4-Iodo-M-Xylene

The two ugly people are also the funny characters in the play. Although the things described in "Tiangong Kaiwu" are not detailed, they have extraordinary functions in all kinds of folk business and market conditions.
Looking at the streets and lanes, the two ugly people often bring joy to everyone with their witty and playful words. During festivals or meeting places, the two ugly people take the stage to perform, and with exaggerated actions and ingenious words, they make the audience laugh and make everyone forget the hardships of hard work and the tiredness of life. This is the function of entertaining people.
In addition, the two ugly people can also be pointed at the shortcomings of the times in the performance room. With its comical appearance, it hides its insight and criticism of the cold world and the good and evil of the human heart. Although it is not spoken bluntly, the viewer can understand it carefully, which prompts everyone to reflect on themselves and reflect on the world style, which has the effect of warning the world.
And in interpersonal and social situations, the characters of the two ugliness often use humor to resolve embarrassment and reconcile the atmosphere. When people's words conflict and the atmosphere is tense, the two ugliness gag in a timely manner to eliminate contradictions in a relaxed manner and maintain the harmonious coexistence of the crowd.
At the end of cultural inheritance, the skills and images of the two ugliness carry folk wisdom and traditional aesthetics. Over the years, passed down from generation to generation, it has become a part of folk culture, enriching the spiritual world of the people, enabling future generations to glimpse the social style and people's taste of the past. In summary, although the two ugliness is a supporting role, it has important functions that cannot be ignored in many aspects such as people's life, social atmosphere and cultural inheritance.

Diethylamine is an organic compound with unique physical properties.
Looking at its properties, diethylamine is a colorless liquid under normal conditions, and it is accompanied by a strong ammonia odor, which is very pungent. In terms of boiling point, it is about 55.5 ° C, which is relatively low, indicating that it is easy to transform into a gaseous state under milder heating conditions. The melting point is -49.8 ° C, which means that in a relatively low temperature environment, diethylamine will solidify into a solid state.
The density of diethylamine is also worth mentioning, which is about 0.706g/cm ³. Compared with the density of water, 1g/cm ³, its density is relatively small, so if mixed with water, diethylamine will float on the water surface. In addition, diethylamine has good solubility. It can not only miscible with water, but also soluble in many organic solvents such as ethanol and ether. This property makes it an excellent solvent or reactant in various chemical experiments and industrial production.
In addition, diethylamine is volatile and will gradually evaporate into the air under normal temperature and pressure, and its odor is strong. Therefore, during use and storage, special attention should be paid to ventilation to prevent adverse effects on the human body. At the same time, because of its certain chemical activity, when it reacts with other substances, its physical properties may also affect the process and result of the reaction, such as its boiling point, solubility, etc., which will affect the mass transfer and heat transfer process of the reaction system, and then affect the reaction rate and product purity.

Diethyl ether is a colorless and transparent liquid with a special aromatic aroma and is highly volatile. Its chemical properties are quite unique, which is really interesting.
When it comes to flammability, diethyl ether is highly flammable. In the air, when exposed to open flames and high heat energy, it will cause intense combustion. Its vapor and air can form an explosive mixture, and the explosion limit range of this mixture is 1.9% - 36.0% (volume fraction). In case of fire, it will explode instantly, with amazing power, just like that dry wood when exposed to fire, it will explode instantly.
The chemical activity of diethyl ether should not be underestimated. It can chemically react with many substances. For example, under certain conditions, it can react with strong acids. When co-heated with concentrated sulfuric acid, ethyl sulfate and other products are formed. This reaction is like a wonderful chemical dance, and various substances interact according to specific rules.
In terms of oxidation reaction, although diethyl ether is relatively stable, it will be slowly oxidized when exposed to air for a long time, forming peroxides. This peroxide is extremely dangerous and prone to explosion when heated or impacted. Just like a hidden danger factor, it quietly accumulates, and once triggered, it will lead to disaster.
In addition, diethyl ether can also be used as a solvent to dissolve many organic compounds. Because of its good solubility, it is widely used in the field of organic synthesis. It is like a magical key that can open the door to the dissolution of many organic substances and help scientists carry out all kinds of delicate chemical experiments and synthesis work. In short, diethyl ether has various chemical properties, and when taking advantage of its excellent properties, it is also necessary to be highly vigilant of its dangerous properties and operate cautiously to avoid advantages and disadvantages.

