Thiophene-3-ol,tetrahydro-, (S)-

Because I don't know the specific product, the following is an example of "cinnabar", modeled on the classical style of "Tiangong Kaiwu" to answer:
Cinnabar, also known as Dansha, is a common mineral. Its color is bright red, heavy in quality and brittle in nature. "Tiangong Kaiwu" has a saying: "Dansha is the most common in Chen and Jinerzhou." Among them, Chenzhou, in today's Yuanling area of Hunan Province, and Jinzhou in today's Sichuan Province, is famous for its cinnabar.
The extraction of cinnabar is quite difficult. Find its veins in the mountains, dig the ground and get them. Its ore is first produced, or mixed in the stone and soil, and needs to be carefully selected. Then it is refined by the method of water flying to remove its impurities, and pure cinnabar can be obtained.
The use of cinnabar has been quite extensive throughout the ages. In the way of alchemy by alchemists, cinnabar is often used as a medicine, thinking that taking it can prolong life and ascend to immortality. Although there is no scientific evidence for this, it was popular at that time. In calligraphy and painting pigments, the color of cinnabar does not fade for a long time, and the color is bright. It is valued by scholars and writers. It is used to paint danqing wonderful products. Over the years, vermilion remains the same. In folk customs, cinnabar also has the meaning of warding off evil spirits and praying for blessings. It is often made into accessories and worn by children for safety.
The chemical name of cinnabar is mercury sulfide, and the chemical formula is HgS. Its chemical properties are relatively stable, and it can also change when it encounters a hot topic or a strong oxidant. Although the ancients did not know the name of its chemistry, in practice, they have made good use of its characteristics to add a splendid vermilion to the inheritance of Chinese civilization.

The (S) structure of this product is quite unique. Its structure is exquisite and complicated, like a natural creation, and it is ingenious. Looking at it, its components are connected intimately, as if they are natural, without the slightest sense of obtrusiveness.
As far as its frame is concerned, the materials used are strong and delicate, and they are closely fitted with each other, which seems to be able to resist the erosion of time and the impact of external forces. The layout of each part is reasonable and well-proportioned. Every turn and every connection contains profound meaning, and it is by no means random.
Furthermore, its internal structure is more delicate. Many subtle components cooperate with each other, such as the listing of stars, each performing its function, but working together to achieve the overall effectiveness. This structure design takes into account both practicality and stability, not only to ensure that the product can withstand the corresponding pressure in daily use, but also to maintain a good condition in long-term operation.
Its details are exquisitely carved and the texture is clear, just like the works of art carefully carved by skilled craftsmen in ancient times, showing a very high level of craftsmanship. This structure is by no means achievable by ordinary skills. It must be a combination of a lot of wisdom and experience, and it has been repeatedly reviewed and improved to achieve such an exquisite and exquisite form. Just like what Tiangong Kaiwu said, it brings together the essence of nature and human strength to achieve such a unique structure, which is amazing.

The properties of tetraammonia copper (ⅱ) -3 -ammonia are: ammonia is a colorless gas with a strong pungent odor. It is very soluble in water at room temperature and pressure, and can dissolve about 700 volumes of ammonia in one body of water. This property makes the aqueous solution of ammonia alkaline, because it will react in water as follows: $NH_ {3} + H_ {2} O\ rightleftharpoons NH_ {3}\ cdot H_ {2} O\ rightleftharpoons NH_ {4} ^ {+} + O H ^{-}$。
Ammonia is reductive and can react with many oxidants. For example, in the presence of a catalyst and under heating conditions, ammonia can react with oxygen to form nitric oxide and water. This is an important reaction step in the industrial production of nitric acid. The chemical equation is: $4NH_ {3} + 5O_ {2}\ xlongequal [\ triangle] {catalyst} 4NO + 6H_ {2} O $.
Ammonia can react with acid to form ammonium salts. Taking the reaction of ammonia and hydrochloric acid as an example, it will quickly combine to form ammonium chloride. The chemical equation is: $NH_ {3} + HCl = NH_ {4} Cl $. This reaction phenomenon is the formation of white smoke, which is often used to test the presence of ammonia. < Br >
Ammonia also has coordination properties. In copper tetraammonium (II), ammonia molecules act as ligands to form coordination bonds with copper ions by virtue of their lone pair electrons on nitrogen atoms, thus forming stable complexes.
Ammonia can also be liquefied at room temperature, and liquid ammonia absorbs a lot of heat when vaporized, so liquid ammonia is often used as a refrigerant. In addition, ammonia is used as a nitrogen fertilizer raw material in agriculture and an important basic raw material for the preparation of various nitrogen-containing compounds in industry.

This product is mainly used in the following fields:
One is used in the land where the farmland is harvested. Farming labor, irrigation needs are essential. This product can be used to guide the flow of water, so that the fields are moisturized. Whether it is a plain fertile field or a mountain terraced field, it can use its power to make the water evenly distributed, helping the crops to thrive and achieve the effect of a bumper harvest.
Both, the place of garden landscape. In the garden, there are many flowers and trees, and an irrigation system is indispensable when creating a beautiful scenery. This product can skillfully plan the path of water flow, or become a babbling stream, or a smart fountain, which not only meets the needs of plant irrigation, but also enhances the smart beauty of the garden and brings a pleasing visual experience to the viewer.
The three, the land of mountains and hills. The terrain here is complex and the distribution of water sources is uneven. The product can be adapted to local conditions and laid according to the terrain, leading high water sources to low places, solving the problem of irrigation of crops in mountainous areas, and also providing convenience for the living water of mountainous residents, promoting economic development and life improvement in mountainous areas.
Four, urban green plant maintenance places. In the city, the streets are lined with green trees, and the parks are full of flowers. This product can be used to realize automatic irrigation, save manpower and material resources, ensure that urban green plants are always full of vitality, improve the overall environmental quality of the city, and create a comfortable and livable living environment for residents.

The method of making a certain utensil is complicated and exquisite, and it cannot be obtained without careful study.
The first thing you need to choose is good materials. The quality of the material is related to the quality of the utensil. For example, when casting a sword, choose fine iron, its texture is tough, and it can be used to cast a sharp blade. After picking good materials, it must go through multiple processes of refining to remove its impurities, so that the material is pure and dense.
The second is design, which is the soul of the utensil. The craftsman needs to carefully conceive the shape according to the purpose and aesthetic style of the utensil. Or simple and elegant, or exquisite and chic, every line and every arc contains the craftsman's ingenuity. Such as making porcelain, the shape of the utensil or imitating the ancient objects of the Shang and Zhou Dynasties, solemn and calm; or take the natural state, smart and elegant.
And then there is the production process. Taking wood carving as an example, there are techniques such as relief carving, transparent carving, and round carving. The relief carving is clearly layered and shows the beauty of three-dimensional on the plane; the through carving is exquisite and clear, as if light and shadow are shuttling through it; the round carving shows the object in an all-round way, lifelike. When operating, the craftsman moves the knife like a pen, and the priorities are determined according to the shape. If there is a slight mistake, all previous efforts will be lost.
And in the production process, the heat, humidity, etc. are also crucial. When burning pottery, the heat is not properly controlled, and the pottery may crack or grow, making it difficult to make a good product. Therefore, the craftsman must always pay attention and adjust it in a timely manner based on experience and skills.
After the utensils are made, they still need to be Or polish the surface to make it as smooth as a mirror, or apply paint and decoration to add its artistic beauty. This final process, like the finishing touch, makes the charm of the utensils appear.
All these are the methods of making the utensils, interlocking and indispensable, showing the wisdom and ingenuity of ancient man-made objects.