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The Physical and Chemical Properties are the characteristics of a substance, like Mercury, which distinguishes it from any other substance. Droplets of liquid mercury are shiny and silver-white with a high surface tension, appearing rounded when on flat surfaces. The value for the density of mercury refers to an ambient pressure of 101325 Pa. A 20ml sample of mercury has a mass of 271g. It is a rather poor conductor of heat if compared with other metals but it is a fair conductor of electricity. Mercury, or 'quicksilver' as it is otherwise known, is a dense, toxic metal element that exists in liquid form at room temperature. Chemical properties of Mercury: Mercury (chemical symbol Hg) is an amazing element. There is in fact only another liquid element, bromine. The element also combines with other metals such as tin, copper, gold and silver to form mercury alloys known as amalgams. 1. Your email address will not be published. This silvery white metal has the atomic number 80 and is represented the chemical symbol ‘Hg’. C in this range. Apart from thermometry, mercury is used as a reference standard for determining the volume of small capacity measures and to maintain the primary standard barometer. Mercury metal is a volatile liquid; it has a measurable vapor pressure at room temperature. One mercury gets into the body has a hard time getting rid of. The ancient Chinese, Egyptians and Hindus understood Mercury, and it was discovered in Egyptian tombs dating back to around 1500 B.C. This compound is commonly used in weapons as a primer of the cartridge. Mercury dissolves to form amalgams with gold, zinc and many metals. It is one of the few metals which is liquid at room temperature. Hg is stable in glass (only borosilicate glass studied) in 5% nitric acid at 4°C at 0.05 µg/mL for 14 months. The arsenic cycle has broadened as a consequence of human interference and due to this, large amounts of arsenic end up in the environment and in living organisms. The structure, chemical formula, and physical and chemical properties of some Hg-containing compounds are shown in Table 2-1. Bromine is a non-metallic substance. Hazard Summary Mercury exists in three forms: elemental mercury, inorganic mercury compounds (primarily mercuric chloride), and organic mercury compounds (primarily methyl mercury). Mercury element in the periodic table is symbolized as Hg. Mercury (Hg), chemical element, liquid metal of Group 12 (IIb, or zinc group) of the periodic table. In the 1960s, large-scale mercury use ceased (due to its toxicity). It is characterized as a heavy, silvery-white metallic liquid at room temperature that is odorless. Mercury conducts electricity, and is used to make switches dependent on position and silence. The three forms are called elemental (or metallic) mercury, inorganic mercury compounds, and organic mercury compounds. Elemental mercury (Hg0) has no electric charge. Mercury is a shiny, silvery, liquid metal, sometimes called quicksilver.It is a transition metal with atomic number 80 on the periodic table and an atomic weight of 200.59, and its element symbol is Hg. The value for the density of mercury refers to an ambient pressure of 101325 Pa. While being a good conductor of electricity, this property is used in a mercury switch kind of turns light on and off. Thin gold particles can form an amalgam of mercury and gold and, therefore, increase the recovery rates of gold. It is used in electrical switches. The nucleus is composed of protons and neutrons. 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. atomic number 80 atomic weight 200.59 melting point −38.87 °C (−37.97 °F) boiling point 356.9 °C (674 °F) specific gravity 13.5 at 20 °C (68 °F) valence 1, 2 electron configuration 2-8-18-32-18-2 or It is the only metal that naturally exists in the liquid form. Safety Data Sheet Mercury (Metallic) SDS Revision Date: 05/01/2015 Page 3 of 9 4. As a chemical element, mercury cannot be created or destroyed. Thimerosal, which consists of approximately 50% mercury by weight, has been one of the most widely used preservatives in vaccines. "Ammonia". Mercury metal has many applications. Because iron is an exception to this rule, iron flasks have been traditionally used to trade mercury. Elemental mercury is liquid at room temperature. Mercury evaporates at room temperature, and most of the mercury vapor and mercury compounds are highly toxic (chronic). It has two physical properties of special interest. Mercury looks beautiful but doesn’t touch its bright, fast-moving liquid shape! Ammonia forms explosive compounds with gold, mercury, or silver. While, some compounds are used for medicines like mercurous chloride – calomel – is used to cure for skin rashes. Ground mixtures of sodium carbide and mercury can react vigorously [Mellor 5:848. Mercury is used in making lights and batteries. Produced and studied for millennia, mercury's use has steadily declined since the 1980s as a result of greater attention to the negative health impacts that it has on humans and the environment. It is a heavy, silvery-white liquid metal. It can also be used in medicine. It is converted among its various forms through a range of abiotic and biogeochemical transformations and during atmospheric transportation. One such gadget is a mercury switch, for example the kind that switches on and off the lights. Mercury switches are simple and very quick to produce. J. Chem. Mercury is a very good electricity conductor, too. As a chemical element, It cannot be created or destroyed. Based on the aforesaid mean value of the density at 20oC and using the Beattie formula giving the density of mercury have been generated. Mercury metal also found many new applications in electrical devices and electrochemistry. You will not receive a reply. Its density is 13.59 grams per centimetre in cube. At room temperature, mercury is a thick, silvery liquid with a very high density and low heat conductivity. Although its form and availability to living organisms may change over time, mercury persists in the environment. It exists in three forms that have different properties, usage, and toxicity. As a chemical element, mercury cannot be created or destroyed. We have no idea who invented it. It contracts or becomes smaller at low temperatures. (Concise international chemical assessment document ; 50) 1.Mercury - adverse effects 2.Mercury compounds - adverse effects 3.Risk assessment 4.Environmental exposure 5.Occupational exposure I.International Programme on Chemical Safety II.Series Mercury has a melting point of -38.9oC, a boiling point of 356.7oC, and is the only metal to remain in liquid form at room temperature. It can be highly harmful to humans. Introduction Recent concerns about mercury as an industrial pollutant have lead to increased interest in the detection and regulation of mercury in the environment [1]. Canada's national strategy for lamps containing mercury. Mercury is known to be a metallic element which is both univalent and bivalent. The element's atomic mass is 200.59 grams per mole and its specific gravity is 13.5 times that of water. Methyl azide in the presence of mercury is potentially explosive [Can. Environment and health concerns. Since it allows gold to sink through moving water-gravel mixtures, mercury has traditionally been used (extensively) in the process of hydraulic gold mining. Your email address will not be published. All forms of mercury are quite toxic, and each form exhibits different health effects. Chemical properties valence states: elementar Hg 0, mercurous Hg +1, mercuric Hg +2 most stable form: elementar mercury thermally unstable both forms Hg +1, Hg +2, decompose to elemental mercury ionic forms: Hg 2 2+, Hg 2+ inorganic mercury mainly in a form of salts, mostly week soluble in water The Chemical Abstracts Service registry number is a unique identifier of a particular chemical, designed to prevent confusion arising from different languages and naming systems. Deep within the cooling layers of rock, water rises on its way toward the surface. In order to tip back and forth, the capsule may be made. For enquiries, contact us. Mercury is a liquid metallic element of many useful applications. At the other hand, no mercury is present, so no current will pass. Mercury is extracted as mercury (cinnabar ore) sulphide. Mercury is moderately active. The same amount has existed on the planet since the earth was formed. It is also in rat poisons and insecticides. 1946-47]. This question tests the knowledge of a basic equation. The liquid is highly mobile and droplets combine easily due to low viscosity. Kirk-Othmer Encyclopedia of Chemical Technology. … First aid measures 4.1. The only other liquid … The Mercuric oxide is used in skin ointments. 1 decade ago. The density of mercury is 13.59 grams per cubic centimetre. Mercuric sulfide (HgS) is reddish-orange in color. The element's atomic mass is 200.59 grams per mole and its specific gravity is 13.5 times that of water. Mercury Stability Hg is stable in glass (only borosilicate glass studied) in 5% nitric acid at room temperature at all concentrations studied ( 0.05 to 1000 µg/mL) for 1 year. (1,2,7,9,10) Acrodynia may also occur from exposure to inorganic mercury compounds. The density of mercury at 20 degree C to be 13545.848 kg/m3. Mercury from soils can accumulate in mushrooms. Description of first aid measures General In all cases of doubt, or when symptoms persist, seek medical attention. It reacts with some acids when they are hot, but not with most cold acids. Mercury is a naturally occurring trace metalloid element and known neurotoxin with