Rubidium Chromate


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RB-CRAT-02 (2N) 99% Rubidium Chromate Request
RB-CRAT-03 (3N) 99.9% Rubidium Chromate Request
RB-CRAT-04 (4N) 99.99% Rubidium Chromate Request
RB-CRAT-05 (5N) 99.999% Rubidium Chromate Request


Chromate IonRubidium Chromate is generally immediately available in most volumes. 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.


chromic acid, dirubidium salt; Rubidium chromate yellow xtl; dioxido(dioxo)chromium; rubidium(1+)

Chemical Identifiers

Formula Rb2CrO4
CAS 13446-72-5
Pubchem CID 61605
MDL MFCD00016295
EC No. 236-601-1
IUPAC Name dioxido(dioxo)chromium; rubidium(1+)
Beilstein Registry No. N/A
SMILES [Rb+].[Rb+].[O-][Cr]([O-])(=O)=O
InchI Identifier InChI=1S/Cr.4O.2Rb/q;;;2*-1;2*+1


Compound Formula CrO4Rb2
Molecular Weight 286.93
Appearance Yellow to Yellow-Green Powder or Crystals
Melting Point N/A
Boiling Point N/A
Density 3.518 g/cm3
Exact Mass 285.743749
Monoisotopic Mass 285.743749

Health & Safety Info  |  MSDS / SDS

Signal Word Danger
Hazard Statements H272-H317-H350i-H410
Hazard Codes O,T,N
Risk Codes 49-8-43-50/53
Safety Statements 53-45-60-61
RTECS Number N/A
Transport Information UN 1479 5.1/PG 2
WGK Germany 3
Globally Harmonized System of Classification and Labelling (GHS) N/A

Packaging Specifications

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.

Related Products

CrSee more Chromium products. Chromium (atomic symbol: Cr, atomic number: 24) is a Block D, Group 6, Period 4 element with an atomic weight of 51.9961. The 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. Chromium 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.

RbSee more Rubidium products. Rubidium (atomic symbol: Rb, atomic number: 37) is a Block S, Group 1, Period 5 element with an atomic weight of 5.4678. The number of electrons in each of Rubidium's shells is [2, 8, 18, 8, 1] and its electron configuration is [Kr] 5s1. The rubidium atom has a radius of 248 pm and a Van der Waals radius of 303 pm. Rubidium Bohr ModelRubidium is highly reactive, with properties similar to other Group 1 akali metals, e.g., rapid oxidation in air. In its elemental form, rubidium has a gray white appearance. Rubidium is found in the minerals lepidolite, leucite, pollucite, carnallite, and zinnwaldite as well as some potassium minerals. Rubidium was discovered by Robert Bunsen and Gustav Kirchhoff in 1861 and was first isolated by George de Hevesy. The name Rubidium, originates from the Latin word rubidus, meaning "dark or deepest red." For more information on rubidium, including properties, safety data, research, and American Elements' catalog of rubidium products, visit the Rubidium element page.


