The most common applications of Mercury reagent are in the manufacture of industrial chemicals and in electronic or electrical products. Mercury is also used in thermometers, especially when measuring high temperatures. More and more gaseous is still used to make fluorescent lamps, while many other applications have been phased out due to health and safety problems, replaced by the less toxic but much more expensive alloy. Other uses of it include:
1. Because of its nature of itself, it can decompose metallic gold from its minerals and extract pure gold more effectively. Therefore, it is often used in gold mines. Therefore, during the gold rush period, the material is widely used.
2. Used for making barometers, diffusion pumps and other instruments. Gaseous is used in vapour lamps.
3. Used to make liquid mirror telescope. A telescope that uses rotation to make the liquid form a paraboloid shape as the main mirror for astronomical observation, but the price is one-third of that of an ordinary telescope. Therefore, it is fully used in the telescope industry because of its higher cost performance. Other uses: switches, pesticides, in the production of chlorine and potassium hydroxide, preservatives, as electrodes, batteries and catalysts in some electrolytic equipment.
4. It can also be used in dentistry. For example, as an amalgam tooth filler. Mercury reagent and its compounds have been used in drugs, but not as often as before because the toxicity of it and its compounds is more widely known. it is an important element in making dental fillings. Thiomersal is an organic preservative used in vaccines, although its use has been banned. Another mercury compound, mercurochrome, is a topical disinfectant used for small incisions and surface wounds; It is still used in some countries. its compounds have the functions of disinfection, diarrhoea and diuresis, and are now not used or rarely used. Elemental mercury does not cause pharmacological effects. Dissociated ions can combine with hydrophobic groups and interfere with cell metabolism and function. The elemental cannot be absorbed from the gastrointestinal tract, but its surface can form oxides or sulfides when exposed to the air, so it can sometimes cause mild diarrhoea and diuresis after swallowing. Most people who swallow are asymptomatic. it is excreted from faeces. A few people may have some symptoms, while very few (sensitive or other unknown causes) can cause immediate death.
5. Previously used in cosmetics: thiomersal is widely used in the manufacture of eyebrow colouring cream. In 2008, Minnesota became the first state in the United States to ban cosmetics.
it is widely distributed in various environmental media and food chains (especially fish), in air, water and soil, and its traces are all over the world. its minerals occur in the lower Cambrian strata, and their occurrence and enrichment are strictly controlled by structure, rock combination and wall rock alteration. The main ore body is layered and quasi layered, and there are also bedding lenticular ore bodies. It has obvious stratabound characteristics. It is a stratabound deposit. It is recognized as the most typical "layered it deposit" in China, which is of great significance to the exploration and research of it at home and abroad. The ore is single, mainly cinnabar. The output is mainly stellate and disseminated, followed by vein and strip. The ore dressing and smelting performance are good.
The world's resources are about 700000 tons and the basic reserves are 300000 tons. The main countries with reserves and their basic reserves include 90000 tons in Spain, 69000 tons in Italy, 81400 tons in China and 45000 tons in Kyrgyzstan. Its deposits in the world are mainly distributed in the Tethys Himalayan structural belt. The main types of Mercury reagent deposits are carbonate type, followed by clastic rock type and magmatic rock type. Among them, carbonate type is the most important, accounting for 90% of the reserves of it deposits.