Reagent Hydrofluoric Acid

Medicinal stones are essential for treating diseases and saving people, and are also very important in the medical way. Medicinal stones for prescription have a wide range of uses, and here are the number of common ones. One is the medicinal stone for solving the table. Cover the human body's occasional sense of external evil, indicating that at the beginning of the syndrome, the medicinal stone for solving the table is often used to exorcise evil spirits. Such as ephedra, a good product for the warm solution of the table, which can open the door and dissipate the wind and cold, which can be used for the empirical evidence of the wind and cold table, so that the evil energy can be solved from the skin; another example is mint, which can relieve the wind and heat, and is often used for the wind and heat table to help the human body disperse the evil of wind and heat. Second, the medicinal stone for clearing the heat. The evil of the world's fiery is easy to invade the human body, causing all kinds of heat syndromes. Gypsum, the nature of great cold, can clear away heat and laxative fire, remove boredom and quench thirst, and has a good curative effect on the syndrome of hot topic and thirst; Huanglian, great bitterness and great cold, is especially good at clearing the damp heat in the middle of coke, and can laxative fire and detoxify. It is often used for dysentery, vomiting and other syndromes caused by damp heat in the stomach, and it is also used for the carbuncle and sore poison caused by hot poison. Third, the medicinal stone for replenishing deficiency. People have the deficiency of qi, blood, yin and yang, so they need to replenish the medicinal stone for nourishment. Ginseng, which greatly nourishes vitality, restores the veins and solidifies the removal, is an essential medicine for replenishing qi, and this is the case in critical conditions when the qi is deficient and the veins are slightly exhausted; Ejiao, which nourishes yin and nourishes blood, is a good product for nourishing blood, and is mostly used for blood deficiency and yellowing, dizziness, heart palpitations and other syndromes. It can also nourish yin and moisten dryness, and treat yin deficiency and dry cough. Fourth, a medicinal stone for relieving cough and relieving asthma. Loss of the lungs, every disease that causes cough and asthma. Almond, bitter, warm and moisturizing, can relieve cough and reduce asthma, and is an essential medicine for treating cough and asthma. It can be used in combination with both Xinjiu and cold and heat. Suzi, which reduces qi and reduces phlegm, relieves cough and relieves All of these are common uses of prescription medicinal stones. Doctors need to distinguish diseases and use medicinal stones cautiously, so that the medicinal stones can be used effectively to achieve the purpose of treating diseases and saving people.

If you want to store boric acid, you need to clarify its properties. Boric acid is weakly acidic and more stable. When hiding, choose a dry, cool and well-ventilated place. Because if boric acid encounters moisture, it is easy to absorb moisture and agglomerate, which damages its quality, so a dry place is necessary. A cool place can avoid high temperature to change its properties. Well ventilated, it can prevent the accumulation of harmful gases. For boric acid containers, corrosion-resistant materials, such as bottles and jars made of glass and plastic, should be used. Glass is chemically stable and does not react with boric acid; plastic is lightweight and has certain corrosion resistance. The lid must be tight to prevent moisture and air from invading. In addition, the place where the boric acid is stored should not be placed with the strong alkali. Alkali and boric acid can chemically react, causing boric acid to fail. And keep away from fire and heat sources, because although it is not flammable, there may be unknown changes under high temperatures. Also pay attention, the logo should be clear, and the book "boric acid" and related warnings should be written to prevent accidental touch and misuse. Only by hiding it in this way can the boric acid survive for a long time and remain unchanged.

