Rubidium Chromate



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Product Code Available Product Forms Request A Quote
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


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


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

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 & 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." For more information on rubidium, including properties, safety data, research, and American Elements' catalog of rubidium products, visit the Rubidium element page.