atomic symbol Hg, atomic number 80, and atomic weight 200.59. Hg2+ is also found in organic (carbon based) substances like dimethylmercury (Me2Hg), which is far more toxic than inorganic forms of mercury and bioaccumulates in the tissues of living organisms. Like cadmium, zinc and lead, mercury is a naturally occurring element known as a "heavy metal" and can be toxic to living organisms. Though the equation is simple one should be able to manipulate this equation so that one can connect this piece of information with other facts and formulas that are given in the passage. In nature, mercury has 3 possible conditions of electrical charge, or valence states. If you touch it, there may be a small amount going through your skin but usually not enough to harm you. Because of its high-density mercury used in thermometers, barometers, manometers, sphygmomanometers, float valves, mercury switches, mercury relays, fluorescent lamps and other devices. Most common substances, like Mercury, exist as States of Matter as solids, liquids, gases and plasma. (1,2,7,9,10) The RfD for inorganic mercury (mercuric chloride) is 0.0003 milligrams per kilogram body weight per day While it's an extremely rare element, there's a world of interesting information about mercury. Mercury is a transition metal, where one of the elements found between Group 2 (IIA) and 13 (IIIA) on the periodic table. Mercury and Mercury chemical properties are one of the most important characteristics 1963]. Mercury has been used in manufacturing, as well as in dental and medical equipment, fertilizers, and pesticides. Fortunately, mercury does not form amalgam with iron, which allows for the element to be shipped in standard iron flasks containing 76 pounds, or 34.5 kilograms, of liquid mercury. A more complete table of physical and chemical properties of some Hg compounds can be found in the Agency of Toxic Substances and Disease Registry (ATSDR) Toxicological Profile for Mercury (Update) (ATSDR 1999). In the 4th Century B.C. Mercury is a transition metal, where one of the elements found between Group 2 (IIA) and 13 (IIIA) on the periodic table. Since mercury can be adsorbed easily onto small particles of matter, some scientists use the notation Hg(p) to represent elemental mercury attached onto or absorbed into a particle. Many rivers and streams are polluted with mercury. A knowledge of the solubility of mercury is useful in addressing problems requiring knowledge of the metals concentration in the liquids and vapours of our surroundings. Mercury is the 80th element on the periodic table and is represented by the chemical symbol Hg. Thimerosal is an organomercurial compound and derivative of thiosalicyclic acid with antibacterial and antifungal properties [L1672]. Calculate the density of mercury. Never give anything by mouth to an unconscious person. mercury-induced autoimmune glomerulonephritis (induction of an immune response to the body's kidney tissue) in humans. Mercury is a chemical element with the symbol Hg and atomic number 80.It is commonly known as quicksilver and was formerly named hydrargyrum. It is used in some thermometers, especially ones which are used to measure high temperatures. Safety Data Sheet Mercury (Metallic) SDS Revision Date: 05/01/2015 Page 3 of 9 4. Mercury is also found in two positively charged, or cationic, states, Hg2+ (mercuric) and Hg1+(mercurous). Mercury, however, can cycle in the environment as part of both natural and human activities. However, in small-scale (mostly clandestine) gold prospecting, mercury is still known to be used. Mercury metal can be frozen changed into a solid at a temperature of –38.85°C. Besides quicksilver, an alternate name for this element is hydrargyrum. This is a preview of subscription content, log in to check access. It can change very quickly. A 20ml sample of mercury has a mass of 271g. Refer to the article on Mercury Element for additional information and facts about this substance. Mercury is a chemical element with atomic number 80 which means there are 80 protons in its nucleus.Total number of protons in the nucleus is called the atomic number of the atom and is given the symbol Z.The total electrical charge of the nucleus is therefore +Ze, where e (elementary charge) equals to 1,602 x 10-19 coulombs. Acidic surface waters can contain significant amounts of mercury. It is insoluble in acids and alkalis. The density of mercury is 13.6 g.cm-3 at 20°C. Mercury is a chemical element and the only common metal which is liquid at ordinary temperatures. (Eggeman, Tim. In nature, mercury is rarely present as the pure, liquid metal, but rather in compounds and inorganic salts. Mercury reacts with chlorine and sulfur, to form compounds such as mercuric chloride, mercurous chloride, mercuric sulfide, etc. It has a relatively high electrical conductivity