How much mercury volatilization is harmful to humans?

Mercury is toxic and is commonly known as mercury. But its compounds and salts are very toxic and can cause brain and liver damage when taken orally, inhaled, or after exposure. As a result, most of today's thermometers use alcohol instead of mercury. Some medical thermometers still use mercury because of its high accuracy.

At standard air pressure and temperature, the biggest danger of pure mercury is that it easily oxidizes and produces mercury oxide, which tends to form small particles and increase its surface area.

Although pure mercury is less toxic than its compounds, it is still a dangerous pollutant because it forms organic compounds in living organisms.

The most dangerous mercury organic compound is c

HHG, just a few microliters of contact on ** can be fatal.

Mercury is a poison that can accumulate in living organisms, and it is easily absorbed by ** as well as by the respiratory and digestive tracts. Minamata disease is a type of mercury poisoning. Mercury damages central nervous system tissue, which has adverse effects on the mouth, mucous membranes, and teeth.

Prolonged exposure to high mercury can lead to brain damage and death. Despite the high boiling point of mercury, the saturated mercury vapor at room temperature has reached several times the toxic meter.

Therefore, special care should be taken when handling mercury. Containers containing mercury should be particularly protected from spillage or evaporation, and heating of mercury must be carried out under a well-ventilated and well-filtered hood. In addition, some mercury compounds are automatically reduced to pure mercury, which evaporates and is often overlooked.

Measures to be taken after mercury loss].

Attention must be paid to the use of mercury. As soon as mercury loss is detected, the mercury droplets should be collected or sprinkled with sulfur powder to turn the mercury into non-volatile, less toxic mercury sulfide. Iodine can be used to deal with mercury vapor to produce mercury iodide and remove mercury damage.

Mercury volatilizes into the air. Mercury, also known as mercury, is a liquid silvery-white metal, which can evaporate at room temperature After the thermometer is broken, mercury will form many water droplets when it falls on the ground, and if it is not collected in time, it will quickly volatilize into the air, mercury vapor is very toxic, and can enter the nervous system through the human respiratory tract, making people poisoned.

Preparation method of mercuryIn nature, mercury mostly exists in the nature of compounds, and mercury is copper and sulfur, so most of mercury is distributed in the form of mercury sulfide (cinnabar). In ancient times, people have mastered the method of mercury extraction from cinnabar, that is, calcination in the air, collecting evaporated mercury vapor and condensing the acquired metal mercury.

Mercury is obtained by heating cinnabar in an air stream, and the resulting vapor is condensed to obtain mercury.

Cinnabar is roasted in the air or coheated with quicklime.

The above content reference: Encyclopedia - Mercury.

It takes about 72 hours for mercury to evaporate.

Mercury is a liquid metal, it is volatile in the air, generally speaking, the mercury contained in household thermometers, if dropped on the ground, without treatment, it takes about 72 hours to evaporate. Mercury is the common name of the chemical element mercury, which has the characteristics of low viscosity and easy flow, and is a liquid metal that can evaporate at room temperature.

If mercury falls to the ground and ruptures, the corresponding volatilization time has a great relationship with room temperature and air circulation velocity. The higher the room temperature, the stronger the air flow, the faster the corresponding evaporation, and there is no specific time limit to refer to Youyanding. It is important to note that the patient should be treated promptly.

How to dispose of mercury falling to the ground

If you accidentally break the mercury thermometer in your life, you should open the window for ventilation, which can alleviate the harm caused by the volatilization of mercury in the air to the human body. It is also important to properly dispose of mercury spilled in the living environment, and when handling mercury, you should wear protective gloves. At the same time, you can use some paper towels or some gauze to carefully wrap the mercury.

In addition, the collected mercury should not be poured directly into the sewer, and it is recommended to put the collected mercury in the hazardous garbage ** bin. After the collection is completed, some sulfur powder can be sprinkled on the ground where the mercury is scattered to reduce the toxicity of the mercury that cannot be completely collected on the ground.

Mercury volatiles, and mercury is the only metal in a liquid state at room temperature and pressure. This unique physical property of mercury metal makes it volatile, in a zero air environment, let the mercury evaporate, the concentration can reach milligrams per cubic meter, more than 100 times more than the occupational health standard, and with the increase of indoor temperature, the volatile capacity of mercury will also increase simultaneously.

The special physical properties of metallic mercury make it easy to adsorb, and once indoor pollution is caused, the residual mercury will continue to volatilize into the air and become a continuous source of pollution. Current medical research has confirmed that metal mercury is mainly absorbed through the respiratory tract in the form of volatilization as vapor, and metal mercury and mercury vapor are very little absorbed by **, so the main absorption route of metal mercury poisoning is the respiratory tract, and this absorption is a process that cannot be detected by the naked eye.

Applications: The most common applications for mercury are in the manufacture of industrial chemicals and in electronic or electrical products. Mercury is also used in thermometers, especially in thermometers that measure high temperatures.

Increasingly, gaseous mercury is still used in the manufacture of fluorescent lamps, while many other applications have been phased out due to health and safety concerns and replaced by the less toxic but much more expensive Galinstan alloy. In addition to this, mercury is used in the following ways:

Gold is often used in gold mines because it decomposes gold from its minerals.

It is used to make instruments such as barometers and diffusion pumps.

Gaseous mercury is used in mercury vapor lamps.

Mercury volatilizes at room temperature.

Here's how to do it.

Because mercury is easy to volatilize and be inhaled by the human body posture to cause poisoning, it is necessary to deal with the mercury meter in time and correctly after it is broken.

Mercury thermometer.

Clause. 1. Quickly remove children and pets from the room, and remember not to use vacuum cleaners, brooms, or rags to clean mercury.

Clause. 2. Clean up the mercury while keeping the room ventilated, if the room can adjust the temperature and reduce the room temperature as much as possible, it can reduce the volatilization of mercury and promote condensation. If the mercury falls on the smooth ground such as tiles, you can use cardboard shells, celery sheets, scrapers, etc., from the periphery of the scattered parts close to the ground to scrape to the center, you can see that the mercury balls will gradually gather into large balls, and then gently shovel up the mercury balls and close them into a plastic bag.

If mercury is scattered on rough surfaces such as carpets or on beds, you can tape them and then close them with tape into a plastic bag, which is recommended to be layered in layers to prevent breakage and leakage. Dark areas or very small particles of mercury can be found with a flashlight, as mercury can reflect light.

Scattered mercury.

Thirdly, after the mercury is collected, some sulfur can be sprinkled and buried deep underground.

Eight hours.

Mercury can be volatile at room temperature, and the rate of evaporation of mercury is related to temperature, the higher the temperature, the faster the rate of evaporation of mercury.

After the mercury thermometer is broken, the broken mercury particles should be gathered together in the shirt as soon as possible, collected into a sealed bottle, and the upper part should be covered with water. When collecting, you need to wear hats, masks, gloves, after wearing the mercury collected in a plastic bag, you can use a syringe to suck the mercury scattered, smaller mercury beads, you can use adhesive tape for sticking, you should also use a flashlight to find a few small mercury beads scattered under the bed, after such treatment, the remaining mercury beads will be relatively small, open the window ventilation can accelerate the volatilization of mercury, generally within eight hours of the room can live in people. In addition, in order to avoid mercury poisoning, it is recommended that patients open doors and windows for ventilation in the near future, and also let the people present drink more milk or mung bean soup.

You can also sprinkle some sulfur powder on the broken place to reduce or make noise about the toxicity of mercury, because the combination of sulfur powder and mercury can form a mercury sulfide compound that is difficult to volatilize, preventing mercury from volatilizing into the air and endangering human health.