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1,2-Benzisoxazole-3-methane sulfonate, what is the chemical property of the sodium salt?
Mercury, or mercury, is a silver flowing liquid with unique chemical properties.
Mercury is liquid at room temperature, which is its remarkable characteristic. Most metals are solid at room temperature, but mercury can flow, like a smart silver liquid, tossing around in a container. And the melting point of mercury is extremely low, only -38.87 ° C. It turns into a fluid when it is slightly warm.
Mercury is highly volatile and slowly evaporates in the air, forming mercury vapor. This vapor is colorless and odorless, but toxic. If inhaled for a long time, it will seriously damage the human nervous system, kidneys and other organs.
Mercury is chemically active and can form amalgams with many metals, such as gold and silver. The ancients took this property to extract gold and silver, mixing gold and silver ore with mercury to form amalgam and then heating, the mercury evaporates, leaving gold and silver.
Mercury can also participate in a variety of chemical reactions, heating with oxygen to form mercury oxide. Mercury oxide is a red powder, and this reaction is of great significance in chemical experiments and industrial production.
Although mercury is a dangerous chemical substance, it is indispensable in many fields. For example, in thermometers and sphygmomanometers, it measures temperature and pressure with its thermal expansion and contraction characteristics; in electrical switches and battery manufacturing, mercury is also found. However, due to the high toxicity of mercury, it is now used more cautiously, and alternative materials are sought in many occasions to reduce the harm to the environment and human body.
1,2-Benzisoxazole-3-methane sulfonate, sodium salts are mainly used in which fields
"Tiangong Kaiwu" says: "Mercury, that is, mercury, is the liquid of Dan sand. Its quality is similar to silver, but it is extremely toxic. Gold filling, silver plating, and copper coating are all used." Mercury and its compounds are mainly used in the following fields:
1. ** Metallurgical field **: The amalgam method has been used to extract metals such as gold and silver in metallurgy. For example, in ancient times, people used the property that mercury can form amalgams with gold to extract gold from ores. Mixing gold-bearing pyrite and other ores with mercury, the gold will dissolve in the mercury to form amalgam, and then heat the amalgam, and the mercury evaporates to obtain gold. Although this process is not described in detail in "Tiangong Kaiwu", the relationship between mercury and metals is mentioned, which reflects its application in metallurgy.
2. ** Chemical industry **: Mercury can be used as a catalyst for certain chemical reactions. For example, in the early stage of the development of the chlor-alkali industry, mercury cathodic electrolysis of salt water to prepare caustic soda and chlorine gas, and mercury as a cathode material participated in the reaction. However, due to the toxicity of mercury, this method was gradually phased out.
3. ** Medicine field **: In ancient times, mercury and its compounds were often used in medicine. Such as Dansha (mercury sulfide), which was considered to have calming and other effects in some ancient prescriptions. However, due to the toxicity of mercury, modern medicine has strict restrictions on its use.
4. ** Instrument manufacturing **: Mercury is widely used in the manufacture of thermometers, barometers and other instruments due to its uniform thermal expansion coefficient and non-wetting glass. Although there were no modern precision instruments in the era of "Tiangong Kaiwu", the physical records of mercury laid the foundation for the application of instruments in later generations.
5. ** Military and Alchemy **: In ancient military, mercury may have been used to make some special weapons or fireworks. In alchemy, mercury is an important raw material. Alchemists believe that through refining mercury and its compounds, immortality pills can be obtained. Although there is no scientific basis, it reflects the special status of mercury at that time.
What are the preparation methods of 1,2-benzisoxazole-3-methane sulfonate, sodium salt?
"Tiangong Kaiwu" said: "It is fried with white lead, also known as black lead." Now, to make a vessel with alum, the method is as follows:
To make a vessel with alum, first take a number of white lead and put it in the crucible. Use charcoal fire to make the lead melt liquid. The melting Prevent the escape of This is poisonous, and it is even more poisonous for people. Wait for the liquid to melt and flow, and put it into the mold. The mold, made of clay or wood, is shaped according to the needs of the vessel. The injection is appropriate and fast, so as not to cause the liquid to condense in the crucible. When the liquid is cold and solidified, be careful that the mold is first formed. It can be ground to make light, and make beauty.