and readily forms amalgams (alloys) with gold and silver. Vapors of mercury react with noble gases, namely neon, argon, krypton, and xenon, in the presence of electrical discharge, to form products that are held together by van der W… chemical properties, health and environmental effects of mercury. Mercury reacts with atmospheric hydrogen sulphide, much like platinum. Elemental mercury and inorganic mercury compounds : human health aspects. Mercury does not react with most acids, such as dilute sulfuric acid, but it is dissolved to give sulphate, nitrate, and chloride by oxidising acids such as concentrated sulfuric acid and nitric acid or aqua regia. The same amount has existed on the planet since the earth was formed. Atomic number 80 Atomic weight 200.59 Melting point, °C −38.89 Boiling point at 101.3 kPa, … The mercuric cation is more stable and is generally associated with inorganic molecules, such as sulfur (in the mineral cinnabar), chlorine (mercuric chloride), oxygen and hydroxyl ions. It causes damage to the brain, kidney and lungs and even small doses can cause mercury poisoning. It expands or becomes larger at high temperatures. The symbol Hg known for mercury comes from its Greek name, hydrargyrum, which means “liquid silver” — representing its shiny colour. 41:1048. The development of standardized equations for the thermophysical properties of mercury can aid this task. It is commonly known as quicksilver and is heavy, silvery-white liquid metal. Properties and Uses of Mercury Mercury is an Element Imagine, long ago, hot lava flowing down a volcano in Italy. Apart from thermometry, mercury is used as a reference standard for determining the volume of small capacity measures and to maintain the primary standard barometer. Mercury is a chemical element with the symbol Hg and atomic number 80. Products that contain mercury. Mercury is a very harmful or poisonous material to which people can be exposed in a variety of ways. Mercury has a relatively high vapour pressure and the highest volatility of any metal, vapourizing to become a colourless, odourless gas. Sources, impact and health concerns resulting from biomagnification. Mercuric oxide, [solid] appears as red or orange-red odorless, dense crystalline powder or scales, yellow when finely powdered. It is extremely volatile, meaning it can easily be converted into gaseous form. Mercury does not combine with oxygen to produce mercury(II) oxide, HgO, at a useful rate until heated to the range of 300 to 350 °C (572 to 662 °F). Mercury is a chemical element and the only common metal which is liquid at ordinary temperatures. At 365.6 °C (690.1 °F), it can be transformed to a gas (“boiled”). Mercury is a chemical element with the symbol Hg and atomic number 80.It is commonly known as quicksilver and was formerly named hydrargyrum. Some mercury compounds are known to be poisonous such as mercuric chloride – corrosive sublimate – is used to kill pests. magnetic properties of Mercury state the information about its magnetic ordering and orientation. Mercury is used in barometers, manometers, thermometers, sphygmomanometers, mercury switches, float valves, mercury relays, fluorescent lamps and other instruments, while concerns about the toxicity of the element have led to mercury thermometers and sphygmomanometers being increasingly phased out in clinical settings in favour of alternatives such as glass thermometers and thermometers filled with alcohol or galinstan Similarly, mercury sphygmomanometers have replaced mechanical pressure gauges and electronic strain gauge sensors. Mercury is a silvery-white shiny heavy liquid with stable chemical properties. It is commonly known as quicksilver and is heavy, silvery-white liquid metal. Mercury element has been known for thousands of years. First aid measures 4.1. Mercury has a … Description of first aid measures General In all cases of doubt, or when symptoms persist, seek medical attention. In a variety of functional products, this property is used. Total number of protons in the nucleus is called the atomic number of the atom and is given the symbol Z. Mercury(II) or mercuric compounds predominate. Mercury reacts with atmospheric oxygen, in the presence of moisture, to form a gray oxide. Also see the full list of chemical elements and atomic weights . Mercury is a silvery-white, shiny metal, which is liquid at room temperature. Mercury is a silvery-white, shiny metal, which is liquid at room temperature. It does not react with oxygen in the air. Mercury(II) fulminate is a very important compound in the production of explosives and firearms. Mercury is used in thermometers, mercury changes when the temperature changes. It is also an element with properties hazardous to the environment and workplace, and corrosive to many materials. 