Mercury(I) oxide

Last updated
Mercury(I) oxide
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.036.289 OOjs UI icon edit-ltr-progressive.svg
EC Number
  • 239-934-0
PubChem CID
UNII
UN number 1641
  • InChI=1S/2Hg.O Yes check.svgY
    Key: RPZHFKHTXCZXQV-UHFFFAOYSA-N Yes check.svgY [1]
  • O([Hg])[Hg]
  • [O-2].[Hg+].[Hg+]
Properties
Hg2O
Molar mass 417.183 g·mol−1
AppearanceVery dark, orange, opaque crystals
Odor Odourless
Density 9.8 g mL−1
−76.3·10−6 cm3/mol
Hazards
Occupational safety and health (OHS/OSH):
Main hazards
highly toxic
GHS labelling: [2]
GHS-pictogram-exclam.svg GHS-pictogram-silhouette.svg
Danger
H315, H317, H320, H335, H341, H361, H370, H372
P201, P202, P260, P261, P264, P270, P271, P272, P280, P281, P302+P352, P304+P340, P305+P351+P338, P307+P311, P308+P313, P312, P314, P321, P332+P313, P333+P313, P337+P313, P362, P363, P403+P233, P405, P501
NFPA 704 (fire diamond)
NFPA 704.svgHealth 4: Very short exposure could cause death or major residual injury. E.g. VX gasFlammability 0: Will not burn. E.g. waterInstability 1: Normally stable, but can become unstable at elevated temperatures and pressures. E.g. calciumSpecial hazards (white): no code
4
0
1
Lethal dose or concentration (LD, LC):
18 mg/kg (oral, rat) [3]
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
X mark.svgN  verify  (what is  Yes check.svgYX mark.svgN ?)

Mercury(I) oxide, also known as mercurous oxide, is an inorganic metal oxide with the chemical formula Hg2O.

It is a brown/black powder, insoluble in water but soluble in nitric acid. With hydrochloric acid, it reacts to form calomel, Hg2Cl2. [4] Mercury(I) oxide is toxic but without taste or smell. It is chemically unstable and converts to mercury(II) oxide and mercury metal.

Related Research Articles

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<span class="mw-page-title-main">Cadmium oxide</span> Inorganic compound with the formula CdO

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<span class="mw-page-title-main">Zinc fluoride</span> Chemical compound

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Terbium(III) iodide (TbI3) is an inorganic chemical compound.

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Mercury(I) sulfate, commonly called mercurous sulphate (UK) or mercurous sulfate (US) is the chemical compound Hg2SO4. Mercury(I) sulfate is a metallic compound that is a white, pale yellow or beige powder. It is a metallic salt of sulfuric acid formed by replacing both hydrogen atoms with mercury(I). It is highly toxic; it could be fatal if inhaled, ingested, or absorbed by skin.

Mercury(I) bromide or mercurous bromide is the chemical compound composed of mercury and bromine with the formula Hg2Br2. It changes color from white to yellow when heated and fluoresces a salmon color when exposed to ultraviolet light. It has applications in acousto-optical devices.

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2
ion, found in mercury(I) (mercurous) compounds. The existence of the metal–metal bond in Hg(I) compounds was established using X-ray studies in 1927 and Raman spectroscopy in 1934 making it one of the earliest, if not the first, metal–metal covalent bonds to be characterised.

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Ferrous citrate, also known as iron(II) citrate or iron(2+) citrate, describes coordination complexes containing citrate anions with Fe2+ formed in aqueous solution. Although a number of complexes are possible (or even likely), only one complex has been crystallized. That complex is the coordination polymer with the formula [Fe(H2O)6]2+{[Fe(C6H5O7)(H2O)]}2.2H2O, where C6H5O73- is HOC(CH2CO2)2(CO2, i.e., the triple conjugate base of citric acid wherein the three carboxylic acid groups are ionized. Ferrous citrates are all paramagnetic, reflecting the weak crystal field of the carboxylate ligands.

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Cadmium tetrafluoroborate is an ionic, chemical compound with the formula Cd(BF4)2. It is a crystalline solid, which is colorless and odorless. Cadmium tetrafluoroborate is most frequently used in the industrial production of high-strength steels, its purpose being to prevent hydrogen absorption, a source of post-production cracking of the metal, in the treated steels. Another application of the chemistry of cadmium tetrafluoroborate is fine tuning of the size of cadmium telluride nanomaterials.

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<span class="mw-page-title-main">Praseodymium(III) iodide</span> Chemical compound

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References

  1. 1 2 Chambers, Michael. "ChemIDplus - 15829-53-5 - RPZHFKHTXCZXQV-UHFFFAOYSA-N - Mercurous oxide - Similar structures search, synonyms, formulas, resource links, and other chemical information". Chem.nlm.nih.gov. Retrieved 2 April 2019.
  2. "Mercury(I) oxide". pubchem.ncbi.nlm.nih.gov. Retrieved 23 December 2021.
  3. "Mercuric oxide MSDS". sciencelab.com. Archived from the original on 2012-10-11.
  4. Perry, Dale L. (2011). Handbook of Inorganic Compounds (2nd ed.). Boca Raton: Taylor & Francis. p. 270. ISBN   978-1-4398-1461-1. OCLC   587104373.