There is also a way to make a stone. If it is clear, take the white stone first, and smash it into small pieces. Place it in a large kettle, add water and boil it. The water boils and the stone dissolves, so as to distribute the liquid and remove the slag. The clear liquid obtained in the water is moved to the water, and it is cold. At the end of the day, there will be clear crystals precipitated at the bottom. This crystal is collected, and it is baked with a small fire to remove its moisture. If it is collected, take the stone and soak it in sulfuric acid. On the seventh day, the acid of the stone is reversed, and the solution is dissolved. The same is removed, and the solution is added to the water. Let it cool again, and the crystal is ready. It is also dried on a small fire to obtain a finished product. To make this appliance, the workmanship is complex, and it can be turned into a tool with heart, for the needs of civilian use.
What are the safety precautions for 1,2-benzisoxazole-3-methane sulfonate, sodium salt?
"Tiangong Kaiwu" has a saying: Mercury is the thief who catches the treasure, and its nature is fierce and fierce, so you should be cautious when it comes to lead and mercury utensils. Today's safety precautions for lead and mercury are described in detail as follows.
First, mercury is volatile, and the vapor is highly toxic, so it must be well ventilated in the smelting or use of lead and mercury. If the air in the residence or workshop is not smooth, mercury vapor will accumulate, and after people inhale it, it will easily damage the nervous, digestive and urinary systems, endangering life. It is advisable to set up ventilation windows, or use skin bags and other objects to ventilate, so that the air can circulate.
Second, lead and mercury utensils must be properly sealed. Mercury flows, and it is easy to seep out if there is a slight gap. If the lead and mercury are damaged and leaked, the mercury will fall to the ground, which will quickly disperse into countless small mercury beads, which are difficult to collect and continue to evaporate. Once sprinkled, cover it with sulfur powder as soon as possible, so that the mercury and sulfur can be combined into mercury sulfide to reduce toxicity.
Third, those who operate lead and mercury should wear protective equipment in front of protective equipment. Leather gloves should be worn to prevent mercury from contacting the skin and penetrating into the body. The face also needs protection. You can wear a mask or gauze to avoid mercury vapor from entering the mouth and nose. And after work, be sure to wash your body and change clothes to prevent mercury residue.
Fourth, store lead and mercury in a cool and dry place, away from fire and heat sources. Mercury is easily volatile when heated, and lead may also change when heated, causing damage to appliances and mercury leakage.
Fifth, be familiar with the symptoms of lead and mercury poisoning and the treatment methods. If a person feels headache, dizziness, fatigue, insomnia, dreaminess, or oral erosion, swollen gums, and loss of appetite, it may be a sign of lead and mercury poisoning. Seek medical attention as soon as possible.
All matters involving lead and mercury are related to life and safety. Do not slack off a little, and must abide by the above items to ensure safety.
What is the market outlook for 1,2-benzisoxazole-3-methane sulfonate, sodium salt?
At present, the market prospect of beryllium copper anisoners, iridium-tantalum acid urns, and lulls is actually related to the rise and fall of various industries, and cannot be ignored.
Beryllium copper anisoners are of strong quality and good conductivity, and are often the key materials in the fields of electronics and communications. In today's world, electronic devices are becoming more and more sophisticated, with increasingly complex functions, and their performance requirements are becoming more and more demanding. This device can respond to high-frequency vibrations, and its sound is clear and stable, so it is indispensable for sound and alarms. And with the rise of the Internet of Things, the trend of all things interconnected is becoming more and more prosperous, and all kinds of sensing and transmission devices rely on this device. Its market prospect is still the rising sun, and the light is gradually blazing.
Iridium tantalum acid urns are mostly used in chemical and scientific research places. With their corrosion resistance and corrosion resistance, they can be used as reservoirs for various strong acids. The chemical industry is developing rapidly. The research of new materials and the creation of new processes all require precise experiments and storage. This urn can maintain the purity of strong acids, is not stained by foreign objects, and does not damage the body. Looking at today's chemical industry, moving towards high-end and fine processing, the demand for it will also increase. As for the field of scientific research, exploring the unknown, experimenting a lot, and demanding the quality and performance of utensils, iridium tantalum acid urns are just what they need, and the future market should be broad.
Those who hold urns are often involved in the smelting and refining of precious metals such as gold and silver, and are related to the industry of finance and jewelry. Gold is always a sign of wealth. Although its price fluctuates from time to time, the heart of the world chasing gold has not changed. Jewelry ornaments are luxurious and bright, and they also depend on fine craftsmanship. The quality of the urn can ensure that the gold is filled evenly and firmly. In today's world, although the economy is turbulent, the demand for high-end consumption is still endless, and the industry of jewelry and collection is still alive. In the meantime, the urn has its own place of use, and the prospect of the city should not be underestimated.
To sum up, beryllium copper heterophoner, iridium tantalum acid urn, and lutein urn have considerable market prospects in their respective fields due to the trend of the times and the progress of the industry.