When using the test drug cyanofluoric acid, you need to pay attention to many safety matters. Cyanofluoric acid is highly corrosive and highly toxic, and it will endanger your life if you don't pay attention. Where you use it, you must ensure good ventilation. It is best to have professional ventilation equipment that can quickly drain the volatile cyanofluoric acid gas and reduce its concentration in the air to prevent the operator from inhaling it. When operating, you must wear professional protective equipment, such as protective clothing, which can resist the erosion of cyanofluoric acid on the body; wear special protective gloves, which must be made of materials that can effectively block cyanofluoric acid and fit the hands for flexible operation; the face should also be protected by a full mask to protect the eyes, nose, mouth and other parts to avoid cyanofluoric acid splashing. When taking cyanofluoric acid, use specific corrosion-resistant appliances, such as polytetrafluoroethylene containers and tools. And the operation process must be careful, handle it with care, and avoid dumping or collision to avoid cyanofluoric acid overflow. In the event of a leak, do not panic, immediately evacuate the surrounding personnel and isolate the scene. Emergency responders need to wear higher-grade protective equipment, neutralize the leaked cyanofluoric acid with alkaline substances such as lime and soda powder, and then rinse with a large amount of water. The treated goods should also be properly disposed of according to regulations. After use, the remaining cyanofluoric acid should be sealed and stored in a specific place. The field needs to be cool, dry and well ventilated, away from fire sources, heat sources and flammable and combustible materials. And set up a special person to manage, and record the entry and exit of the warehouse If you accidentally come into contact with cyanofluoric acid during operation, even in a very small amount, you should immediately rinse with a large amount of flowing water, and then seek medical attention as soon as possible without delay. Only by strictly following these safety measures can the safety of personnel and the environment be maximized when using cyanofluoric acid.

The concentration specifications of hydrochloric acid in the test solution are as follows. In various experimental and industrial uses, the concentration of hydrochloric acid has its own specific rules. One is chemical pure grade hydrochloric acid, the concentration of this grade is usually about 36% - 38%. This concentration of hydrochloric acid is mostly used in general chemical experiments, because its purity and concentration can meet common experimental needs, such as acid-base neutralization research, reaction experiments between certain metals and acids, etc. Furthermore, the analysis of pure grade hydrochloric acid has a more accurate concentration specification, generally around 36% - 38%. However, its purity is extremely high and the impurity content is very small. It is mostly used in analytical chemical experiments that require high experimental accuracy, such as quantitative analysis as a raw material for the preparation of standard solutions, etc., to ensure the accuracy of the experimental results. The concentration specifications of industrial grade hydrochloric acid vary greatly. The concentration of hydrochloric acid used in ordinary industrial production may range from 20% to 30%. This type of hydrochloric acid is mostly used for metal surface treatment, such as the pickling process of steel. The chemical reaction between hydrochloric acid and oxides such as rust removes impurities on the metal surface to facilitate subsequent processing. The concentration of hydrochloric acid required by some specific industrial processes may be set differently according to the process requirements, or higher or lower, to adapt to unique production processes. In short, the concentration specifications of hydrochloric acid in the test solution vary depending on the purpose. From the precise requirements of chemical experiments to the diverse applications of industrial production, there are corresponding concentration standards to meet actual needs.

Taste of hydrochloric acid has all kinds of harm to the human body. Hydrochloric acid is highly corrosive. If it comes into contact with the skin carelessly, it will cause redness, swelling and pain in the skin in the light, rotten flesh in the heavy, damage the texture, and even leave scars, affecting the movement and appearance of the limbs. If it touches the eyes, it is particularly harmful, which can cause damage to the tissues in the eyes, eye pain, tears, blurred vision in the light, and blindness in the severe. Life is plunged into darkness, and movement and daily life are restricted. If you inhale the volatile mist of hydrochloric acid, the respiratory tract will bear the brunt. Airway mucosa is irritated, causing cough, asthma, breathing difficulties and other diseases. Being in this environment for a long time can easily lead to chronic diseases of the respiratory tract, such as bronchitis, emphysema, etc., the function of the lungs gradually declines, breathing becomes more difficult, and daily activities are also restricted. If you take hydrochloric acid by mistake, it will harm the digestive tract. The mouth, throat, esophagus and stomach are all corroded, causing severe pain, and even causing serious consequences such as perforation and bleeding, which endanger life. Gastrointestinal dysfunction, digestion and absorption are hindered, nutrition is difficult to continue, and the body decays. In short, hydrochloric acid is seriously harmful to human skin, eyes, respiratory tract, and digestive tract. Daily contact must be cautious, follow norms, and take good protection to prevent unexpected disasters.