1,3-Benzothiazole-2-sulfonyl chloride

The so-called "blue neon gas" is a rare gas. Its physical properties are quite unique.
First of all, its color state, neon gas is colorless at room temperature and pressure, but in the discharge tube, when high voltage is applied, it will emit brilliant orange-red light. If it appears blue light, or due to doping with other substances, or due to special conditions. But pure neon gas normally emits non-blue light.
Second, its density, neon gas density is slightly smaller than air, about 0.9002g/L (under standard conditions), this characteristic makes it unique in some gas application scenarios.
Furthermore, in terms of its solubility, neon gas is extremely insoluble in water, which makes it in water-related systems, basically does not interact with water, and maintains its own gaseous state.
Also known as its boiling point, the boiling point of neon gas is -246.08 ° C. The very low boiling point indicates that to liquefy it, extremely low temperature conditions are required. And its melting point is -248.67 ° C, which is also among the very low.
In addition, neon gas is chemically stable and belongs to a class of inert gases. It is difficult to chemically react with other substances at room temperature and pressure. This property makes it useful as a protective gas in many occasions to prevent other substances from being oxidized or reacting. In short, if the blue neon gas emits light under the special conditions of pure neon gas, it is necessary to pay attention to its unique luminous conditions; if it is doped with blue, its basic physical properties are still mainly based on the characteristics of neon gas itself, but due to doping or slightly different, it is generally consistent with the inherent physical properties of neon gas.

The sea serpent is a natural phenomenon formed by the refraction of light in the atmosphere. Its main uses are as follows:
First, in the field of navigation, ancient seafarers often regarded mirages as a sign of good or bad luck. When they were on a voyage, if they saw a mirage, they either thought that there was a auspicious omen ahead, which would ensure smooth sailing; or they thought that it was a sea monster that would bring disaster. For example, there are relevant records in the Book of Historic Records and Heavenly Officials, which shows that the ancients attached great importance to the relationship between mirages and the fortune of navigation. Although this concept has no scientific basis, it affects the psychology and decision-making of navigators, and affects the planning of sailing itineraries to a certain extent.
Second, in literary creation, mirages, because of their fantastical grandeur, are like celestial palaces and castles, providing many inspirations for literati and writers. Literati use the illusory and ethereal mirages to express the feeling that life is like a dream and things are impermanent. For example, Bai Juyi, a poet in the Tang Dynasty, wrote: "I suddenly heard that there are immortal mountains on the sea, and the mountains are in the void. The pavilion is exquisite and five clouds rise, and there are many fairies in it." This scene is like a mirage, which creates a realm of ethereal fantasy and enhances the artistic appeal and romanticism of the work.
Third, at the level of meteorological research, the appearance of mirages is closely related to specific meteorological conditions. Although the ancients did not fully understand its scientific principles, they could speculate on meteorological changes based on the appearance of mirages. If mirages appear frequently, it may indicate that the local air humidity, temperature, air pressure and other meteorological factors are in a special state, and then infer that the recent climate will be abnormal, which has certain guiding significance for ancient agricultural production and daily life arrangements.

"Heavenly Works", The combination of nitrate and sulfur requires a refined method. The mixture of sulfur and flame nitrate, this is the first step to take the black fire.
To obtain sulfur, it is often taken from the stone. The sulfur-containing stone is placed in a dense container and baked at a suitable temperature. Sulfur is lost due to exposure, and when it is cold and solidified, this is the way to improve sulfur.
The extraction of flame nitrate is difficult. It is often used in soil that contains nitrate, soaked in water, so that the nitrate dissolves in water and sinks to the bottom of the water. In this case, the heat needs to be controlled. If the heat is not good, the degree of nitrate will be affected.
Until the two are synthesized, first extract the refined sulfur and nicotine, and prepare them according to a specific ratio. In ancient times, the proportion of one sulfur, two nitrates and three charcoal is mostly used. The sulfur and nitrate are ground into powder, and the chestnut is required to be uniform. Then add the amount of charcoal powder, and the three are mixed evenly. When mixed, the mixture needs to be refined to avoid accidents due to friction and collision.
After mixing, this mixture has the shape of a fire. However, its performance still needs to be refined, and the proportion of raw materials and the degree of grinding can be slightly changed to achieve the effect of different fires. It is used for general purposes such as cooking and fire. In this way, the synthesis method of sulfur and flame nitrate is also obtained.

Mercury is a highly toxic substance. When storing and transporting it, you need to pay close attention to the following things:
The first thing to pay attention to is the choice of storage equipment. It should be stored in a sturdy and sealed container to prevent the leakage of mercury. If a special mercury bottle is made, its material must be resistant to the corrosion of mercury, and the seal must be tight to prevent the evaporation and escape of mercury. This is the basis for protecting the environment and personal safety.
Second, the storage place is also very critical. It is advisable to choose a cool, dry and well-ventilated place. Do not place it in a high temperature or humid place. High temperature will promote the volatilization of mercury, and humidity or cause the container to rust and increase the risk of leakage. And the storage place should be kept away from fire sources and flammable materials to prevent accidents.
Furthermore, when transporting, strict regulations should be followed. Mercury must be properly fixed in the transportation container to prevent it from being damaged due to shaking and collision during transportation. Transport personnel should also be professionally trained to be familiar with the characteristics of mercury and emergency treatment methods.
In addition, whether it is storage or transportation, there must be clear signs, clearly indicating "highly toxic" and other words to alert everyone. It is also necessary to regularly inspect storage and transportation equipment on a daily basis to check for any signs of leakage. Once a mercury leak is detected, emergency measures should be initiated immediately, evacuate personnel, seal the scene, and quickly clean up in a professional manner. It must not be taken lightly. In this way, Fangbao mercury is safe during storage and transportation, protecting people's safety and the environment.

There are things in the world, called cyanic acid, which is a poison. Its environment is the shadow of people's health, which cannot be ignored.
If cyanic acid is in the environment, it is very large. In the air, this poison is easy to disperse. If people inhale it, they will be harmed immediately. And it can also be retained in the soil and water sources, causing the soil to lose fertility, the water source to be polluted, and the food to lose its vitality. Flowers and plants cannot be destroyed, and they cannot be preserved, and birds cannot be avoided when they go away. The balance of life is broken because of it.
When it comes to humans, cyanic acid is particularly harmful. It can block the respiration of the cells and cause the incapacitation of the cells., heart, vomiting, coma, convulsion, and even death. When exposed to the environment containing this poison, both the mental system and the cardiovascular system are affected. When the strength is reduced, the mind is in a trance, and the function of the heart is stunted. A person's life is once.
Furthermore, if the use of cyanic acid is not properly managed, it will be a big disaster. If the waste material of the industry is accidentally discharged, the cyanic acid will enter the rivers, lakes and seas, and the four sides. Therefore, in order to ensure the cleanliness of the environment and the well-being of people, it is necessary to be careful to treat cyanic acid, and control it, so as not to cause harm to the world. Make the mountains and rivers follow the rules, and the characters are salty and good.