Merkur (von lat. Merx [Ware], Sanskrit बुध budha, m., [klug, verständig, weise]), astronomisches Symbol ☿, ist der sonnennächste und schnellste Planet. Geschichte. Klassische Planeten. Die geschriebenen Symbole für Merkur, Venus, Jupiter und Saturn wurden auf Formen zurückgeführt, die in. Schau dir unsere Auswahl an merkur symbol an, um die tollsten einzigartigen oder spezialgefertigten, handgemachten Stücke aus unseren Shops zu finden.
PLANETENSYMBOLEPlanet, Symbol, Bedeutung, Metall, Tag. Merkur, ☿, Merkurs Flügelhelm und Hermesstab, Quecksilber, Mittwoch. –, –, Drittes Geschlecht. Venus, ♀. Schau dir unsere Auswahl an merkur symbol an, um die tollsten einzigartigen oder spezialgefertigten, handgemachten Stücke aus unseren Shops zu finden. Geschichte. Klassische Planeten. Die geschriebenen Symbole für Merkur, Venus, Jupiter und Saturn wurden auf Formen zurückgeführt, die in.
Symbol Merkur File usage VideoMerkur Magie Online - Magic Mirror DELUXE 2 - 20 Freispiele, Symbol A \u0026 10 auf 1€ Einsatz - Echtgeld
Kumar, M. Belton, and M. McElroy Science Vol. Science , 62— Ksanfomality Advances in Space Research 38 , Earth, Moon, and Planets 12 2 , — Journal of Geophysical Research E11 , — Lunar and Planetary Science 39 , Wagner et al.
Journal of Geophysical Research 83 , — Journal of Geophysical Research E11 , 7. Ice in the Solar System. Physics and Chemistry of the Solar System.
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Schau dir unsere Auswahl an merkur symbol an, um die tollsten einzigartigen oder spezialgefertigten, handgemachten Stücke aus unseren Shops zu finden.
Merkur ist der vernünftige, bewusste Intellekt, der die Ideen nur ordnet, ohne sie zu bewerten. Wie nehme ich Informationen auf und wie gehe ich mit ihnen um?
Aufsteigender Knoten. Die meisten Zwergplaneten und alle Monde , ausgenommen der der Erde, haben keine offiziellen oder inoffiziellen astronomischen Symbole.
Solange die Energien des Merkur nicht auf eine so hohe und reine Weise verwirklicht werden, z. You can help. Summary Description Mercury symbol.
Nederlands: Astronomisch en astrologisch symbool voor de planeet Mercurius. I'll re-upload the original file with a different name.
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Like ZnS, HgS crystallizes in two forms , the reddish cubic form and the black zinc blende form. Mercury II salts form a variety of complex derivatives with ammonia.
Mercury fulminate is a detonator widely used in explosives. Organic mercury compounds are historically important but are of little industrial value in the western world.
Mercury II salts are a rare example of simple metal complexes that react directly with aromatic rings. Organomercury compounds are always divalent and usually two-coordinate and linear geometry.
Unlike organocadmium and organozinc compounds, organomercury compounds do not react with water.
They usually have the formula HgR 2 , which are often volatile, or HgRX, which are often solids, where R is aryl or alkyl and X is usually halide or acetate.
Methylmercury , a generic term for compounds with the formula CH 3 HgX, is a dangerous family of compounds that are often found in polluted water.
Mercury is used primarily for the manufacture of industrial chemicals or for electrical and electronic applications. It is used in some thermometers, especially ones which are used to measure high temperatures.
A still increasing amount is used as gaseous mercury in fluorescent lamps , while most of the other applications are slowly phased out due to health and safety regulations and is in some applications replaced with less toxic but considerably more expensive Galinstan alloy.
Mercury and its compounds have been used in medicine, although they are much less common today than they once were, now that the toxic effects of mercury and its compounds are more widely understood.
The first edition of the Merck's Manual featured many mercuric compounds  such as:. Mercury is an ingredient in dental amalgams.
Thiomersal called Thimerosal in the United States is an organic compound used as a preservative in vaccines , though this use is in decline.
Although it was widely speculated that this mercury-based preservative could cause or trigger autism in children, scientific studies showed no evidence supporting any such link.
Another mercury compound, merbromin Mercurochrome , is a topical antiseptic used for minor cuts and scrapes that is still in use in some countries.
Mercury in the form of one of its common ores, cinnabar, is used in various traditional medicines, especially in traditional Chinese medicine.
Review of its safety has found that cinnabar can lead to significant mercury intoxication when heated, consumed in overdose , or taken long term, and can have adverse effects at therapeutic doses, though effects from therapeutic doses are typically reversible.
Although this form of mercury appears to be less toxic than other forms, its use in traditional Chinese medicine has not yet been justified, as the therapeutic basis for the use of cinnabar is not clear.
Today, the use of mercury in medicine has greatly declined in all respects, especially in developed countries. Thermometers and sphygmomanometers containing mercury were invented in the early 18th and late 19th centuries, respectively.
In the early 21st century, their use is declining and has been banned in some countries, states and medical institutions. In , the U.
Senate passed legislation to phase out the sale of non-prescription mercury thermometers. In , Washington and Maine became the first states to ban mercury blood pressure devices.
The FDA has "inadequate data to establish general recognition of the safety and effectiveness" of the mercury ingredients in these products.
