5-Iodo-2-Furaldehyde

"Tiangong Kaiwu" says: "The use of tillers is great!" The tiller, the key to winemaking, has three main uses.
First, winemaking is the most important use of tillers. In the process of winemaking, tillers play the role of starters. There are many microorganisms in the rice, such as mold, yeast, etc. Mold can decompose starch in the grain into sugars such as glucose, and yeast converts glucose into alcohol and carbon dioxide. In ancient winemaking, the steamed grain and rice are fully mixed, and placed in an environment suitable for temperature and humidity. After a long fermentation, the grain gradually turns into a mellow wine. The brewing of rice wine and rice wine depends on the work of tillers. If there is no tiller, it is difficult for grains to make good wine, and there will be less good wine in the world, and the taste of drinking will be reduced by more than half.
Second, tillers can be used to make sauces. Sauce is a commonly used condiment in daily diet, adding flavor and color, and is indispensable. When making sauces, tillers also play an important role. Microorganisms in tillers can decompose beans or grain proteins and starches to produce amino acids, sugars and other substances. Amino acids give the sauce a unique umami, while sugars make the sauce suitable for sweetness and color. To make soy sauce from soybeans, you need to cook the soybeans first, add them to the seeds, and then add salt water to ferment. Through this process, the soybean under the action of the tiller, the gradual change to the red brown, soy sauce with rich soy sauce, whether it is dipped in food, cooking, can add a lot of color to the dishes.
Third, the tiller is also crucial for making vinegar. In the brewing of vinegar, the grain is fermented into wine with the tiller, and then the alcohol is oxidized to acetic acid by acetic acid bacteria. The tiller starts the first step of fermentation, laying the foundation for the formation of subsequent vinegar. Vinegar is not only an important seasoning, but also helps to preserve food. For example, vinegar-stained vegetables can extend their shelf life and give them unique flavors.
Tillers play an irreplaceable role in winemaking, sauce making, vinegar making, etc., and have a profound impact on the formation and development of food culture, adding a lot of flavor to people's daily lives.

Alumite is a mineral with unique physical properties. Its color may be white, green, yellow, or black, to name a few. The white one is as clean as frost and snow, the green one is as clear as green feathers, the yellow one is as bright as gold, and the black one is as dark as ink and jade.
Its texture is often hard and brittle. When touched, it feels cool, like the first melting of ice and snow. If you twist it with your hands, it will be fine and smooth. Looking at its shape, it may be lumpy, solid and heavy, like the bones of the earth; or granular, finely broken and small, just like the stars scattered.
Alumite under light has a special luster. Sometimes it shines brightly, like a pearl. Although the light is not eye-catching, it has a soft beauty, as if it contains the spiritual energy of heaven and earth. Its specific gravity is moderate, and when you hold it in your hand, you can feel its heavy texture, as if it bears the weight of time.
And alum stone has strong water absorption, and it is easy to melt in contact with water. If you place it in a humid place, you will soon see that its surface has a moist state, just like absorbing sweet rain, as if it has life, and it can echo the surrounding environment. These physical properties make it useful in many fields. The ancients often used it as medicine, alchemy, and also for dyeing, preservative and other things. It is actually a wonder given by nature.

Alumite, its chemical properties are unique and quite wonderful. Alumite contains mostly metal ions and sulfate and other components. In aqueous solution, it can dissociate many ions, showing specific chemical activities.
When heated, alumite can often undergo reactions such as dehydration. Such as green alum, it will lose its crystal water after calcination, its color and shape will change, and its chemical properties are also different from before. This change is like a wonderful change between heaven and earth, which cannot be easily controlled by human beings. It is the work of nature.
When alumite meets other substances, it will also have a wonderful reaction. When encountering alkalis, precipitation or new compounds can often be formed, and the process is like a delicate chemical reaction dance. Different types of altzite have different reaction phenomena and products due to the different metal ions they contain.
And because of its chemical properties, altzite has wonderful uses in many fields. In dyeing workshops, it can be used as a mordant to help the color firmly adhere to the fabric, just like the spirit that can lock the color. In the industry of purifying water, it can make impurities in the water condense and settle, just like the guardian of clear water, making the water clear.
Looking at its chemical properties, it not only contains the mysteries of nature, but also is closely related to people's livelihood. Its various changes and uses all demonstrate the principle of the interaction between heaven and earth. As "Tiangong Kaiwu" says, everything in the world has its own nature and can be used. People should observe and use it well, so that they can borrow the power of nature to become everything in the world.

Mercury is a highly toxic substance that ordinary people avoid, but in the hands of alchemists and healers, it has other uses. The method of synthesizing mercury has been studied by alchemists since ancient times. The following are some common methods.
One is the method of burning Dan sand. For Dan sand, mercury sulfide is also. Take Dan sand and put it in a special pill furnace to control it under fire. At first, low heat and slow baking make Dan sand evenly heated. When the temperature gradually rises, Dan sand decomposes, mercury gas rises, and it is collected by condensation, and liquid mercury can be obtained. For example, "Baopuzi · Nei Chapters" says: "Dan sand burns into mercury, accumulates and becomes Dan sand." This is a wonderful method of mutual transformation between Dan sand and mercury that the ancients have long known.
Second, the method of replacement of lead amalgam. First make lead amalgam, mix lead and mercury in a certain proportion to obtain lead amalgam. Then, take the ore powder containing mercury, and put it in a container with lead amalgam, and heat it with charcoal fire. Lead is more active than mercury, and can replace the mercury in the ore. After refining, remove impurities to obtain pure mercury.
Third, the auxiliary method of alum. Select a specific alum, such as alum, and mix it with mercury-containing ores. Calcined in a furnace, the alum is thermally decomposed, and the resulting gas reacts with the mercury compounds in the ore to promote the free precipitation of mercury. Mercury can also be obtained by condensation.
Although there were various methods for the synthesis of mercury in ancient times, due to its severe toxicity, extreme caution is required when operating. If there is a slight carelessness, mercury gas leakage will be extremely harmful to human health. Therefore, when the ancients refined mercury, there were many specific places and protective methods to ensure personal safety.

When storing and transporting aluminium stone, there are people who should pay attention to it.
When storing, the first dry environment. Aluminium stone is easy to deliquescence, if it is wet, it is easy to dissolve water and damage its quality. Therefore, it is necessary to choose a high dry place, and hold it in a clay urn, a porcelain altar, etc., and seal it tightly to prevent moisture from invading. And do not mix with other things, especially avoid storing with alkaline things, covering acid and alkali contact, easy to change, and damage its effectiveness.
As for the way of transportation, there are many taboos. When handling, the action should be gentle, and the aluminium stone should not be shocked or collided. Because of its brittle nature, it is easy to break and affect the quality. If it is transported by boat, the cabin and cabin must be dry and waterless, and covered with straw mats, felt cloth, etc., to prevent the grinding of alum stone and hard objects. If it rains on the way, cover it with a cloth in a hurry to cover the wind and rain, and do not let it get wet.
Also, alum stone is slightly poisonous. People who store and transport it should be careful not to let alum stone powder get into the eyes, mouth and nose. If you accidentally touch it, rinse it with water as soon as possible. After work, clean your hands and face to prevent damage caused by accidental ingestion. And the place where it is stored should be clearly marked to show its characteristics, so that everyone knows its precautions, so as not to cause disaster due to negligence.
In this way, in the storage and transportation of alum stone, pay attention to detail, so as to ensure its quality, harmless to people, and make the best use of it.