Dimercaptoethylamine, also known as 2,3-dimercaptopropylamine, has the following main uses:
Although dimercaptoethylamine did not have such a fine cognition in ancient times, it can also be inferred with today's understanding of ancient conditions. In the field of healing, dimercaptoethylamine can be used as a detoxifying agent. Because the human body is occasionally infected with poisons, dimercaptoethylamine can combine with harmful metal ions in poisons to dissolve or reduce its toxicity. Ancient doctors, in case of poisoning, although they did not know the name of dimercaptoethylamine, they may explore similar detoxification methods in practice.
For protection purposes, such as when engaging in some labor that is easily exposed to poisons, dimercaptoethylamine can be applied in advance to reduce the damage of poisons to the human body. Ancient craftsmanship, in metallurgy, pharmacy and other industries that are easily involved in poisons, if you can know this material, it will be helpful in protecting yourself.
Furthermore, dimercaptoethylamine can be used as a reagent in scientific research to help researchers explore the characteristics and reactions of metal ions. In ancient times, although the scientific research methods were simple, in the fields of gold and stone science, alchemy and other fields, if you can obtain dimercaptoethylamine, you may be able to help them explore material changes. Although the knowledge at that time was limited, it may be able to open up new ideas and lay the foundation for future scientific development.

Dichloroethane is one of the halogenated hydrocarbons. Its physical properties are unique.
Looking at its appearance, under room temperature and pressure, dichloroethane is a colorless or light yellow transparent liquid, just like a clear spring, clear and shiny. Smell it, with a smell similar to chloroform, although not pungent and intolerable, it also has a unique smell.
As for its boiling point, it is about 83.5 ° C. This boiling point characteristic makes it easy for dichloroethane to change from a liquid state to a gaseous state under proper heating conditions, just like an invisible spirit, quietly dancing in the air. Its melting point is -35.7 ° C, which indicates that in a lower temperature environment, it will solidify into a solid state, as if time has stopped, showing a different form.
Dichloroethane has a higher density than water, about 1.26g/cm ³. If it is placed in one place with water, it can be seen that it is like a stable stone, quietly sinking at the bottom of the water. Moreover, dichloroethane is insoluble in water, and the two are like incompatible strangers and difficult to blend. But it can be miscible with organic solvents such as ethanol and ether, just like finding like-minded friends and fusing with them intimately.
Furthermore, dichloroethane vapor is heavier than air, about 3.42 times that of air, which makes it easy for its vapor to accumulate at low places, such as hidden undercurrents near the ground, which may cause potential danger in specific environments.

Dichloroethane is a common organic compound. Its impact on the environment is quite significant, as detailed below:
In the atmosphere, if dichloroethane evaporates and escapes, it will go through complex physical and chemical processes. Under light, it can react with active substances such as hydroxyl radicals in the atmosphere, and then generate a series of secondary pollutants, such as carbon monoxide, carbon dioxide and chlorine-containing small molecule compounds, etc. These substances may affect the chemical composition and oxidation capacity of the atmosphere and interfere with air quality.
In aquatic ecological environments, dichloroethane has a certain water solubility. After it enters the water body, it may have toxic effects on aquatic organisms. Due to its stable chemical structure, some aquatic organisms are difficult to rapidly decompose and metabolize it, so it is easy to accumulate in organisms. From plankton to fish, they may be affected by it, causing physiological disorders such as stunted growth and development, decreased reproductive ability, and even death. Over time, it may break the balance of aquatic ecosystems and reduce biodiversity.
In the soil environment, dichloroethane may be adsorbed on soil particles, affecting the physical and chemical properties of the soil. It may inhibit the activity of microorganisms in the soil, which play a key role in the decomposition of organic matter in the soil and nutrient cycling. Once microbial activity is suppressed, the fertility and self-purification capacity of the soil will also be damaged, affecting plant growth. If plants absorb soil nutrients containing dichloroethane, harmful substances may be transmitted through the food chain, endangering higher trophic organisms, including humans themselves.
Therefore, dichloroethane has adverse effects on the atmosphere, water and soil of the environment, and it is necessary to treat it with caution and control its production, use and discharge to protect the well-being of the ecological environment.

Dimercaptoethylene glycol is rarely found in ancient recipes. Today it is a chemical product, and the preparation method should be based on today's scientific methods. However, in ancient Chinese, it can be said as follows:
To make dimercaptoethylene glycol, you need to use suitable materials and exquisite techniques. First take glyoxal and place it in a clean kettle to slow down the heat. Wait for it to melt a little, add an appropriate amount of sodium hydrosulfide, and the two meet, like yin and yang sympathetic, gradually changing. In the meantime, you need to stir frequently to make it harmonious.
When stirring, observe the change of its color and texture, until its color is slightly yellow and the quality is slightly thicker, like caramel, then stop stirring. Then, cool it with ice water to make it set quickly. After condensation, place it in a distillation vessel and steam slowly over low heat. The steamed product is filtered with activated carbon to remove its impurities to make the quality pure.
Then put the filtered product into the reaction dish and add an appropriate amount of alcohol, such as ethanol. Repeat with warm fire to promote its synthesis. This process requires careful inspection of the heat, not too much or too little. After the two are combined, purify it by distillation to remove the excess alcohol and unreacted products.
The final result is dimercaptoethylene glycol. Its color is transparent, slightly peculiar fragrance, warm and has special properties. However, this is all based on the ancient meaning and the current method. The current method of making must be based on scientific principles and precise tools to obtain pure and excellent products, which is not within the reach of the simple methods of the ancients.

It is appropriate for the most important person to have an end to it.
The most important thing to hide is the situation of the first priority. The place where things are hard to do, to avoid sunlight exposure, if it is a place where the tide is inflamed, it is easy to create and lose its effectiveness. And it is appropriate to create a fire to prevent fires. The second one is more flammable, and if you are not careful, it will become a big problem.
The second time is the container. It is necessary to use a secret device, which can prevent the intrusion of air and water vapor. If the container is not dense, the things in the air will be separated from each other, and it is easy to melt and make it more efficient.
The best, the best first. Move it, be careful and careful, do not make the shock strong, causing the product to break. And the tools are also appropriate, to ensure that the environment, dryness, and the requirements of the same collection.
Furthermore, it is clear.,,,,,,