Magnesium Chromate

Hydrate: Mg2CrO4• 7H2O
CAS 16569-85-0
Anhydrous: Mg2CrO4
CAS 13423-61-5

Product Product Code Order or Specifications
(2N) 99% Magnesium Chromate MG-CRAT-02 Contact American Elements
(3N) 99.9% Magnesium Chromate MG-CRAT-03 Contact American Elements
(4N) 99.99% Magnesium Chromate MG-CRAT-04 Contact American Elements
(5N) 99.999% Magnesium Chromate MG-CRAT-05 Contact American Elements

Formula CAS No. PubChem SID PubChem CID MDL No. EC No IUPAC Name Beilstein
Re. No.
MgCrO4 13423-61-5 N/A 61599 N/A 236-540-0 magnesium dioxido(dioxo)chromium N/A [Mg+2].[O-][Cr]([O-])(=O)=O InChI=1S/Cr.Mg.

PROPERTIES Compound Formula Mol. Wt. Appearance Density

Exact Mass

Monoisotopic Mass Charge MSDS
CrMgO4 140.30 N/A N/A 139.905212 139.905212 0 Safety Data Sheet

Chromate IonMagnesium Chromate is generally immediately available in most volumes. Hydrate or anhydrous forms may be purchased. High purity, submicron and nanopowder forms may be considered. American Elements produces to many standard grades when applicable, including Mil Spec (military grade); ACS, Reagent and Technical Grade; Food, Agricultural and Pharmaceutical Grade; Optical Grade, USP and EP/BP (European Pharmacopoeia/British Pharmacopoeia) and follows applicable ASTM testing standards. Typical and custom packaging is available. Additional technical, research and safety (MSDS) information is available as is a Reference Calculator for converting relevant units of measurement.

Magnesium Bohr ModelMagnesium (Mg) atomic and molecular weight, atomic number and elemental symbolMagnesium (atomic symbol: Mg, atomic number: 12) is a Block S, Group 2, Period 3 element with an atomic mass of 24.3050. The number of electrons in each of Magnesium's shells is [2, 8, 2] and its electron configuration is [Ne] 3s2. The magnesium atom has a radius of 160 pm and a Van der Waals radius of 173 pm. Magnesium was discovered by Joseph Black in 1775 and first isolated by Sir Humphrey Davy in 1808. Magnesium is the eighth most abundant element in the earth's crust and the fourth most common element in the earth as a whole. Elemental MagnesiumIn its elemental form, magnesium has a shiny grey metallic appearance and is an extremely reactive. It is can be found in minerals such as brucite, carnallite, dolomite, magnesite, olivine and talc. Commercially, magnesium is primarily used in the creation of strong and lightweight aluminum-magnesium alloys, which have numerous advantages in industrial applications. The name "Magnesium" originates from a Greek district in Thessaly called Magnesia. For more information on magnesium, including properties, safety data, research, and American Elements' catalog of magnesium products, visit the Magnesium Information Center.

Chromium (Cr) atomic and molecular weight, atomic number and elemental symbolChromium (atomic symbol: Cr, atomic number: 24) is a Block D, Group 6, Period 4 element with an atomic weight of 51.9961. Chromium Bohr ModelThe number of electrons in each of Chromium's shells is 2, 8, 13, 1 and its electron configuration is [Ar] 3d5 4s1. Chromium was first discovered by Louis Nicolas Vauquelin in 1797. It was first isolated in 1798, also by Louis Nicolas Vauquelin. The chromium atom has a radius of 128 pm and a Van der Waals radius of 189 pm. In its elemental form, chromium has a lustrous steel-gray appearance. Elemental ChromiumChromium is the hardest metal element in the periodic table and the only element that exhibits antiferromagnetic ordering at room temperature, above which it tranforms into a paramagnetic solid. The most common source of chromium is chromite ore (FeCr2O4). Due to its various colorful compounds, Chromium was named after the Greek word 'chroma' meaning color. For more information on chromium, including properties, safety data, research, and American Elements' catalog of chromium products, visit the Chromium Information Center.

Material Safety Data Sheet MSDS
Signal Word N/A
Hazard Statements N/A
Hazard Codes N/A
Risk Codes N/A
Safety Precautions N/A
RTECS Number N/A
Transport Information N/A
WGK Germany N/A
Globally Harmonized System of
Classification and Labelling (GHS)

Chromic acid, magnesium salt (1:1), magnesium dioxido(dioxo)chromium

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Typical bulk packaging includes palletized plastic 5 gallon/25 kg. pails, fiber and steel drums to 1 ton super sacks in full container (FCL) or truck load (T/L) quantities. Research and sample quantities and hygroscopic, oxidizing or other air sensitive materials may be packaged under argon or vacuum. Shipping documentation includes a Certificate of Analysis and Material Safety Data Sheet (MSDS). Solutions are packaged in polypropylene, plastic or glass jars up to palletized 440 gallon liquid totes.

