Mercury can only be used as a thermometer? The ancestors can play with the mercury out of the flowers

the origins of people and mercury can be traced back to the yuyao Hemdu site in Zhejiang province
6,000
years ago, when people had mastered the process of preparing Zhu sand. Pure zhu sand is mercury sulfide, which is heated to
450
degrees C to
800
degrees C, and mercury sulfide becomes sulfur dioxide vapor and mercury vapor, which is cooled to obtain mercury.。 The ancients thought that Zhu sand and mercury were the same thing, except that there was a difference between "fine old and tender". This is also the reason why ancient alchemy was particularly fond of the use of zhu sand in alchemy. The ancients thought that Zhu sand and mercury could be converted back and forth, just as they had the ability to return to old age and children... Now we know that at that time the alchemists refined, refined out of some heavy metals such as mercury-containing poison pills.
in fact, the amount of zhu sand used in alchemy is not much, tombs are the ancient use of zhu sand and mercury in China's most areas. The ancients used Zhu sand to make "Dan paint" painted on the wall of the tomb, playing a role in impermeability and moisture protection. Experienced tomb thieves, by virtue of the soil layer elements dug out with Luoyang shovels, such as how much Zhu sand, you can accurately determine the location and size of the tomb.。 In addition to Zhu Sand, mercury is also common in the tombs of ancient power men. The ancients would use mercury to simulate the shape of rivers to accompany burials, evaporating mercury vapor can also play the role of anti-corrosion of corpses, anti-worms, tomb anti-theft. The most famous mausoleum to count Qin Shihuang's mausoleum, "History Qin Shihuang's this era" records Qin Shihuang's mausoleum: "to mercury for the hundred rivers and seas, machine indoctrination, with astronomy, under the geography." According to exploration, conservative estimates, Qin Shihuang Mausoleum used at least
22
mercury!。 Ancient in the field of art is also the figure of mercury. Mercury, as the only normal-temperature liquid metal, dissolves gold and silver and evaporates quickly when heated. The ancients used the characteristics of mercury, the gold and silver dissolved into the mercury into a paste-like, applied to the object after heating can evaporate the mercury. In this way, the original dissolved gold and silver will be plated on the object, the wisdom of the ancients can be seen.。 With the development of science, mercury is used more and more widely. In addition to mercury thermometers and blood pressure meters, mercury-containing batteries, fluorescent lamps, industrial catalysts and many other fields are also used.
people's understanding of mercury has deepened, and the environmental problems it brings are increasingly exposed. Mercury pollution can persist in the environment for a long time and accumulate and migrate through ecosystems. Mercury pollution, produced in Asia and Europe, can even spread through the food chain to the Arctic and further threaten local ecosystems and indigenous peoples.
In
2013, China signed the
Minamata Convention on Mercury with
127,
other countries around the world, with the aim of reducing the production and circulation of mercury-containing products and protecting people from mercury and mercury compounds.。 This is
china's

from
January
,
, 2026 to prohibit the production of mercury-containing thermometers and mercury-containing blood pressure meters. Times in the development, although mercury thermometers, blood pressure meters have cheap, accurate, simple maintenance, long life cycle, no charging and a series of advantages, but after all, will bring harm to the environment. Let's gradually bury mercury-containing products in the mass graves of history.。