Recent Research & Development for Rubidium

  • Interferometric Laser Cooling of Atomic Rubidium. Dunning A, Gregory R, Bateman J, Himsworth M, Freegarde T. Phys Rev Lett. 12/1/2015
  • Enrichment of cesium and rubidium in weathered micaceous materials at the Savannah River Site, South Carolina. Zaunbrecher LK, Elliott WC, Wampler JM, Perdrial N, Kaplan DI. Environ Sci Technol. 12/1/2015
  • In vivo impact of intra-aortic balloon counterpulsation on reducing ischemia and improving myocardial blood flow: Proof from a PET rubidium-82 study. Wiggins NB, Sperry BW, Bumgarner JM, Hill EA, Jaber WA. J Nucl Cardiol. 10/18/2015
  • The kinetics and mechanism of nanoconfined molten salt reactions: trimerization of potassium and rubidium dicyanamide. Yancey B, Vyazovkin S. Phys Chem Chem Phys. 9/30/2015
  • Optimizations of spin-exchange relaxation-free magnetometer based on potassium and rubidium hybrid optical pumping. Fang J, Wang T, Zhang H, Li Y, Zou S. Rev Sci Instrum. 9/30/2015
  • Atomic filter based on stimulated Raman transition at the rubidium D1 line. Zhao X, Sun X, Zhu M, Wang X, Ye C, Zhou X. Opt Express. 9/30/2015
  • Observation of large group index enhancement in Doppler-broadened rubidium vapor. Wang BX, Liu CY, Han DJ. Opt Express. 9/24/2015
  • Efimov Resonance and Three-Body Parameter in a Lithium-Rubidium Mixture. Maier RA, Eisele M, Tiemann E, Zimmermann C. Phys Rev Lett. 9/23/2015
  • The structures of the isomorphous potassium and rubidium salts of 4-nitrobenzoic acid and an overview of the metal complex stereochemistries of the alkali metal salt series with this ligand. Smith G. Acta Crystallogr C Struct Chem. 9/20/2015
  • Elevated level of nitric oxide mediates the anti-depressant effect of rubidium chloride in mice. Kordjazy N, Haj-Mirzaian A, Amiri S, Ostadhadi S, Kordjazy M, Sharifzadeh M, Dehpour AR. Eur J Pharmacol. 9/16/2015

Recent Research & Development for Chromium

  • [Confirmation of an excess of cancer mortality in a cohort of workers of a chromium thin-layer plating]. Girardi P, Bressan V, Mabilia T, Merler E. Epidemiol Prev. 10/3/2015
  • Bismuth and chromium co-doped strontium titanates and their photocatalytic properties under visible light irradiation. Lv M, Xie Y, Wang Y, Sun X, Wu F, Chen H, Wang S, Shen C, Chen Z, Ni S, Liu G, Xu X. Phys Chem Chem Phys. 9/30/2015
  • Novel methods for configuration interaction and orbital optimization for wave functions containing non-orthogonal orbitals with applications to the chromium dimer and trimer. Olsen J. J Chem Phys. 9/28/2015
  • Mechanisms of chromium hexavalent-induced apoptosis in testis rats. Marouani N, Tebourbi O, Hallègue D, Mokni M, Yacoubi MT, Sakly M, Benkhalifa M, Rhouma KB. Toxicol Ind Health. 9/25/2015
  • Adsorption characteristics of bio-adsorbent on chromium(III) in industrial wastewater. Lu Z, Wang H, Li J, Yuan L, Zhu L. Water Sci Technol. 9/25/2015
  • A Dietary Supplement Containing Cinnamon, Chromium and Carnosine Decreases Fasting Plasma Glucose and Increases Lean Mass in Overweight or Obese Pre-Diabetic Subjects: A Randomized, Placebo-Controlled Trial. Liu Y, Cotillard A, Vatier C, Bastard JP, Fellahi S, Stévant M, Allatif O, Langlois C, Bieuvelet S, Brochot A, Guilbot A, Clément K, Rizkalla SW. PLoS One. 9/21/2015
  • Toxic and genotoxic effects of hexavalent chromium in environment and its bioremediation strategies. Mishra S, Bharagava RN. J Environ Sci Health C Environ Carcinog Ecotoxicol Rev. 9/1/2015
  • Crystal structure of cis-aqua-chlorido-(rac-5,5,7,12,12,14-hexa-methyl-1,4,8,11-tetra-aza-cyclo-tetra-decane-?(4) N)chromium(III) tetra-chlorido-zincate trihydrate from synchrotron data. Moon D, Choi JH. Acta Crystallogr E Crystallogr Commun. 8/7/2015
  • Chromium, zinc and magnesium status in type 1 diabetes. Lin CC, Huang YL. Curr Opin Clin Nutr Metab Care. 7/20/2015
  • A MALDI-TOF MS analysis study of the binding of 4-(N,N-dimethylamino)pyridine to amine-bis(phenolate) chromium(iii) chloride complexes: mechanistic insight into differences in catalytic activity for CO2/epoxide copolymerization. Kozak CM, Woods AM, Bottaro CS, Devaine-Pressing K, Ni K. Faraday Discuss. 7/13/2015