Chlorine is produced from sodium chloride common salt, NaCl using electrolysis to separate the metallic sodium from the chlorine gas. Usually the salt is dissolved in water to produce a brine.
By-products of any such chloralkali process are hydrogen H 2 and sodium hydroxide NaOH , which is commonly called caustic soda or lye.
By far the largest use of mercury   in the late 20th century was in the mercury cell process also called the Castner-Kellner process where metallic sodium is formed as an amalgam at a cathode made from mercury; this sodium is then reacted with water to produce sodium hydroxide.
Some medical thermometers , especially those for high temperatures, are filled with mercury; they are gradually disappearing. In the United States, non-prescription sale of mercury fever thermometers has been banned since Some transit telescopes use a basin of mercury to form a flat and absolutely horizontal mirror, useful in determining an absolute vertical or perpendicular reference.
Concave horizontal parabolic mirrors may be formed by rotating liquid mercury on a disk, the parabolic form of the liquid thus formed reflecting and focusing incident light.
Such liquid-mirror telescopes are cheaper than conventional large mirror telescopes by up to a factor of , but the mirror cannot be tilted and always points straight up.
Liquid mercury is a part of popular secondary reference electrode called the calomel electrode in electrochemistry as an alternative to the standard hydrogen electrode.
The calomel electrode is used to work out the electrode potential of half cells. In polarography both the dropping mercury electrode  and the hanging mercury drop electrode  use elemental mercury.
This use allows a new uncontaminated electrode to be available for each measurement or each new experiment. Mercury-containing compounds are also of use in the field of structural biology.
Mercuric compounds such as mercury II chloride or potassium tetraiodomercurate II can be added to protein crystals in an effort to create heavy atom derivatives that can be used to solve the phase problem in X-ray crystallography via isomorphous replacement or anomalous scattering methods.
Gaseous mercury is used in mercury-vapor lamps and some " neon sign " type advertising signs and fluorescent lamps. Those low-pressure lamps emit very spectrally narrow lines, which are traditionally used in optical spectroscopy for calibration of spectral position.
Commercial calibration lamps are sold for this purpose; reflecting a fluorescent ceiling light into a spectrometer is a common calibration practice.
An argon-filled lamp without mercury will have dull spots and will fail to light correctly. The deep violet glow of a mercury vapor discharge in a germicidal lamp , whose spectrum is rich in invisible ultraviolet radiation.
Skin tanner containing a low-pressure mercury vapor lamp and two infrared lamps, which act both as light source and electrical ballast.
The miniaturized Deep Space Atomic Clock is a linear ion-trap-based mercury ion clock, designed for precise and real-time radio navigation in deep space.
The novel use of mercury allows very compact atomic clocks, with low energy requirements, and is therefore ideal for space probes and Mars missions.
Mercury, as thiomersal , is widely used in the manufacture of mascara. In , Minnesota became the first state in the United States to ban intentionally added mercury in cosmetics, giving it a tougher standard than the federal government.
A study in geometric mean urine mercury concentration identified a previously unrecognized source of exposure skin care products to inorganic mercury among New York City residents.
Population-based biomonitoring also showed that mercury concentration levels are higher in consumers of seafood and fish meals.
Mercury II fulminate is a primary explosive which is mainly used as a primer of a cartridge in firearms. Many historic applications made use of the peculiar physical properties of mercury, especially as a dense liquid and a liquid metal:.
Mercury I chloride also known as calomel or mercurous chloride has been used in traditional medicine as a diuretic , topical disinfectant , and laxative.
Mercury II chloride also known as mercuric chloride or corrosive sublimate was once used to treat syphilis along with other mercury compounds , although it is so toxic that sometimes the symptoms of its toxicity were confused with those of the syphilis it was believed to treat.
Blue mass , a pill or syrup in which mercury is the main ingredient, was prescribed throughout the 19th century for numerous conditions including constipation, depression, child-bearing and toothaches.
The mercury-containing organohalide merbromin sometimes sold as Mercurochrome is still widely used but has been banned in some countries such as the U.
Mercury and most of its compounds are extremely toxic and must be handled with care; in cases of spills involving mercury such as from certain thermometers or fluorescent light bulbs , specific cleaning procedures are used to avoid exposure and contain the spill.
Vacuum cleaners and brooms cause greater dispersal of the mercury and should not be used. Afterwards, fine sulfur , zinc , or some other powder that readily forms an amalgam alloy with mercury at ordinary temperatures is sprinkled over the area before itself being collected and properly disposed of.
Cleaning porous surfaces and clothing is not effective at removing all traces of mercury and it is therefore advised to discard these kinds of items should they be exposed to a mercury spill.
Mercury can be absorbed through the skin and mucous membranes and mercury vapors can be inhaled, so containers of mercury are securely sealed to avoid spills and evaporation.
Heating of mercury, or of compounds of mercury that may decompose when heated, should be carried out with adequate ventilation in order to minimize exposure to mercury vapor.
The most toxic forms of mercury are its organic compounds , such as dimethylmercury and methylmercury. Mercury can cause both chronic and acute poisoning.
Although that can be considered a natural level of exposure, regional or global sources have significant effects. Volcanic eruptions can increase the atmospheric source by 4—6 times.
Natural sources, such as volcanoes , are responsible for approximately half of atmospheric mercury emissions.
The human-generated half can be divided into the following estimated percentages:   . Related Posts. Previous Article Meditation and Symbolic Meanings.
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