3-quinolinecarboxaldehyde, 2-chloro-5,7-dimethyl-

The physical properties of 3 + -tetraethylene ore and 2-deuterium-5,7-diethyl-are really related to chemical theory.
The tetraethylene ore is a kind of sulfide of lead. Its shape is usually cubic crystal, gray-black and metallic, and it is brittle and heavy. It likes to be born in hydrothermal veins and is often accompanied by sphalerite and pyrite. Its chemical properties, when exposed to strong acid, produce the odor of hydrogen sulfide, and lead ions can react with many reagents to detect its existence.
As for 2-deuterium-5, this may be a specific compound containing deuterium. Deuterium, the heavy isotope of hydrogen. The physical and chemical properties of deuterium-containing substances are slightly different from those of ordinary hydrogen-containing compounds due to the substitution of deuterium for hydrogen. Deuterium has a large mass, which causes molecular vibration frequency changes, which affects its reaction rate and thermodynamic properties. In chemical reactions, deuterium-containing bonds are more difficult to break than hydrogen-containing bonds, and this property is often valued by chemical kinetics researchers.
And 7-diethyl-, diethyl is basically a common group in organic chemistry. Materials with this group are mostly organic. Its solubility is often easily soluble in organic solvents, such as alcohols and ethers. In terms of chemical activity, the presence of diethyl groups can affect the distribution of electron clouds in molecules and change the activity of the functional groups connected to them. Or it can participate in various reactions such as nucleophilic substitution and electrophilic addition, depending on its surrounding chemical environment.
All these are wonders of the chemical world. The properties of various things, whether revealed in appearance or hidden in reactions, need to be explored with fine methods and scientific principles to clarify their mysteries.

Those with three additions are light beetles; those with two additions are halogen minus five; those with seven additions are dimethyl. The physical properties of these three are different, let me tell you in detail.
Light beetles are warm and soft in nature, and their bodies twinkle like stars, like the light of the sun, so they are called light armor. They can also scatter light in the dark, which can be used as a guide for night travel. If placed in things, they can make things soft and shiny, like a layer of gauze covering them. And its texture is light, it feels like nothing to touch, but it is very tough and not easy to break. And because of its mild nature, it is in harmony with all things, and there is no conflict with many things. It can adjust the nature of all things, so that they complement each other.
Those who reduce the number of halogen by five are strong and strong in nature. Those who are halogen have a salty taste and have the power to erode. Subtract the number of five, and although their nature is slightly slower, they still have a strong tendency. When they come into contact with water, they boil, smoke and fog, and their sound is like thunder. If they touch the skin, it will burn unbearably, and the skin will change color. However, it is of great use in smelting. It can help melt gold stones, make them quick, and remove their impurities, making the refined things very pure. In war, it can also be used as a firearm, its power is amazing, and it can retreat from the enemy thousands of miles away.
Dimethyl, its nature is flat and stable. If its shape is invisible, its smell is unique, and it can be recognized in all things. It always exists among things, although it does not show mountains and dews, it is indispensable. It can be used as a medium in the combination of things, so that different things can be integrated. And it has the ability of heat insulation. If it is used to protect things, it can protect them from high temperature. It is also beneficial to the human body, can help transport and make qi and blood smooth.
These three have different physical properties, whether warm or strong or flat, and are useful in things in the world. Although the softness of light beetles, the rigidity of halogen reduction, and the stability of dimethyl groups go to extremes, they are used in combination and complement each other, so that all things can coexist harmoniously and develop their capabilities. This is the wonder of creation in heaven and earth.

3+-%E5%96%B9%E5%95%89%E7%94%B2%E9%86%9B, this is called a three-pronged tool. Its shape is triangular and sharp, and it is often used for woodworking to repair and carve. Its function can make the surface of the wood smooth and the lines regular, which is very important in the process of woodworking. Woodworking handles this thing, and the catties become wind. According to the shape and meaning of the material, it is carefully carved, and the rough wood is turned into a beautiful tool.
2 + -% E6% B0% AF + - + 5%. This is the genus of the measuring tool, which is measured by the scale. The length, width and thickness of the measurable object. When the craftsman creates the object, he relies on it to determine the size, and the millisecond must be checked to get the fit of the object, which is accurate. In building construction, equipment production and other skills, all are indispensable, accurate size, related to the success or failure of the whole.
7+-%E4%BA%8C%E7%94%B2%E5%9F%BA, this is the foundation of the structure, and it is the fundamental support for the construction. With it as the foundation, it can accumulate bricks and stones, frame beams, and build high-rise buildings. In civil engineering, a solid foundation is the long-term guarantee of the building. If the foundation is not strong, the building will collapse. Therefore, when the craftsman builds the foundation, he must do his best to choose excellent materials and fine construction, so that the foundation is as solid as a rock.
All these tools are the sharp tools of the craftsman. Among the various skills described in "Tiangong Kaiwu", each performs its own duties and complements each other. With these tools, craftsmen use their ingenuity and skillful skills to turn natural materials into all kinds of beautiful things in the world, whether for daily use or for high-rise buildings, showing endless wisdom and creativity, and achieving the inheritance of skills through the ages.