Recent Research & Development for Chromates

  • Assessing chromate reduction by dissimilatory iron reducing bacteria using mathematical modeling. Peng L, Liu Y, Gao SH, Dai X, Ni BJ. Chemosphere. 2-83-2012
  • Simultaneous speciation analysis of chromate, molybdate, tungstate and vanadate in welding fume alkaline extracts by HPLC-ICP-MS. Š?an?ar J, Berlinger B, Thomassen Y, Mila?i? R. Talanta. 10/18/2015
  • Chronic Exposure to Particulate Chromate Induces Premature Centrosome Separation and Centriole Disengagement in Human Lung Cells. Martino J, Holmes AL, Xie H, Wise SS, Wise JP Sr. Toxicol Sci. 9/29/2015
  • Correction to Using chromate to investigate the impact of natural organics on the surface reactivity of nanoparticulate magnetite. Swindle A, Cozzarelli I, Madden AE. Environ Sci Technol. 9/28/2015
  • Using chromate to investigate the impact of natural organics on the surface reactivity of nanoparticulate magnetite. Swindle AL, Cozzarelli IM, Elwood Madden AS. Environ Sci Technol. 9/21/2015
  • Chromate and phosphate inhibited each other's uptake and translocation in arsenic hyperaccumulator Pteris vittata L. de Oliveira LM, Lessl JT, Gress J, Tisarum R, Guilherme LR, Ma LQ. Environ Pollut. 9/21/2015
  • Chromate Reductase YieF from Escherichia coli Enhances Hexavalent Chromium Resistance of Human HepG2 Cells. Liu X, Wu G, Zhang Y, Wu D, Li X, Liu P. Int J Mol Sci. 9/11/2015
  • Evaluation of bacterial biosensors to determine chromate bioavailability and to assess ecotoxicity of soils. Coelho C, Branco R, Natal-da-Luz T, Sousa JP, Morais PV. Chemosphere. 9/9/2015
  • Nanoporous sorbent material as an oral phosphate binder and for aqueous phosphate, chromate, and arsenate removal. Sangvanich T, Ngamcherdtrakul W, Lee R, Morry J, Castro D, Fryxell GE, Yantasee W. J Nanomed Nanotechnol. 8/24/2015
  • Chromate induces adventitious root formation via auxin signalling and SOLITARY-ROOT/IAA14 gene function in Arabidopsis thaliana. López-Bucio J, Ortiz-Castro R, Ruíz-Herrera LF, Juárez CV, Hernández-Madrigal F, Carreón-Abud Y, Martínez-Trujillo M. Biometals. 8/21/2015

Free Test Sample Program

We recognize many of our customers are purchasing small quantities directly online as trial samples in anticipation of placing a larger future order or multiple orders as a raw material for production. Since our primary business is the production of industrial quantities and/or highly consistent batches which can be used for commercial production and purchased repeatedly in smaller quantity, American Elements offers trial samples at no charge on the following basis. Within 6 months of purchasing materials directly online from us, you have the option to refer back to that order and advise that it is the intention of your company, institution or lab to either purchase a larger quantity, purchase the material in regular intervals or purchase more on some other basis.

We will then evaluate your future needs and assuming the quantity or number of future purchases qualify, we will fully credit your purchase price with the next order. Because of the many variables in the quantity and number of orders you may place, it is impossible to evaluate whether your future order(s) will qualify for this program prior to your placing your next order. Please know American Elements strongly desires to make this free sample program available to you and will make every effort to do so once your next order is placed.