The method of making and matching the four-flavor ethyl gold lock is the ancient fine art and has a unique recipe.
First, choose the essence of medicine and whiskers. For ethyl gold, choose the best tulip and green skin. Tulip, when the texture is solid, the face is yellow, and the aroma is rich, this is a good product. It is collected in a specific place and nourished by the season. It has the effect of soothing the liver and qi, promoting blood circulation and relieving pain; green skin, choose the immature fruit of the young orange tree, with green skin, thick meat, and strong aroma as the top, which can break the qi and eliminate the accumulation, and soothe the the liver. The two complement each other and are the key to ethyl gold.
Second, there is a way to cook. Slice tulip, moisten it with water, then put it into a pot, stir-fry slowly over low heat, until the color becomes darker and not burnt, its nature is mild and the medicinal power is purer; after the green skin dries in the shade, mix it with vinegar, stir-fry it in a pot until slightly dry, vinegar is introduced into the liver to enhance the power of soothing the liver.
Third, the compatibility is exquisite. With other two flavors of golden lock, often accompanied by incense and black medicine. Incense, choose the rhizomes sturdy and solid in quality. After processing, its taste is refreshing, slightly bitter, slightly sweet, flat in nature, can soothe the liver and regulate qi, regulate menstruation and relieve pain, and is the head of the general department of qi disease and the head coach of the female department; black medicine, take its root, slice it and dry it, warm in nature, can relieve pain, warm the kidney and dissipate cold. The four flavors are compatible, tulip, green skin and dredge the liver and qi, incense attachments regulate all qi, and black medicine passes through the qi of Jiao, which together form a good recipe for dredging the liver and regulating qi, promoting qi and relieving pain.
Fourth, the preparation is rigorous. The four flavors of the processed medicine are ground into a fine powder according to a specific ratio and sieved to make the powder uniform and delicate. After the honey is used as a pill, the honey chooses high-quality honey. After refining, it is fully mixed with the medicinal powder to make a pill. The pill is moderate in size, easy to take, and preserves the medicinal effect. It will not be damaged after being stored for a long time. This is the method of making four-flavor ethyl gold locks, which is a wonderful recipe for the inheritance of ancient good doctors.

Erxian ointment, as a tonic agent, should be carefully stored and transported to ensure its efficacy and quality.
When storing, the first choice of environment. It must be placed in a cool and dry place, protected from direct sunlight. When exposed to sunlight, the paste is prone to heat and deterioration, and its medicinal power is also reduced. And it should not be stored in a damp place to prevent moisture from invading and causing mildew of the paste.
Furthermore, the choice of container is crucial. It should be stored in a clean and sealed container. One prevents dust and debris from being mixed in, and the other prevents air contact to prevent oxidation of the paste. The utensils used are preferably ceramics and glass, which are stable in nature and do not chemically react with the paste.
When transporting, it is important to maintain stability. The road is bumpy and it is easy to damage the paste. When handling, the action should be gentle and not rough. If using a vehicle, it is necessary to lay down soft things, such as cotton wool, soft felt, etc., so that the paste is protected from vibration and impact during travel.
And the weather changes, you must also pay attention. When the heat is hot, the high temperature is difficult to tolerate, and the paste is easy to melt. It is advisable to transport it in the morning and evening when it is cool, or use ice packs and other materials to cool down. In times of severe cold, the paste is easy to freeze, and freezing will change the quality, so take good measures to keep warm, such as wrapping it in a thick cloth or placing it in a warm box.
In short, the storage and transportation of Erxian ointment is related to its full efficacy and good quality. All kinds of attention should not be ignored, so as to ensure that this ointment benefits patients and the curative effect is as usual.