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What are the physical properties of glutaric acid?
Carbon disulfide has special physical properties. Under normal temperature and pressure, it is a colorless, transparent and volatile liquid with a slightly sweet taste, but its vapor is more irritating.
Looking at its properties, the boiling point of carbon disulfide is quite low, about 46.5 ° C. This property makes it easy to change from liquid to gaseous and evaporate in the air. Its melting point is also not high, -111.6 ° C, so it is often in a liquid state at general ambient temperature.
Furthermore, the density of carbon disulfide is greater than that of air, about 1.26 g/cm ³. If accidentally leaked, its liquid will be deposited on the ground or in low-lying places. And its solubility is relatively unique, it can be miscible with most organic solvents such as alcohols, ethers, benzene, etc., but almost insoluble in water. This characteristic makes it an excellent solvent for specific solutes in chemical experiments and industrial applications.
And because of its volatility, it can evaporate steam at room temperature. This vapor and air can form an explosive mixture. In case of open flame and hot topic, it is very easy to burn and explode. Therefore, during storage, transportation and use, extreme caution is required to prevent the danger of fire and explosion.
The vapor of carbon disulfide is heavier than air and can be diffused at a lower place to a considerable distance. In case of fire source, it will catch fire and backfire. Therefore, in places involving carbon disulfide, safety measures such as ventilation and fire prevention must be taken to ensure the safety of personnel and the environment.
What are the chemical properties of glutaric acid?
Tannic acid, also known as tannic acid, is a common organic compound. Its chemical properties are unique and have many characteristics.
Tannic acid is acidic. Due to its molecular structure containing multiple phenolic hydroxyl groups, it can dissociate hydrogen ions in aqueous solutions, showing acidity. This acidity enables it to neutralize with bases to generate corresponding salts and water. If reacted with sodium hydroxide, sodium tannate and water can be formed.
Furthermore, tannic acid has strong reductive properties. Phenolic hydroxyl groups are easily oxidized, and in the case of strong oxidants such as potassium permanganate, phenolic hydroxyl groups can be oxidized to quinones and other compounds. This reductive property has important applications in some chemical reactions and industrial production.
Tanned diacid can react with proteins. The phenolic hydroxyl group in its molecule can interact with the amino group, carboxyl group and other groups in the protein molecule to form a relatively stable complex. This property makes it widely used in leather tanning process, which can make leather soft and have good physical properties.
At the same time, tanned diacid can complex with metal ions. The oxygen atom of the phenolic hydroxyl group has lone pair electrons, which can form complexes with metal ions such as iron ions and aluminum ions. The formed complexes often have special color and stability, which can be used for qualitative and quantitative detection of metal ions in analytical chemistry.
In addition, tanning diacid can undergo hydrolysis reaction in aqueous solution. Under certain conditions, its molecular structure will break and form corresponding small molecule compounds. This hydrolysis reaction is affected by factors such as temperature and pH.
The chemical properties of tanning diacid are diverse, which determine its wide application and research value in many fields such as chemical industry, medicine, food, etc.
In which fields is glutaric acid used?
Tanned diacid has a wide range of applications and is involved in various fields.
In the field of medicine, tanned diacid has a unique effect. It has the ability to converge, which can help wounds heal and slow down bleeding. Ancient physicians, in case of gold sores bleeding and ulcers that do not converge, often Tanned diacid is used as medicine. Because of its astringent power, it can shrink local tissues, reduce exudation, promote new muscle growth, and achieve the effect of healing. And tanned diacid can inhibit bacteria and is also beneficial in the prevention and treatment of wound infections.
In the papermaking industry, tanned diacid is also indispensable. With its combination with the fibers in the pulp, it increases the strength and toughness of the paper. In ancient times of papermaking, craftsmen knew that the pulp was treated with tanned diacid-containing materials, so that the paper could last for a long time without being brittle. Such as the paper of ancient books, it can still be retained after thousands of years, and the contribution of tanned diacid is indispensable.
In the world of tanning, tanned diacid is the key to its use. The method of tanning is to combine tanned diacid with leather fibers to turn raw leather into tough and durable leather. After tanning, leather is not afraid of water and moisture, and is not easy to perish. In ancient times, tanning craftsmen used tanned diacid-containing plants, such as tannins, based on experience.
The art of dyeing, tanned diacid also has its use. It can be used as a mordant to help dyes bond more firmly with fabrics. In ancient times of dyeing, dyers used tanned diacid to make the color last for a long time, and the fabric will not fade after washing, and the color will last for a long time.
Tanned diacid has important applications in many fields such as medicine, papermaking, tanning, dyeing, etc., adding color to production and life through the ages, and its effect is significant.
How to prepare glutaric acid
The method of making disulfuric acid has been known for a long time. To make disulfuric acid, you first need a basic material. First, sulfur, which is the foundation of disulfuric acid, is suitable. The good and bad of the land, it has a huge impact on the formation of disulfuric acid. Its saltpeter is also indispensable, and it is also of high quality, so as to ensure the anti-profit. In addition, suitable containers are also very important. It is advisable to use those that are resistant and do not cause chemical reactions.
Of the, first take sulfur, put it in the, and heat it with fire. Make sulfur burning, dissolving sulfur dioxide. In this case, pay attention to the control of the heat, the fire is fierce, and the sulfur dioxide dissipation speed is low, so as to collect; the fire is weak, the reaction is low, and the power consumption is low.
When sulfur dioxide is generated, it is introduced into the container containing saltpeter. When saltpeter encounters, it will also release oxygen. Sulfur dioxide and oxygen are reduced under the appropriate conditions, and it will be used for biochemical reaction, and sulfur trioxide will be reduced one by one. In this step, the communication and density of the container need to be exquisite, so that the reaction material can be fully connected, and it is also prevented from outside.
And then, by absorbing sulfur trioxide with water, disulfuric acid can be obtained. However, this water also needs to be studied, and it is appropriate to use high-quality water. Whether it is mixed with water or not, it will affect the product of disulfuric acid. During the absorption process, it is necessary to slowly introduce sulfur trioxide into the water without mixing, so as to waterproof the water and boil due to the strong reaction, and also ensure that sulfur trioxide is fully absorbed.
The whole process, the
must be careful, every step must not be lost. The extraction of materials, to the temperature, pass, absorption, etc., all need to be carefully grasped to obtain high-quality sulfuric acid.
What is the market price range for glutaric acid?
The price of boradic acid in the market varies due to various reasons. It is related to the purity of coarse, the difficulty of preparation, the situation of supply and demand, and even the difference between time and place.
If it is said that the purity is high and the preparation is difficult, its price must be high. The preparation process requires exquisite craftsmanship and rare raw materials. The cost is high, and the price is not low. This kind of boradic acid may be used for fine scientific research and high-end manufacturing. In this field, quality is paramount, and the price is not the primary consideration.
Those with less purity and easier preparation are slightly cheaper. It is mostly used for ordinary industrial purposes. Although the demand is wide, the quality is not as harsh as the former, so the price is close to the people.
Looking at the supply and demand side, if the market demands a lot, and the supply is small, the price will rise; on the contrary, if the supply exceeds the demand, the price will drop.
As for the difference in time and place, it cannot be ignored. At different times, prices may change due to economic conditions, policies and decrees; in different places, the price of boronic acid varies due to the difference in transportation costs and taxes.
Roughly speaking, for ordinary purity, the market price is from a few yuan to tens of yuan per gram; if it is a high-purity high-quality product, the price per gram may exceed 100 yuan, or even higher. This is only an approximate number. The actual price must be carefully studied according to the current market conditions.
