1-Naphthylamine-5-Sulfonic Acid

1. The nature of cinnamon is old and spicy, both of which are of great use in areas such as cooking and cooking.
- ** The use of cinnamon **:, sex, taste refreshing. It has the effect of relieving sweat, stopping cough, and relieving cough in the lungs. If people feel cold at the beginning, cooking, can make a slight sweat, and disperse evil. The cinnamon branch of "Cold", if the patient is very cold, The family often adds to increase the power of Dispersion. In case of spleen and stomach Cold, Those who spit out water can also spleen and stomach, reduce the reverse and stop. Cinnamon, more refers to cinnamon, taste spicy, sweet, big sex. Can help the fire, ignite the source of fire, dissipate cold and relieve pain, and pass the pain. The family is treating the disease of aging, life and fire, such as cold pain in waist and knee, impotence, etc. Cinnamon is commonly used in recipes, such as golden pills, to vibrate the middle. And the pain of cold coagulation, the pain in the abdomen, or the abdominal pain of people, cinnamon can dissipate the cold and relieve the pain.
- ** Cooking effect **: The common flavor of the room. Its spicy taste can remove the fishy smell. Such as cooking, adding slices can remove the fishy smell and add fragrance. Making meat dishes can also solve the problem and make the meat taste more mellow. The aroma of cinnamon is very special, and it is often used in cooking and cooking. For example, when cooking, adding cinnamon can make the fragrance overflow and the taste is rich. In some characteristic sweeteners, the addition of cinnamon powder can sweeten the taste. For example, cinnamon is the use of the fragrance of cinnamon to make its taste unique.
2. The use of oxalic acid.
- ** Technological aspects **: In metallurgical engineering, oxalic acid can be used as a raw material. For example, in the extraction of some rare metals, the original nature of oxalic acid is used to produce raw materials in its compounds. In the printing and dyeing industry, oxalic acid can be used to remove spots on the mixture. Because it can form water-soluble complexes, it can be used for removal purposes. In addition, oxalic acid can be used in raw antimicrobials and other chemical products such as borneol, and plays an important role in the field of chemical synthesis.
- ** Chamber use **: Oxalic acid is often used for analysis. In chemical analysis, it can be used to prepare a solution to titrate some gold seeds, such as gold seeds. Its properties of gold seeds forming a complex can be used to quantitatively analyze the content of gold seeds. And oxalic acid can be used to control the acidity of the reaction system in some synthetic compounds to control the reaction rate and direction.

Its physical properties are unique and can be explored.
The color of alum stone is mostly pure, and the white one is like frost and snow, radiant and shiny. The texture is solid and brittle, and it is easy to break when hit by objects. The section is often fine-grained, like the condensation of fine ice crystals. It is dry and left in the air for a long time. It is not easy to be damp and remains dry.
The performance of water is specific. Although it is not very soluble, when it enters the water for a while, it can be seen that it is slowly dissolving. The solution has the property of convergence. When touched by hand, it has a slippery feeling, but it is different from the slippery grease. This slippery feeling is accompanied by a slight convergence of touch. Its sour taste makes the mouth jerky and difficult to swallow. This sour taste is also one of its characteristics.
Its melting point is not low, and it cannot be easily melted in case of high temperature flames. It must be burned for a long time before it gradually softens and deforms, and finally melts into a liquid state, and then returns to a hard state after cooling.
Under the light, the aluminium stone can be seen to have a faint luster and flicker. Although it is not as bright as pearls and jade, it also has a unique simplicity. Because of its physical properties, the ancients were used in many fields, or used in medicine to treat diseases, or in printing and dyeing, water purification, etc., all because of its characteristics.

