What are the main uses of reagent hydrofluoric acid?

The medicinal bait is a good prescription for treating diseases and saving people. Its main purpose is related to the maintenance of health and the removal of diseases.

Ancient doctors know the wonderful use of medicinal bait. If people feel wind and cold diseases, their limbs are sore, and they are cold and hot, at this time they can use the medicinal bait that is warm to solve the table, so that the evil of wind and cold can be solved from the table. Because the medicinal bait has the power of helping the right and evil, it can adjust the imbalance of yin and yang in the human body, replenish the lack of qi and blood, and have more than enough real and evil.

When the viscera is in violation, the medicinal bait can also play a key role. If the spleen and stomach are weak, the transportation and transformation are abnormal, and there is less food and abdominal distension, loose stools, etc., the bait of strengthening the spleen and stomach can be used to help the spleen and stomach restore the function of transportation and transformation. Another example is that the heart is deficient in yin, the mind is out of nourishment, and when you see the appearance of upset and insomnia, you can use the bait of nourishing yin and calming the mind to calm the mind.

And the use of the bait can not only cure the disease, but also prevent the disease. As the "Yellow Emperor's Internal Classic" said: "If you don't cure the disease, you will cure the disease." Taking the bait of health care reasonably on weekdays can enhance the physique, improve the ability to resist external evil, and make the righteous qi stored in the inside

The medicinal bait is either a decoction, which is tortured with water, and the essence is taken, which is easy to absorb and has rapid medicinal power; or a pill, which is made into a small pill, which is easy to take and store, and the medicinal effect is gentle and lasting; or a powder, which is ground into a fine powder, which is easy to take and absorbs quickly.

In short, the medicinal bait occupies an important place in the field of treatment and health care due to its unique effect. Doctors carefully match the medicinal bait according to the patient's condition, constitution and other factors, in order to seek the best curative effect and escort the health of the people.

What are the safety precautions for reagent hydrofluoric acid?

To make a caustic soda solution, you need to pay attention to many safety matters. The first thing to bear the brunt is the selection and disposal of raw materials. Caustic soda is sodium hydroxide, and its preparation is often by electrolysis of saturated salt water. The salt must be pure and free of impurities mixed in, otherwise it may cause abnormal reactions and affect the quality of caustic soda. And when obtaining and handling salt, it should be handled with care to prevent it from being scattered, and to avoid mixing with other chemicals.

During the electrolysis process, the installation and operation of the device is extremely critical. The appliance used must be strong and resistant to alkali corrosion, and the electrode material should be carefully selected to ensure that it can conduct electricity stably and does not react adversely with the electrolyte. After the device is built, its sealing should be carefully checked to prevent electrolyte leakage and cause harm. When operating, it is necessary to strictly follow the regulations to control parameters such as current, voltage and temperature. If the current is too strong or the reaction is too fast, it will cause overheating or even explosion; if the temperature is not appropriate, it may affect the reaction efficiency and the purity of caustic soda.

Furthermore, safety protection is essential. Operators must be fully armed and wear alkali-resistant protective clothing, which can effectively block the erosion of caustic soda on the skin. Wear a protective mask and goggles to protect the eyes from lye splashes. Wear thick alkali-resistant gloves to prevent contact with lye. The working area should be well ventilated, and harmful gases such as chlorine gas produced by electrolysis should be discharged in time. Once chlorine gas leaks, it is not only pungent and smelly, but also endangers the human respiratory and nervous systems.

In addition, after the caustic soda solution is made, storage is also exquisite. It needs to be contained in a corrosion-resistant container and sealed tightly to prevent the absorption of carbon dioxide in the air and deterioration. The storage place should be dry, cool, and away from fire sources and flammable materials. Although caustic soda is non-flammable, it is highly corrosive and may come into contact with certain substances or cause severe reactions. When taking caustic soda solution, the action should be slow to avoid the solution splashing. If it accidentally touches the skin or eyes, rinse with plenty of water immediately and seek medical attention quickly. In short, every step in preparing caustic soda solution is about safety and must not be taken lightly.

What are the storage conditions for reagent hydrofluoric acid?

