What is mercury ? What is mercury?

Mercury (mercury, HG), also known as mercury, has the lowest melting point among all kinds of metals, and it is the only metal that is liquid and easy to flow at room temperature, and the texture is like jelly. Specific gravity, specific gravity of vapor. Its chemical symbol ** is Latin and originally means "liquid silver".

It is stable in the air. The vapor is highly toxic. Soluble in nitric acid and hot concentrated sulfuric acid, but with dilute sulfuric acid, hydrochloric acid, alkali has no effect.

It can dissolve many metals. The valency is +1 and +2. A mixture of seven isotopes of mercury.

It has strong sulfur-philic and copper-philic properties, that is, under normal conditions, it is easy to merge with the elementalization of sulfur and copper to form stable compounds, so sulfur elements are usually used in the laboratory to treat the leakage of mercury.

Elemental uses: used in the manufacture of scientific measuring instruments (such as Fortin barometers, thermometers, etc.), drugs, catalysts, mercury vapor lamps, electrodes, thundermercury, etc.

It's mercury......It is a very toxic heavy metal.

The only liquid metal at room temperature and the others have been over.

Mercury is a toxic silvery-white monovalent and divalent heavy metal element, it is the only liquid metal at room temperature, free in nature and in cinnabar, calomel and several other minerals.

Mercury is a common name for mercury, which is a chemical element with a very small distribution and is commonly found in water, air and soil. It is a silvery-white heavy liquid, strictly speaking, it is the only liquid metal that exists at room temperature and pressure. Mercury has a long history of use and is very versatile.

Mercury is insoluble in water, mercury is continuously evaporated in the air, and it will evaporate in water, but the mercury submerged in water will reduce the amount of evaporation, if there is sulfur powder in the home, sprinkle a little on the mercury to neutralize the mercury toxicity, and at the same time, open the window for ventilation in time.

Chemical properties. Soluble in nitric acid and hot concentrated sulfuric acid, mercury nitrate and mercury sulfate are generated, respectively, and mercury salt appears in excess of mercury. It can dissolve many metals and form alloys, which are called amalgam.

The valency is +1 and +2. Similar to silver, mercury can also react with hydrogen sulfide in the air. Mercury has a constant coefficient of bulk expansion, is less metally active than zinc and cadmium, and cannot displace hydrogen from acid solutions.

Generally, mercury compounds have valencies of +1 or +2, with only mercury tetrafluoride being the only mercury compounds at +4 valence, and no mercury compounds at +3 valence.

pharmachologic effect. 1.Mercury (mercury) compounds have disinfectant, laxative, and diuretic effects, and are now unused or rarely used.

Elemental mercury does not cause pharmacological effects, and the dissociated mercury ions can bind to the sparse group and interfere with the metabolism and function of cells. Elemental mercury is not absorbed from the gastrointestinal tract, but its surface can form oxides or sulfides when exposed to air, which can sometimes cause mild diarrhea and diuresis when swallowed. Most people who ingest mercury are asymptomatic, and mercury is excreted in the stool, a small number of people may have certain symptoms, and a very small number (allergic or other unknown causes) can cause immediate death.

2.Mercury is a protoplasmic poison that can bind to the sulfur group in the respiratory enzymes of pathogenic microorganisms and inhibit their vitality, and finally suffocate them to death.

3.Mercury is excreted mainly by the kidneys, followed by the large intestine.

Mercury is a chemically stable, insoluble in acid and insoluble in alkali metal, mercury is a chemical element, element symbol hg, the 80th position of the periodic table, in the periodic table of chemical elements in the 6th period, the iib group, commonly known as mercury, as well as "white water, Yinnu, Shenjiao, Yuanshui, lead essence, flowing beads, yuan beads, red mercury, sand mercury, spiritual liquid, living treasure, Ziming" and other aliases, is the only metal in liquid state at room temperature and pressure.

Mercury can evaporate at room temperature, and mercury vapor and mercury compounds are often highly toxic (chronic). Mercury has been used for a long time and has a wide range of uses. In 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.

Mercury is a gold element, which is directly composed of mercury atoms. Mercury is a chemical element, element symbol Hg, 80th position of the periodic table, in the periodic table of chemical elements in the 6th period, group IIB, commonly known as mercury. Mercury is a silvery-white, shiny, heavy liquid that is chemically stable and insoluble in acids or alkalis.

Introduction to mercuryMercury is a naturally occurring element found in air, water and soil.

Mercury is a highly toxic non-essential element found in a wide range of environmental media and food chains, especially fish, and can be found in all corners of the globe.

The world's mercury ore resources are about 700,000 tons, and the basic reserves are 300,000 tons. The main countries with mercury reserves and their basic reserves are 90,000 tons in Spain, 10,000 tons in Italy, 10,000 tons in China, and 10,000 tons in Kyrgyzstan. The world's mercury deposits are mainly distributed in the Tethys-Himalayan tectonic belt.

The main type of mercury deposits is carbonate type, followed by clastic and magmatic rock types. The carbonate type is the most predominant, accounting for 90% of the reserves of mercury deposits.

Mercury is a chemical element.

Mercury (hydrargyrum) is a chemical element, the element symbol HG, in the periodic table of chemical elements in the 6th period, the IIB group, the 80th, commonly known as mercury, as well as "Bai Lu, Yinnu, Lu, Shen Jiao, Yuan Shui, Lead Essence, Liuzhu, Yuan Zhu, Red Mercury, Sand Mercury, Lingli, Huobao, Ziming" and other aliases, is the only metal that exists in a liquid state at room temperature and pressure.

Mercury is a shiny, silvery-white, heavy liquid that evaporates at room temperature. Metallic mercury is reducible, and the oxidation state is available in two forms: +2 and +1. Mercury is an inert metal that is slow to coalesce with oxygen, but reacts with sulfur when mixed and ground to form non-toxic mercury sulfide HGS, which can be used to treat spilled mercury.

Mercury is insoluble in reducing acids or bases, but it can be soluble in oxidizing acids such as nitric acid and hot concentrated sulfuric acid. Mercury is a highly neurotoxic element, and its elemental and various compounds have varying degrees of toxicity, causing chronic poisoning.

A brief history of discovery:

Mercury is found in very small quantities in nature and is considered a rare metal, but mercury has been discovered for a long time. Natural mercury sulfide, also known as cinnabar, has been used as a red pigment for a long time because of its bright red color. According to the oracle bone inscription unearthed in Yinxu, it can be proved that China used natural mercury sulfide before history.

According to ancient Chinese documents, before the death of Qin Shi Huang, some princes had already used mercury infusion in their tombs, such as Qi Huan's burial in Linzi (now Linzi District, Zibo City, Shandong Province), and his tomb poured mercury into a pool. This means that China had already obtained large quantities of mercury in the 7th century BC or earlier.