1-% musk deer-5-acid, its transformation property is special, and there are many ancient families to study. Musk deer, the best of the fragrance, its fragrance is special, can be made of gold stone, and the gods. The contents of musk deer, including musk ketone, etc., have the functions of awakening the mind, promoting blood circulation, eliminating pain and relieving pain.
To the acid, it is the acid in the juice, which is abundant, and has more bitterness and cold. The transformation property of acid can help the digestion and absorption of fat, make oil separate, and melt soluble substances, so as to facilitate the extraction of the stomach. And acid can be the bacteria of the Tao, and the peace of the Tao.
The fragrance of musk deer, which is strong and does not lose its clarity, its active ingredients can stimulate the mind, make people wake up, and have a recovery effect in cases of fainting, middle age, etc. Its power to promote blood circulation can pass the pressure of the body, eliminate the accumulation of blood stasis, so it can be used in the body, the body, and the body.
Acid, with its bitter and cold properties, can be the fire of the liver, and clear the body. In cases of jaundice, diseases such as the body, it can help to retreat and dissolve the body. And because of its surface activity, it can reduce the interface force of oil and water, so it can promote the emulsification of fat and help its digestion.
There are two kinds of transformations. Musk musk deer use Xin to disperse the main body, and acid to clear the main body with bitterness and cold. However, they are all in the way of medicine, and they have extraordinary uses. The ancients studied material properties carefully, and they used it to cure diseases.

There are many synthesis methods of 1-% musk musk-incense-5-salicylic acid, among which are exquisite and have their own strengths.
First, o-hydroxybenzoic acid and acetic anhydride are used as raw materials and can be obtained by acetylation. This is a classic method, just like the stable way contained in ancient books. First, o-hydroxybenzoic acid is placed in a reactor, slowly injected into acetic anhydride, and an appropriate amount of concentrated sulfuric acid is used as a catalyst, just like a guide, leading the reaction forward. At a suitable temperature, stirring and heating, just like carefully controlling the heat in the ancient method, so that the molecules interact and gradually form salicylic acid. After the reaction, after cooling, crystallization, filtration, washing and other steps, it is like carefully carving jade, and finally a pure product is obtained. The advantage is that the raw materials are easy to obtain, the operation is relatively simple, just like ordinary techniques are easy to master, and it can be implemented in many scenarios.
Second, using phenol as the starting material, it first reacts with sodium hydroxide to produce sodium phenol, and then reacts with carbon dioxide under high pressure. This is the Kolbe-Schmidt reaction, which is like opening up a new path. Under high pressure environment, sodium phenol and carbon dioxide collide more violently, and the reactivity increases greatly. After acidification, salicylic acid can be obtained. This process requires specific high-pressure equipment, just like special artifacts, which requires quite high equipment. However, its advantage is that the atomic utilization rate is high, which is in line with the current green chemistry concept, just like a new technique that conforms to the trend of the times.
Third, using toluene as raw material, benzoic acid is first oxidized, and then salicylic acid is synthesized through steps such as carboxyl ortho-halogenation and hydrolysis. This route seems to be a roundabout road, but it contains unique ingenuity. After toluene is oxidized to benzoic acid, halogen atoms are introduced at the carboxyl ortho-position, which is like a foreshadowing at a specific position. After hydrolysis, the halogen atoms are replaced by hydroxyl groups, and finally salicylic acid is obtained. This method is a bit complicated, like a winding path, but it can make full use of toluene resources and provide new ideas for raw material selection. It is a good strategy in some places where raw materials are abundant.

Anyone who uses saltpeter and sulfur must be careful. Saltpeter and sulfur are strong in nature and will explode in case of fire, so when using it, you must check the surrounding environment and avoid open flames and hot topics. And the mixing ratio of the two is also very important. If the ratio is not appropriate, it may not achieve the expected effect or cause accidents.
When using it, you must clean its equipment and do not mix sundries in to prevent qualitative changes and differences. The amount of use, when accurately measured, should not be increased or decreased at will, so as not to affect the final result.
The place of operation should be spacious and ventilated. If it is in a narrow chamber, gas will accumulate or cause poisoning. And the operator, in front of protective equipment, such as thick cloth gloves, eye protection cover, anti-splash injury.
When preparing, the method should also be stable and accurate, stirring and other actions should not be too violent or too fast, so as not to cause friction and cause it to explode. After completion, you should also pay attention to storage. It should be placed in a cool and dry place, away from children and fire sources, and properly sealed to prevent accidents. All of these are related to life and effectiveness, and must not be observed or accidentally.