Cesium Sulfate



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Compound Formula Cs4O4S
Molecular Weight 361.87
Appearance White
Melting Point 272 °C (522 °F)
Boiling Point N/A
Density 4.243 g/cm3
Monoisotopic Mass 361.763
Exact Mass 361.763

Health & Safety Info  |  MSDS / SDS

Signal Word N/A
Hazard Statements N/A
Hazard Codes N/A
Risk Codes N/A
Safety Statements N/A
Transport Information N/A
Globally Harmonized System of Classification and Labelling (GHS) N/A


Cesium Sulfate is a moderately water and acid soluble Cesium source for uses compatible with sulfates.Sulfate compounds are salts or esters of sulfuric acid formed by replacing one or both of the hydrogens with a metal. Most metal sulfate compounds are readily soluble in water for uses such as water treatment, unlike fluorides and oxides which tend to be insoluble. Organometallic forms are soluble in organic solutions and sometimes in both aqueous and organic solutions. Metallic ions can also be dispersed utilizing suspended or coated nanoparticles and deposited utilizing sputtering targets and evaporation materials for uses such as solar cells and fuel cells. Cesium Sulfate is generally immediately available in most volumes. Ultra high purity and high purity compositions improve both optical quality and usefulness as scientific standards. Nanoscale elemental powders and suspensions, as alternative high surface area forms, may be considered. We also produce Cesium Sulfate Solution. 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.


Caesium sulphate, Dicesium sulfate, Sulfuric acid, dicesium salt

Chemical Identifiers

Formula Cs2SO4
CAS 10294-54-9
Pubchem CID 25137
MDL MFCD00010959
EC No. 233-662-6
IUPAC Name dicesium sulfate
Beilstein Registry No. N/A
SMILES [Cs+].[Cs+].[O-]S([O-])(=O)=O
InchI Identifier InChI=1S/2Cs.H2O4S/c;;1-5(2,3)4/h;;(H2,1,2,3,4)/q2*+1;/p-2

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 Cesium products. Cesium (or Caesium) (atomic symbol: Ce, atomic number: 55) is a Block S, Group 1, Period 6 element with an atomic weight of 132.9054519. The number of electrons in each of Cesium's shells is 2, 8, 18, 18, 8, 1 and its electron configuration is [Xe] 6s1. Cesium Bohr ModelThe cesium atom has a radius of 265 pm and a Van der Waals radius of 343 pm. Cesium is a member of the alkali group of metals.It is one of three metals that occur as a liquid at room temperature, the others being mercury and gallium. Elemental CesiumCesium's main commercial source is pollucite ore; however, it is also found in beryl, avogadrite, pezzottaite, and londonite. Cesium was discovered by Robert Bunsen and Gustav Kirchhoff in 1860 and first isolated by Carl Setterberg in 1882. In its elemental form, cesium has a silvery gold appearance. The word Cesium originates from the Latin word "caesius," meaning "sky blue," which refers to the vibrant blue lines in its spectrum.

See more Sulfur products. Sulfur (or Sulphur) (atomic symbol: S, atomic number: 16) is a Block P, Group 16, Period 3 element with an atomic radius of 32.066. Sulfur Bohr ModelThe number of electrons in each of Sulfur's shells is 2, 8, 6 and its electron configuration is [Ne] 3s2 3p4. In its elemental form, sulfur has a light yellow appearance. The sulfur atom has a covalent radius of 105 pm and a Van der Waals radius of 180 pm. In nature, sulfur can be found in hot springs, meteorites, volcanoes, and as galena, gypsum, and epsom salts. Sulfur has been known since ancient times but was not accepted as an element until 1777, when Antoine Lavoisier helped to convince the scientific community that it was an element and not a compound.

Recent Research

Experimental study on cesium immobilization in struvite structures., Wagh, Arun S., Sayenko S Y., Shkuropatenko V A., Tarasov R V., Dykiy M P., Svitlychniy Y O., Virych V D., and Ulybkina Е А. , J Hazard Mater, 2016 Jan 25, Volume 302, p.241-9, (2016)

Evaluation of ambient dose equivalent rates influenced by vertical and horizontal distribution of radioactive cesium in soil in Fukushima Prefecture., Malins, Alex, Kurikami Hiroshi, Nakama Shigeo, Saito Tatsuo, Okumura Masahiko, Machida Masahiko, and Kitamura Akihiro , J Environ Radioact, 2016 Jan, Volume 151 Pt 1, p.38-49, (2016)

Different cesium-137 transfers to forest and stream ecosystems., Sakai, Masaru, Gomi Takashi, Negishi Junjiro N., Iwamoto Aimu, and Okada Kengo , Environ Pollut, 2016 Feb, Volume 209, p.46-52, (2016)

Development of Scintillators in Nuclear Medicine., Khoshakhlagh, Mohammad, Islamian Jalil Pirayesh, Abedi Seyed Mohammad, and Mahmoudian Babak , World J Nucl Med, 2015 Sep-Dec, Volume 14, Issue 3, p.156-9, (2015)

Bismuth Based Hybrid Perovskites A3 Bi2 I9 (A: Methylammonium or Cesium) for Solar Cell Application., Park, Byung-Wook, Philippe Bertrand, Zhang Xiaoliang, Rensmo Håkan, Boschloo Gerrit, and Johansson Erik M. J. , Adv Mater, 2015 Sep 29, (2015)

All-Inorganic Colloidal Perovskite Quantum Dots: A New Class of Lasing Materials with Favorable Characteristics., Wang, Yue, Li Xiaoming, Song Jizhong, Xiao Lian, Zeng Haibo, and Sun Handong , Adv Mater, 2015 Oct 8, (2015)

Quantum Dot Light-Emitting Diodes Based on Inorganic Perovskite Cesium Lead Halides (CsPbX3 )., Song, Jizhong, Li Jianhai, Li Xiaoming, Xu Leimeng, Dong Yuhui, and Zeng Haibo , Adv Mater, 2015 Oct 7, (2015)

Influence of energy pooling and ionization on physical features of a diode-pumped alkali laser., An, Guofei, Wang You, Han Juhong, Cai He, Zhou Jie, Zhang Wei, Xue Liangping, Wang Hongyuan, Gao Ming, and Jiang Zhigang , Opt Express, 2015 Oct 5, Volume 23, Issue 20, p.26414-25, (2015)

Structural and electronic control of the metal to insulator transition and local orderings in the θ-(BEDT-TTF)2X organic conductors., Alemany, Pere, Pouget Jean-Paul, and Canadell Enric , J Phys Condens Matter, 2015 Oct 28, Volume 27, Issue 46, p.465702, (2015)