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Mercury information, including Technical Data, Safety Data and its high purity properties, research, applications and other useful facts are discussed below. Scientific facts such as the atomic structure, ionization energy, abundance on Earth, conductivity and thermal properties are included.

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Mercury Bohr ModelMercury is a Block D, Group 12, Period 6 element. The number of electrons in each of Mercury's shells is 2, 8, 18, 32, 18, 2 and its electronic configuration is [Xe] 4f14 5d10 6s2. In its elemental form mercury's CAS number is 7439-97-6. The mercury atom has a radius of 216.pm and it's Van der Waals radius is 155.pm. Mercury is found both as a native metal and in cinnabar, corderoite, livingstonite ores. Mercury is very toxic. Mercury has been known since ancient times. See Mercury research below.

High Purity (99.999%) Mercury Oxide (HgO) PowderMercury has been known since ancient times. Mercury was named after the planet "Mercury".



Frenchmercure German Quecksilber Italian mercurio PortugueseMercúrio Spanish mercurio Swedish Kvicksilver


Mercury Abundance. The following table shows the abundance of mercury and each of its naturally occurring isotopes on Earth along with the atomic mass for each isotope.
Isotope Atomic Mass % Abundance on Earth
Hg-196 195.965815 0.15
Hg-198 197.966752 9.97
Hg-199 198.968262 16.87
Hg-200 199.968309 23.10
Hg-201 200.970285 13.18
Hg-202 201.970626 29.86
Hg-204 203.973476 6.87


The following table shows the abundance of Mercury present in the human body and in the universe scaled to parts per billion (ppb) by weight and by atom:
  Typical Human Body Universe
by Weight no data 1 ppb
by Atom no data 0.006 ppb


Mercury Safety Data. The safety data for mercury metal, nanoparticles and its compounds can vary widely depending on the form. For potential hazard information, toxicity, and road, sea and air transportation limitations, such as DOT Hazard Class, DOT Number, EU Number, NFPA Health rating and RTECS Class, please see the specific material or compound referenced in the left margin. Mercury compounds have no biological role.

Ionization Energy. The ionization energy for mercury (the least required energy to release a single electron from the atom in it's ground state in the gas phase) is stated in the following table:
1st Ionization Energy 1007.07 kJ mol-1
2nd Ionization Energy 1809.69 kJ mol-1
3rd Ionization Energy 3299.82 kJ mol-1


Conductivity. As to mercury's electrical and thermal conductivity, the electrical conductivity measured in terms of electrical resistivity @ 20 ºC is 95.8  µOcm and its electronegativities (or its ability to draw electrons relative to other elements) is 1.9. The thermal conductivity of mercury is 8.34 W m-1 K-1.

Thermal Properties of Mercury. The melting point and boiling point for mercury are stated below. The following chart sets forth the heat of fusion, heat of vaporization and heat of atomization.
Heat of Fusion 2.331 kJ mol-1
Heat of Vaporization 59.11 kJ mol-1
Heat of Atomization 64.463 kJ mol-1


Recent Research & Development for Mercury
  • Evolution of IncHI2 plasmids via acquisition of transposons carrying antibiotic resistance determinants. Cain AK, Hall RM. J Antimicrob Chemother. 2012 Feb 14. [Epub ahead of print] PMID: 22334605 [PubMed - as supplied by publisher]

  • Assessment of prenatal mercury exposure in a predominately Caribbean immigrant community in Brooklyn, NY. Geer LA, Persad MD, Palmer CD, Steuerwald AJ, Dalloul M, Abulafia O, Parsons PJ. J Environ Monit. 2012 Feb 14. [Epub ahead of print] PMID: 22334237 [PubMed - as supplied by publisher]

  • Mercury Production and Use in Colonial Andean Silver Production: Emissions and Health Implications. Robins NA, Hagan NA. Environ Health Perspect. 2012 Feb 14. [Epub ahead of print] PMID: 22334094 [PubMed - as supplied by publisher]

  • Rupture Pressure of the Posterior Lamella Obtained During Big-Bubble Deep Anterior Lamellar Keratoplasty. McKee HD, Barua A, Brahma AK, Jhanji V, Carley FM. Cornea. 2012 Feb 13. [Epub ahead of print] PMID: 22333666 [PubMed - as supplied by publisher]

  • [The neurological manifestations of chronic mercury poisoning]. Ding Y, Song R, Li CJ. Zhonghua Nei Ke Za Zhi. 2011 Nov;50(11):950-3. Chinese. PMID: 22333129 [PubMed - in process]

  • J. Heyrovský, Japan, and organic polarography. Zuman P. Chem Rec. 2012 Feb 10;12(1):46-62. doi: 10.1002/tcr.201100042. PMID: 22331770 [PubMed - in process]

  • Elevated mercury exposure and neurochemical alterations in little brown bats (Myotis lucifugus) from a site with historical mercury contamination. Nam DH, Yates D, Ardapple P, Evers DC, Schmerfeld J, Basu N. Ecotoxicology. 2012 Feb 14. [Epub ahead of print] PMID: 22331394 [PubMed - as supplied by publisher]

