing crystal water to anhydrous matter. In metallurgy, it can be used as a flux to reduce the melting point of ore and promote metal separation. In the dyeing and weaving industry, it can fix colors and make fabrics firm and bright. In medicine, although it has small poisons, it can be properly processed, and it can also be used for medicinal purposes, treating sore and tinea, removing dampness and poison, etc.
Its chemical properties are complex, and it is used with caution and appropriate methods to do its best and avoid its harm. The ancients have practiced it for a long time, well aware of its nature, and used it well in various industries to form many skills and pass them on to future generations.

There are various methods for the common synthesis of boronyl-5-photoiminonitrile. First, the halogenated aromatic hydrocarbon and borate ester are used as raw materials, and can be formed by the coupling reaction catalyzed by palladium. This is a classic method, and the palladium catalyst can efficiently promote the formation of carbon-carbon bonds. In the reaction, the halogen atom of the halogenated aromatic hydrocarbon and the boron atom of the borate ester are combined by palladium to form a carbon-carbon bond, and then the structure of boron-5-photominonitrile is constructed.
Second, the aldehyde and amine are used as the starting materials, and the imine is formed by the condensation reaction, and then the boron group and the nitrile group are introduced. Under appropriate conditions, such as catalysis by acid or base, the aldehyde and amine are dehydrated and condensed to form imines. Subsequently, boron groups and nitrile groups are introduced into the imine structure by suitable reagents and reaction conditions. This process requires fine regulation of reaction conditions to ensure the selectivity and yield of the reaction.
Third, use organometallic reagents to react with boron-containing and nitrile-containing substrates. Organometallic reagents have active carbon-metal bonds and can undergo nucleophilic substitution or addition reactions with corresponding substrates. By selecting suitable organometallic reagents and substrates, boron-5-photoiminonitrile can be synthesized. However, this method requires attention to the preparation and use conditions of organometallic reagents, as they are mostly sensitive to air and water.
There is also an electrochemical synthesis method, under the action of an electric field, the related raw materials undergo redox reaction, and then form boron-5-photomiminonitrile. This is an emerging synthesis path with green and high efficiency potential, but it requires high reaction devices and conditions, and further research is needed to improve it.

Alum stone has a strong dryness and wide range of uses, and is useful in many fields.
In the field of medicine, alum stone has been used for a long time. The "Shennong Materia Medica Classic" has records that it can detoxify and kill insects, dry dampness and itching. When used externally, it can treat scabies, eczema, eczema and other diseases. With its ability to dry and wet, it can remove the dampness of the skin and make the skin rehabilitate. When taken internally, it can stop diarrhea, reduce phlegm and saliva, help the spleen and stomach to transport and transform, and reduce phlegm turbidity in the body. However, internal use must be cautious, because of its strong nature, the dosage needs to be precisely controlled to prevent injury.
In the industrial land, alum stone is also indispensable. In the papermaking industry, it can be used as a mordant to help the paper In the printing and dyeing industry, dyes can be tightly combined with fabrics to prevent fading, making the printed and dyed objects colorful and lasting. In the water purification process, the aluminum hydroxide colloid produced by the hydrolysis of alum stone can absorb suspended impurities in the water, clarify the water body, and ensure the cleanliness of the water.
In daily life, alum stone can also be seen. In food processing, it was once used as a leavening agent to make pasta such as fritters swell and soften, and taste better. However, due to health considerations, its use is strictly limited. In the art of tanning leather, alum stone can help leather to remove hair, soften, and make leather soft, making it a good product.
As for sodium pentaborate, its use is also quite considerable. In the chemical industry, it is an important raw material for the preparation of boron compounds, and the synthesis of many fine chemicals depends on it. In the glass industry, adding sodium pentaborate can improve the thermal stability and chemical stability of the glass, making the glass more durable, such as the manufacture of high-grade heat-resistant glassware. In the ceramic industry, it can be used as a flux to reduce the firing temperature of ceramics, optimize the properties of ceramics, and improve their quality and aesthetics. In the metallurgical industry, it can be used as a flux and a refining agent to remove metal impurities, improve metal purity, and improve the metallurgical process.

The alum, because of its unique nature, is widely used in things. Its nature is cool and dry, and its taste is sour and astringent. Common alum, such as alum, has the power of dryness and dampness to relieve itching, detoxification and insecticide. When used by doctors in the disease of sore and scabies, with its power of dryness and dampness, it can restrain sores and mouths, but it is poisonous by insects.
Five-square borax, cold in nature but salty and bitter in taste. Its quality is light and brittle, white or slightly gray in color, like crystals. In the way of medicine, it can clear away heat and detoxify, reduce swelling and preservative, and is often used for diseases such as swollen throat and sore mouth. With its cool nature, it can clear away heat and reduce fire, and has a salty and bitter taste. It can be soft and firm to disperse
In addition, borax is also very useful in industry. It has good fusibility and metallurgical properties, which can help ore melt, reduce its melting point, and promote metal refining. In glass manufacturing, it can increase the transparency and heat resistance of glass, making the product strong and beautiful.
As for both alum and borax, both are chemically active and are often used as raw materials or catalysts in chemical reactions. Alum contains a variety of metal ions, which can cause unique chemical changes in specific reactions; borax, with its boron properties, participates in many organic and inorganic syntheses, contributing to the chemical process. Although the physical properties of the two are different, they are both in the fields of medicine, industry, chemistry, etc. They each develop their strengths and are used by the world and cannot be underestimated.

"Tiangong Kaiwu" has a saying: "Where the ink is, it is made by burning the smoke and condensing the quality." Today ask about the market price of potassium and borax, and listen to me.
Potassium alum, also known as potassium alum, has a wide range of uses and is useful in many fields such as water purification, papermaking, food additives, etc. Its market price varies according to quality, origin, supply and demand trends. For those of average quality, the price per ton is about thousands of yuan. If the quality is excellent, and the origin is advantageous, coupled with strong market demand, the price may rise slightly; on the contrary, if there is excess capacity and low demand, the price may also drop.
As for pentagonal borax, it is an important chemical raw material and indispensable in glass, ceramics, metallurgy and other industries. Its market price is also influenced by a variety of factors. Generally speaking, the price of pentagonal borax per ton often ranges from a few thousand yuan to more than 10,000 yuan. When the international situation changes and the supply of raw materials is blocked, the price often rises; and if the industry competition is fierce, the production capacity is greatly increased, and the supply exceeds the demand, the price is easy to fall.
The market prices of potassium and pentagonal borax are not static and fluctuate with changes in the market. Both merchants and users need to pay close attention to market trends in order to gain.