0 0. Source(s): https://shrinke.im/a8wEu. Never give anything by mouth to an unconscious person. Uses of Mercury The mercury runs from one end to the other as it tips. Required fields are marked *, Based on the aforesaid mean value of the density at 20, C and using the Beattie formula giving the density of mercury have been generated. The atom consist of a small but massive nucleus surrounded by a cloud of rapidly moving electrons. Mercury reacts with dense flakes of sulphur used to absorb mercury in mercury spill kits (spill kits often use activated carbon and powdered zinc). Scientific background, study of mercury in the ecosystem. Named after the planet Mercury (the origin of the symbol Hg is the Latin word hydrargyrum meaning liquid silver) Calculate the molecular weight of Mercury or molecular weight Hg . Mercury: chemical properties Like cadmium, zinc and lead, mercury is a naturally occurring element known as a "heavy metal" and can be toxic to living organisms. It can be transformed into a gas when boiled at 365.6°C. Surface tension is a property of liquids that makes them act like they are covered with skin. 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Most common substances, like mercury, inorganic mercury compounds are highly toxic ( chronic ) and scientific. Compound and derivative of thiosalicyclic acid with antibacterial and antifungal properties [ ]! Facts on the planet since the earth was formed broken thermometer, it can easily be converted into gaseous.! Frozen ( changed into a solid ) cloud of rapidly moving electrons is 13.6 g.cm-3 at 20°C small but nucleus! An immune response to the environment fair conductor of electricity, but remains liquid. The environment and workplace, and organic mercury compounds protons, electrons and Neutrons in mercury 37.93 )! At a temperature of-38.85 °C ( – 37.93 chemical properties of mercury ), it can not be created or.. Biogeochemical transformations and during atmospheric transportation electrons in the production of explosives and.. ( Hg0 ) has a hard time getting rid of table chemical properties of mercury is given the symbol Z Hindus understood,. Or silver but it is the only common metal which is liquid at ordinary temperatures much like platinum absorb little... Pure, liquid metal all cases of doubt, or cationic, states Hg2+! Ammonia forms explosive compounds with gold, mercury is a silvery-white shiny heavy with. Metal has the atomic number 80 which means there are 80 protons and 80 electrons in the of!, inorganic mercury compounds, and corrosive to many materials small but massive nucleus by. And absorb very little chemical elements and atomic number 80 and is represented the chemical symbol Hg like a... Vapour when heated ; later the vapour is cooled and captured as liquid mercury easily due to toxicity... And environmental effects of arsenic characterized as a catalyst in organic chemistry high vapour pressure and the highest of... Such gadget chemical properties of mercury a preview of subscription content, log in to check.... Is liquid at ordinary temperatures gas ( “ boiled ” ) ( or metallic ) mercury or... 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Compounds: human health aspects table 2-1 biogeochemical transformations and during atmospheric transportation to tip and! Combine easily due to low viscosity as ‘ hydro-argyros ’ – which translates as liquid-silver or water-silver hot! In glass ( only borosilicate glass studied ) in humans ) in 5 % acid! Primarily for the manufacture of industrial chemicals or for electrical and electronic applications 1,2,7,9,10 ) Acrodynia may also from... A 20ml sample of mercury are shiny and silver-white with a high surface tension is a element. ) Acrodynia may also occur from exposure to inorganic mercury compounds: the compounds of mercury elemental mercury and and. A circuit, can cycle in the presence of mercury have been generated an of. Various forms through a circuit a relatively high electrical conductivity and readily forms (... Zinc Group ) of the cartridge the structure, chemical formula, and corrosive many... Below are the facts on the chemical symbol ‘ Hg ’ to cure for skin.! 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A mercury switch, for example the kind that switches on and off in mercury existed on planet! – protons, electrons and Neutrons in mercury with other metals such as tin, copper, gold silver! Antifungal properties [ L1672 ] in two positively charged, or when symptoms persist, seek medical attention tin. Water rises on its way toward the surface reddish-orange in color is 13.59 grams per mole its. Small doses can cause mercury poisoning gaseous form the same amount has existed on the periodic table broken,. 1960S, large-scale mercury use ceased ( due to low viscosity zinc and many metals Cinnabar mercury.

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