5,7-diiodo-8-hydroxyquinoline

Alum-based Fang Guang has many main uses. Alum-based Fang Guang is quite crucial in the art of alchemy. The ancients refined alchemy, wanting the transformation of gold and stone, in order to achieve the wonder of longevity. Alum-based Fang Guang can be an important medicinal guide, assisting the mutual reaction of various gold and stone materials, and prompting it to undergo wonderful changes, or become pills, or into magical things.
In metallurgy, it is also indispensable. It can be used to separate impurities and make metals purer. When the ore is melted in the furnace and cast with alum-based square light, it can combine with impurities and float on the liquid metal, which is easy to remove, thereby improving the quality of the metal and making the gold, silver, copper and other metals more pure. It is suitable for creating all kinds of utensils, whether it is exquisite jewelry or sturdy weapons, all of which are of better quality because of the purity of the metal.
Furthermore, in the printing and dyeing industry, it also has great achievements. It can be used as a mordant to make the dye adhere more firmly to the fabric. When the fabric is immersed in the dye, the alum-based square light first interacts with the fabric fibers, and then the dye combines with it. In this way, the color of the printing and dyeing will not fade for a long time, and the color will be bright. The clothes, brocade, etc. made are more beautiful and durable, adding a lot of style, and are widely used in the production of folk clothing and court fabrics.
And in the field of medicine, it also has contributions. It has certain medicinal properties, or can be used externally to treat sores and eczema, and can relieve skin diseases by its ability to restrain dryness and dampness; or it can be taken internally. For the conditioning of certain diseases, although the dosage needs to be cautious, it can also play a certain effect, adding a unique medicine to the ancient people's remedies for treating diseases and saving people. In short, alum-based light plays an important role in many fields, which cannot be ignored.

The physical properties of alum-based square light are quite unique. Alum-based square light objects often have the sign of bright colors, and their colors may be bright and gorgeous, or elegant and soft, and they are pleasing to the eye.
Furthermore, its texture can also be aged. It may be delicate and warm, with smooth tentacles, like suet jade; or it has a certain hardness, can withstand a certain external force and is not easily damaged, and it is not indestructible, and may also be broken in case of strong impact.
And alum-based square light objects are unique in optical properties. Its light transmittance is good, allowing light to pass through and produce a unique refraction effect. It is like a dream bubble and is very beautiful. When time enters it, it scatters out, forming a wonderful light and shadow, just like the magic of nature.
And its thermal properties cannot be ignored. When heated, it may change slowly, or have a color change, or a slight change in texture, all of which are characterized by its heating. And at room temperature, it can maintain a relatively stable state and does not easily undergo qualitative changes.
Although its electrical properties are not widely known, there are still studies. Or under certain conditions, it can exhibit weak electrical conductivity, which cannot be compared with good conductors, but adds a wonderful feature to its characteristics. In short, the physical properties of alum-based square light, such as color, quality, light, heat, electricity, etc., constitute a unique charm and attract exploration.

The chemical properties of alum-based square light are quite stable. Alum-based square light, which often exists in various minerals, has undergone changes over time, and can maintain its properties.
Looking at its structure, alum-based square light is intertwined with each other and forms a stable state. This structure makes it highly resistant to external factors. In common chemical environments, acids, bases and other substances are difficult to react easily with. In case of ordinary acids, such as dilute hydrochloric acid and dilute sulfuric acid, alum-based square light does not easily combine with it, and can only react under extreme conditions such as strong acid and high temperature.
In redox reactions, alum-based square light also shows stability. Due to its relatively stable internal electronic structure, it is not easy to gain or lose electrons, so it is difficult to be oxidized or reduced. That is, when encountering strong oxidizing agents or reducing agents, it is difficult to change its chemical properties without specific conditions.
Furthermore, alum-based light is also stable at different temperatures. At room temperature, its properties are peaceful. Even if the temperature rises slightly, if there is no drastic change, its chemical properties will not change significantly.
In summary, the chemical properties of alum-based light are stable. In natural and general chemical environments, it can maintain its own characteristics for a long time, and it is not easy to combine or decompose with others.

In the process of making saltpeter, it is necessary to pay attention to the general matters.
The first important raw materials are the raw materials. The high-quality raw materials must be obtained, and the amount of saltpeter is very important. If there are many, the degree of improvement will increase sharply, and the degree of saltpeter obtained will also be guaranteed. Therefore, the quality of the material must be inspected for its color, taste, and quality. Those who choose the correct color and the correct color should use it.
The method of improving the quality should be especially careful. The method of water dissolution is often used, and the fire nitrate dissolves in water. In this case, the amount of water is widely studied. If there is too much water, the solution is dilute, and the steaming time is very high. If there is less water, the fire nitrate can be fully dissolved, and there is still a lot of water left. When it dissolves, it also needs to be mixed, and the fire nitrate should be dispersed to accelerate the dissolution.
After steaming, the heat will come to an end. If the fire is too fierce, the solution will boil for a long time, and it may be released, and it is easy to cause saltpeter to decompose due to local stress; if the fire is too weak, the steaming will be slow, and it will take only a long time. Therefore, it is necessary to boil slowly with a slow fire, and pay close attention to the melting of the solution. When the temperature is high and there are crystals precipitating, it can be stopped.
The cold crystals should not be neglected. The speed of the solution cooling, the shape of the shadow crystals. Cold is fast, the crystals are small and easy to wrap in; cold is slow, and the crystals are diffuse. It is advisable to place it in a well-connected area to make it naturally cold, so that you can get nitrate crystals with a good shape and a high degree of temperature.

It is very important for the use of high-quality materials. The pore size of the material is matched by the size of the nitrate crystals, which not only keeps the crystals from being lost, but also makes the solution go out. The crystals of the material need to be washed with water a little bit to remove the surface of the product.
In this way, the nitrate is extracted from the fire to make saltpeter, and every step is interlocked. If there is a little carelessness, the product of saltpeter will be affected. Those who are careful about this matter must be careful to get the best saltpeter.

The art of flintlock fire has been around for a long time. In this world, there are three common ways to get flintlock fire.
First, use the sun flintel to concentrate light to make fire. The sun flintel, the gold flintel, is also concave in shape like a mirror. When it is used to face the sun, concentrate light on flammable things such as moxa velvet, and wait for it to be heated and smoke, and blow a little protection, then the fire can be obtained. This is a technique commonly used in ancient times. The ancestors of the past often used this method to make fire for cooking, keeping out the cold, and lighting.
Second, use a fire sickle to strike a stone to make a fire. The fire sickle, an iron tool, strikes the flint, splashes out sparks, and falls on the tinder. Tinder, made of mugwort and other things, is flammable. Mars touches it and burns immediately. This is also a commonly used method, convenient and easy to do, especially when there is no other fire in the wild.
Third, use a convex lens to concentrate light to make a fire. Convex lenses, made of transparent glass or crystal, have the ability to concentrate light. When it is against the sun, focus the light on flammable things, such as hay, wood chips, etc. When the temperature rises, it reaches the ignition point, and the fire occurs. This is a method derived from technological progress in later generations, and it is also quite effective.
All three of these are common fire methods. Although times have changed, fire is very important to people. All these methods of making fire, or the legacy of the past, or the technology of the present, are the crystallization of human wisdom in making fire.