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Recent Research & Development for Magnesium

  • Masoud Harooni, Junjie Ma, Blair Carlson, Radovan Kovacevic, Two-pass laser welding of AZ31B magnesium alloy, Journal of Materials Processing Technology, Volume 216, February 2015
  • Xiaomin Yuan, Shouqiang Huang, Microstructural characterization of MWCNTs/magnesium alloy composites fabricated by powder compact laser sintering, Journal of Alloys and Compounds, Volume 620, 25 January 2015
  • Lei Yang, Xiaorong Zhou, Song-Mao Liang, Rainer Schmid-Fetzer, Zhongyun Fan, Geoff Scamans, Joseph Robson, George Thompson, Effect of traces of silicon on the formation of Fe-rich particles in pure magnesium and the corrosion susceptibility of magnesium, Journal of Alloys and Compounds, Volume 619, 15 January 2015
  • Yahia Ali, Dong Qiu, Bin Jiang, Fusheng Pan, Ming-Xing Zhang, Current research progress in grain refinement of cast magnesium alloys: A review article, Journal of Alloys and Compounds, Volume 619, 15 January 2015
  • A. Rosová, I. Hušek, P. Kováč, E. Dobročka, T. Melišek, Microstructure of MgB2 superconducting wire prepared by internal magnesium diffusion process, Journal of Alloys and Compounds, Volume 619, 15 January 2015
  • Qiao Liu, Zhiqiang Guo, Hongfei Han, Hongbo Tong, Xuehong Wei, Lithium, magnesium, zinc complexes supported by tridentate pincer type pyrrolyl ligands: Synthesis, crystal structures and catalytic activities for the cyclotrimerization of isocyanates, Polyhedron, Volume 85, 8 January 2015
  • S.Q. Zhu, H.G. Yan, X.Z. Liao, S.J. Moody, G. Sha, Y.Z. Wu, S.P. Ringer, Mechanisms for enhanced plasticity in magnesium alloys, Acta Materialia, Volume 82, 1 January 2015
  • P. Carlone, G.S. Palazzo, Characterization of TIG and FSW weldings in cast ZE41A magnesium alloy, Journal of Materials Processing Technology, Volume 215, January 2015
  • Weiqin Tang, Shiyao Huang, Dayong Li, Yinghong Peng, Mechanical anisotropy and deep drawing behaviors of AZ31 magnesium alloy sheets produced by unidirectional and cross rolling, Journal of Materials Processing Technology, Volume 215, January 2015
  • Ju-Sik Kim, Won-Seok Chang, Ryoung-Hee Kim, Dong-Young Kim, Dong-Wook Han, Kyu-Hyoung Lee, Seok-Soo Lee, Seok-Gwang Doo, High-capacity nanostructured manganese dioxide cathode for rechargeable magnesium ion batteries, Journal of Power Sources, Volume 273, 1 January 2015

Recent Research & Development for Chromates

  • Takuhiro Otsuka, Takeshi Akaboshi, Youkoh Kaizu, Anisotropic energy-transfer in encounter complex in aqueous solutions: Ligand congeniality between photo-excited mixed-ligand tris(a,a'-diimine)-ruthenium(II) [Ru(phen)3-n(4dmb)n]2+ and tris(malonato)chromate(III) [Cr(mal)3]3-, Inorganica Chimica Acta, Volume 421, 1 September 2014
  • Cong Ruan, Kui Xie, Liming Yang, Bin Ding, Yucheng Wu, Efficient carbon dioxide electrolysis in a symmetric solid oxide electrolyzer based on nanocatalyst-loaded chromate electrodes, International Journal of Hydrogen Energy, Volume 39, Issue 20, 3 July 2014
  • Sébastien Pommiers, Jérôme Frayret, Alain Castetbon, Martine Potin-Gautier, Alternative conversion coatings to chromate for the protection of magnesium alloys, Corrosion Science, Volume 84, July 2014
  • Sylvia Britto, P. Vishnu Kamath, Synthesis, structure refinement and chromate sorption characteristics of an Al-rich bayerite-based layered double hydroxide, Journal of Solid State Chemistry, Volume 215, July 2014
  • S.M. El-Sheikh, M.A. Rabah, Optical properties of calcium chromate 1D-nanorods synthesized at low temperature from secondary resources, Optical Materials, Available online 30 June 2014
  • R.K. Gupta, B.R.W. Hinton, N. Birbilis, The effect of chromate on the pitting susceptibility of AA7075-T651 studied using potentiostatic transients, Corrosion Science, Volume 82, May 2014
  • Sébastien Pommiers-Belin, Jérôme Frayret, Arnaud Uhart, JeanBernard Ledeuil, Jean-Charles Dupin, Alain Castetbon, Martine Potin-Gautier, Determination of the chemical mechanism of chromate conversion coating on magnesium alloys EV31A, Applied Surface Science, Volume 298, 15 April 2014
  • Joshua Olusegun Okeniyi, Olugbenga Adeshola Omotosho, Oluseyi Olanrewaju Ajayi, Cleophas Akintoye Loto, Effect of potassium-chromate and sodium-nitrite on concrete steel-rebar degradation in sulphate and saline media, Construction and Building Materials, Volume 50, 15 January 2014
  • Shanshan Xu, Dehua Dong, Yan Wang, Winston Doherty, Kui Xie, Yucheng Wu, Perovskite chromates cathode with resolved and anchored nickel nano-particles for direct high-temperature steam electrolysis, Journal of Power Sources, Volume 246, 15 January 2014
  • Selvakumar Sellaiyan, Anthony E. Hughes, Suzanne V. Smith, Akira Uedono, James Sullivan, Stephen Buckman, Leaching properties of chromate-containing epoxy films using radiotracers, PALS and SEM, Progress in Organic Coatings, Volume 77, Issue 1, January 2014