What is the synthesis method of 3 + -photoether, 2 + -chloro-5,7-diethyl-? I will answer this question in the style of "Tiangong Kaiwu" in ancient Chinese.
If you want to combine 3 + -photoether, you need to examine its physical and chemical properties in detail. For photoether, you may need to obtain it through a specific actinic reaction. Prepare the corresponding raw materials first, find a clean vessel, and interact with the reactants at a suitable temperature and light conditions. The power of light can initiate the change of molecules and promote their synthesis. Or choose a light source, according to the amount of raw materials, control the length and intensity of the light, step by step, observe the reaction, adjust it at the right time, and get 3 + -photoether.
As for the synthesis of 2 + -chlorine-5, chlorine is an active element. To obtain this substance, first take the substrate containing the corresponding group. React with chlorine, or add a catalyst in a suitable solvent, to increase the speed of the reaction. The addition of chlorine needs to be measured, more is too much, and less is insufficient. The change of the reaction system, temperature and pressure need to be paid attention to. In a mild state, chlorine is ingeniously embedded in the substrate to form a 2 + -chlorine-5 structure.
And the synthesis of 7-diethyl -, diethyl, an organic group. When using suitable organic raw materials, seek by condensation or substitution. First select the source containing ethyl, and connect the ethyl group through specific reaction steps, such as alkali-catalyzed condensation. During the reaction, prevent the generation of side reactions, choose pure raw materials, and control the reaction conditions, so that the reaction is in the direction of generating 7-diethyl. Every step needs to be carefully reviewed, washed, filtered, steamed and other operations, and applied in sequence to obtain pure products.
In summary, the synthesis of various substances requires clear physical properties, chemical properties, and controlled reaction conditions. Only in a rigorous state and according to reasonable steps can it be expected to succeed.

In the storage and transportation of gunpowder, sodium cyanide, dimethyl and other items, there are indeed many key precautions that need to be carefully followed.
Gunpowder is a dangerous item with explosive properties. When storing, it needs to be placed in a special warehouse. This warehouse should be away from crowded places, traffic arteries and important facilities to prevent accidental explosions from affecting many. The building structure of the warehouse must be sturdy and have good fire and explosion-proof performance. The temperature and humidity in the warehouse should also be strictly controlled. Generally, the temperature should be maintained in a more suitable range, and the humidity should not be too high, so as not to affect the stability of the gunpowder. And the warehouse should be divided into clear areas, and different types and batches of gunpowder should be classified and stored, so as not to be confused. When transporting, it is necessary to use special transportation tools that meet safety standards. The transporters need to be professionally trained and familiar with the characteristics of gunpowder and emergency response methods. Avoid severe bumps and collisions during transportation to prevent explosions caused by external forces.
Sodium cyanide is a highly toxic substance. When storing, it should be placed in a tightly sealed container, stored in a cool and well-ventilated place, away from fire and heat sources. Because of its strong toxicity, the warehouse should set up strict access management system, and no unrelated personnel should enter. And the warehouse should be equipped with professional emergency rescue equipment and materials around for emergencies. When transporting sodium cyanide, the transport vehicle needs to hang obvious highly toxic signs, and take strict protective measures to prevent leakage. In the event of a leak, emergency plans must be activated immediately, surrounding personnel evacuated, and professionals wear protective equipment for proper handling.
Dimethyl should not be ignored in storage and transportation. Storage should choose a cool, dry and well-ventilated warehouse, away from oxidants, acids and other substances that may react with it. Electrical equipment in the warehouse should be explosion-proof to prevent the generation of electric sparks from causing danger. When transporting, it is necessary to ensure that the container does not leak, collapse, fall or damage. The means of transportation must have corresponding fire protection and anti-static measures. Pay close attention to the status of the goods during transportation, and deal with any abnormalities in a timely manner.
These dangerous goods must be strictly implemented in accordance with relevant regulations and safety standards during storage and transportation, and must not be slack at all to ensure that personnel safety and the environment are not endangered.