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Linear Formula:


MDL Number:


EC No.:



98% Cesium Formate
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(2N) 99% Cesium Formate
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(3N) 99.9% Cesium Formate
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(4N) 99.99% Cesium Formate
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Cesium Formate Properties (Theoretical)

Compound Formula CHCsO2
Molecular Weight 177.92
Appearance White powder, crystals, or chunks
Melting Point N/A
Boiling Point N/A
Density N/A
Solubility in H2O N/A
Exact Mass 177.903106
Monoisotopic Mass 177.903106

Cesium Formate Health & Safety Information

Signal Word Warning
Hazard Statements H315-H319-H335
Hazard Codes Xi
Risk Codes 36/37/38
Safety Statements 26-36/37/39
RTECS Number N/A
Transport Information N/A
WGK Germany 3

About Cesium Formate

Cesium Formate is a cesium salt produced from pollucite ore or synthesized by the reaction of cesium hydroxide and formic acid. Cesium formate powder and chunks are generally immediately available in most volumes; we also produce high purity cesium formate 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.

Cesium Formate Synonyms

Caesium formate; Formic acid cesium salt, Formic acid caesium salt; cesium formate anhydrous

Chemical Identifiers

Linear Formula HCOOCs
MDL Number MFCD00039103
EC No. 222-492-8
Beilstein/Reaxys No. 3912426
Pubchem CID 23663999
IUPAC Name cesium; formate
InchI Identifier InChI=1S/CH2O2.Cs/c2-1-3;/h1H,(H,2,3);/q;+1/p-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 Elements


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.


May 19, 2022
Los Angeles, CA
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