  • An evaluation of ankle-brachial blood pressure index in adult Nigerians with sickle cell anaemia. Oguanobi NI, Onwubere BJ, Ibegbulam OG, Ike SO, Ejim EC, Agwu O. Cardiovasc J Afr. 2012 Jan-Feb;23(1):37-9. doi: 10.5830/CVJA-2011-013. PMID: 22331250 [PubMed - in process]

  • Mercury methylation and hydrogen sulfide production among unexpected strains isolated from periphyton of two macrophytes of the Amazon. Achá D, Pabón CA, Hintelmann H. FEMS Microbiol Ecol. 2012 Feb 13. doi: 10.1111/j.1574-6941.2012.01333.x. [Epub ahead of print] PMID: 22329687 [PubMed - as supplied by publisher]

  • Decline of Acid Rain Enhances Mercury Concentrations in Fish. Hongve D, Haaland S, Riise G, Blakar I, Norton S. Environ Sci Technol. 2012 Feb 13. [Epub ahead of print] No abstract available. PMID: 22329586 [PubMed - as supplied by publisher]

  • Mercury uptake by biogenic silica modified with L-cysteine. Chaves MR, Valsaraj KT, DeLaune RD, Gambrell RP, Buchler PM. Environ Technol. 2011 Oct;32(13-14):1615-25. PMID: 22329153 [PubMed - in process]

  • FTIR imaging investigation in MIR and in an enlarged MIR-NIR spectral range. Poli T, Chiantore O, Giovagnoli A, Piccirillo A. Anal Bioanal Chem. 2012 Feb 12. [Epub ahead of print] PMID: 22327966 [PubMed - as supplied by publisher]

  • Study on selected trace elements and heavy metals in some popular medicinal plants from Sudan. Ebrahim AM, Eltayeb MH, Khalid H, Mohamed H, Abdalla W, Grill P, Michalke B. J Nat Med. 2012 Feb 12. [Epub ahead of print] PMID: 22327800 [PubMed - as supplied by publisher]

  • The role of qualitative risk assessment in environmental management: A Kazakhstani case study. Kajenthira A, Holmes J, McDonnell R. Sci Total Environ. 2012 Feb 10. [Epub ahead of print] PMID: 22326321 [PubMed - as supplied by publisher]

  • Past and present mercury flux to a West African crater lake (Lake Bosomtwe/Bosumtwi, Ghana). Poste AE, Muir DC, Otu MK, Hall RI, Hecky RE. Sci Total Environ. 2012 Feb 10. [Epub ahead of print] PMID: 22326319 [PubMed - as supplied by publisher]

  • Gas emissions, minerals, and tars associated with three coal fires, Powder River Basin, USA. Engle MA, Radke LF, Heffern EL, O'Keefe JM, Hower JC, Smeltzer CD, Hower JM, Olea RA, Eatwell RJ, Blake DR, Emsbo-Mattingly SD, Stout SA, Queen G, Aggen KL, Kolker A, Prakash A, Henke KR, Stracher GB, Schroeder PA, Román-Colón Y, Ter Schure A. Sci Total Environ. 2012 Feb 10. [Epub ahead of print] PMID: 22326311 [PubMed - as supplied by publisher]

  • Biomass gasification chars for mercury capture from a simulated flue gas of coal combustion. Fuente-Cuesta A, Diaz-Somoano M, Lopez-Anton MA, Cieplik M, Fierro JL, Martínez-Tarazona MR. J Environ Manage. 2012 May 15;98:23-8. Epub 2012 Jan 11. PMID: 22325640 [PubMed - in process]

  • Mercury and other element exposure in tree swallows nesting at low pH and neutral pH lakes in northern Wisconsin USA. Custer TW, Custer CM, Thogmartin WE, Dummer PM, Rossmann R, Kenow KP, Meyer MW. Environ Pollut. 2012 Apr;163:68-76. Epub 2012 Jan 11. PMID: 22325433 [PubMed - in process]

  • Mercury vapor pressure of FGD scrubber suspensions - effects of pH level, gypsum and iron. Schuetze J, Daniel K, Sven W, Koeser H. Environ Sci Technol. 2012 Feb 12. [Epub ahead of print] PMID: 22324514 [PubMed - as supplied by publisher]

  • Mitigation of air pollution and carbon footprint by energy conservation through CFLs: a case study. Wath SB, Majumdar D. J Environ Sci Eng. 2011 Jan;53(1):65-74. PMID: 22324148 [PubMed - in process]
  •  
    Formula Atomic Number Molecular Weight Electronegativity (Pauling) Density Melting Point Boiling Point Vanderwaals radius Ionic radius Energy of first ionization
    Hg 80 200.59(2) g.mol -1 2.00 (liquid) 13.534 g·cm-3 -38.83°C 356.73°C 155 pm - 1007.1 kJ.mol-1

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