If you want to store caustic soda solution, you need to pay attention to it. Caustic soda, that is, sodium hydroxide, is highly corrosive. When it is stored, it is the first choice for heavy containers. Is it appropriate to use glass stoppers for glass bottles? No. Caustic soda can react with silica in glass to form sodium silicate, which is sticky. For a long time, the glass stopper will be bonded to the bottle mouth, causing the bottle stopper to be difficult to open. Therefore, it is appropriate to use a glass bottle with a rubber stopper. The rubber is not corroded by caustic soda, which can keep the bottle mouth open and close freely.

Furthermore, it is necessary to avoid moisture. Caustic soda is very deliquescent. If it is placed in a humid place, it is easy to absorb water and dissolve, causing the concentration to change, and it may absorb carbon dioxide in the air and gradually change sodium carbonate Therefore, it should be placed in a dry, cool and ventilated place to avoid moisture and contact with too much carbon dioxide.

Also pay attention to the temperature. If the temperature is too high, it may cause the evaporation of the caustic soda solution to accelerate, or affect its stability. If the temperature is too low, although there is no risk of volatilization, it may affect the activity of subsequent use in some reactions. Therefore, it is appropriate to use room temperature, generally between 15 ° C and 35 ° C.

In short, store the caustic soda solution, choose the right container, avoid moisture and control the temperature, in order to keep its properties stable for later use.

What are the concentration specifications of reagent hydrofluoric acid?

To measure the pH of an alkali solution, there are many considerations in its specifications.

The accuracy of the first concentration. The concentration of an alkali solution is related to its chemical properties and reaction efficiency, and the accurate concentration is the basis for various experiments and industrial processes. When formulating, it is necessary to follow strict procedures and use precision measuring tools, such as volumetric bottles, pipettes, etc., to ensure that the ratio of solute to solvent is correct.

The second is the range of pH. The pH of alkali solutions for different purposes has specific requirements. In chemical production, some reactions require alkali solutions in a specific pH range to ensure product quality and reaction efficiency. In laboratory analysis, alkali solutions with pH should also be adapted to meet different testing needs.

Furthermore, the impurity content is also a key specification. If the lye contains too many impurities, or affects its chemical properties, it will interfere with the reaction process. Therefore, it needs to be purified to reduce the impurities to an acceptable level to maintain the purity of the lye.

In addition, stability cannot be ignored. The lye should be kept stable under specific conditions, and it is not easy to volatilize, decompose or react with environmental substances. When storing, choose a suitable container and environment to prevent it from deteriorating.

As advocated in "Tiangong Kaiwu", everything needs to follow the norms in order to achieve the expected effect. When measuring the pH of the lye, abide by the above specifications, and use scientific methods and rigorous states to ensure the quality of the lye. It can play its due role in various fields.

What are the hazards of reagent hydrofluoric acid to the human body?

If you taste cyanofluoric acid, it is very harmful and cannot be ignored.

Cyanofluoric acid is strong and poisonous. If it touches the skin, you may feel a slight pain at first, and soon the pain will be unbearable. The skin will gradually rot, penetrate deep into the muscles and bones, and the injury will be difficult to heal. Even the limbs must be amputated to stop the spread of the poison. Its poison enters the body, damages the internal organs, disrupts the circulation of qi and blood, causes the heart and lungs to decline, and endangers life.

If you inhale its qi by mistake, the poison will invade the lungs, the lobes of the lungs will be damaged, breathing will be difficult, the chest is stuffy and coughing, and the severe person will die of exhaustion of breath. Even if you survive death, you may

And if you eat it by mistake, your stomach will be eroded, your stomach will vomit blood in severe pain, your internal organs will be injured, and your vitality will be almost lost.

The ancients said: "Good medicine is bitter in the mouth, and it is beneficial to the disease. Loyal words are contrary to the ear and are conducive to action." However, cyanofluoric acid is not a good medicine, but a vicious thing, and it must not be tried lightly. The world should stay away from it, and its existence and use must be strictly regulated, in case it is accidentally touched, which will lead to disaster. When working, the protection is comprehensive, so that there is no opportunity for poison. Everyone should also understand its harm and advertise it widely, so that more people will be protected from it.

The harm of cyanofluoric acid is related to life, and it should not be slack a little. Everyone should be careful, to protect their own well-being, and their whole life is safe.