Rubidium Chromate

CAS 13446-72-5
Linear Formula: Rb2CrO4
MDL Number: MFCD00016295
EC No.: 236-601-1

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


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
Monoisotopic Mass 285.743749
Exact 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


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

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

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 Safety Data Sheet (SDS). Solutions are packaged in polypropylene, plastic or glass jars up to palletized 440 gallon liquid totes, and 36,000 lb. tanker trucks.

Related Products & Element Information

See 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. 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.

See 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."

Recent Research

Cavity-enhanced frequency up-conversion in rubidium vapor., Offer, Rachel F., Conway Johnathan W. C., Riis Erling, Franke-Arnold Sonja, and Arnold Aidan S. , Opt Lett, 2016 May 15, Volume 41, Issue 10, p.2177-80, (2016)

Highly reliable optical system for a rubidium space cold atom clock., Ren, Wei, Sun Yanguang, Wang Bin, Xia Wenbing, Qu Qiuzhi, Xiang Jingfeng, Dong Zuoren, Lü Desheng, and Liu Liang , Appl Opt, 2016 May 1, Volume 55, Issue 13, p.3607-14, (2016)

Tunable rubidium excited state Voigt atomic optical filter., Yin, Longfei, Luo Bin, Xiong Junyu, and Guo Hong , Opt Express, 2016 Mar 21, Volume 24, Issue 6, p.6088-93, (2016)

High-pressure phase transitions in rubidium and caesium hydroxides., Hermann, Andreas , Phys Chem Chem Phys, 2016 Jun 28, Volume 18, Issue 24, p.16527-34, (2016)

Adenosine induced coronary vasospasm during Rubidium PET myocardial perfusion scan in a patient with Takayasu's Arteritis., Aslam, Saadia, Khan Muhammad, Venetucci Luigi, and Arumugam Parthiban , J Nucl Cardiol, 2016 Jun 20, (2016)

Perfusion imaging using rubidium-82 ((82)Rb) PET in rats with myocardial infarction: First small animal cardiac (82)Rb-PET., Clemmensen, Andreas Ettrup, Ghotbi Adam Ali, Bodholdt Rasmus Poul, Hag Anne Mette Fisk, Hasbak Philip, Ripa Rasmus Sejersten, and Kjaer Andreas , J Nucl Cardiol, 2016 Jun 14, (2016)

Myocardial perfusion of infarcted and normal myocardium in propofol-anesthetized minipigs using (82)Rubidium PET., Rasmussen, Thomas, Follin Bjarke, Kastrup Jens, Christensen Thomas Emil, Hammelev Karsten Pharao, Kjær Andreas, and Hasbak Philip , J Nucl Cardiol, 2016 Jun, Volume 23, Issue 3, p.599-603, (2016)

Light-Drag Enhancement by a Highly Dispersive Rubidium Vapor., Safari, Akbar, De Leon Israel, Mirhosseini Mohammad, Magaña-Loaiza Omar S., and Boyd Robert W. , Phys Rev Lett, 2016 Jan 8, Volume 116, Issue 1, p.013601, (2016)

Quantitative relationship between coronary artery calcium and myocardial blood flow by hybrid rubidium-82 PET/CT imaging in patients with suspected coronary artery disease., Assante, Roberta, Zampella Emilia, Arumugam Parthiban, Acampa Wanda, Imbriaco Massimo, Tout Deborah, Petretta Mario, Tonge Christine, and Cuocolo Alberto , J Nucl Cardiol, 2016 Jan 15, (2016)

Improvement of vacuum squeezing resonant on the rubidium D1 line at 795 nm., Han, Yashuai, Wen Xin, He Jun, Yang Baodong, Wang Yanhua, and Wang Junmin , Opt Express, 2016 Feb 8, Volume 24, Issue 3, p.2350-9, (2016)

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