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Caesium carbonate or cesium carbonate is a chemical compound with the chemical formula Cs 2 C O 3. It is white crystalline solid . Caesium carbonate has a high solubility in polar solvents such as water , ethanol and DMF .
Caesium bicarbonate or cesium bicarbonate is a chemical compound with the chemical formula CsHCO 3. It can be produced through the following reaction: Cs 2 CO 3 + CO 2 + H 2 O → 2 CsHCO 3. The compound can be used for synthesizing caesium salts, but less common than caesium carbonate.
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Caesium has physical and chemical properties similar to those of rubidium and potassium. It is pyrophoric and reacts with water even at −116 °C (−177 °F). It is the least electronegative stable element, with a value of 0.79 on the Pauling scale. It has only one stable isotope, caesium-133. Caesium is mined mostly from pollucite.
Water-reactive substances [1] are those that spontaneously undergo a chemical reaction with water, often noted as generating flammable gas. [2] Some are highly reducing in nature. [ 3 ] Notable examples include alkali metals , lithium through caesium , and alkaline earth metals , magnesium through barium .
caesium selenate can be obtained from the reaction of caesium carbonate and selenic acid solution: [2] Cs 2 CO 3 + H 2 SeO 4 → Cs 2 SeO 4 + H 2 O + CO 2 ↑. caesium selenate can also be prepared by the neutralization reaction of selenic acid and caesium hydroxide: [1] 2 CsOH + H 2 SeO 4 → Cs 2 SeO 4 + 2 H 2 O
[note 2] Caesium is an alkali metal and has physical and chemical properties similar to those of rubidium and potassium. The metal is extremely reactive and pyrophoric, reacting with water even at−116 °C (−177 °F). It is the least electronegative element having a stable isotope, caesium-133
Caesium carbonate can also be used as the base: Cs 2 CO 3 + HN 3 → CsN 3 + CO 2 + H 2 O. Caesium sulfate reacts with barium azide to form insoluble barium sulfate and caesium azide: Cs 2 SO 4 + Ba(N 3) 2 → 2CsN 3 + BaSO 4 ↓. The thermal decomposition of CsN 3 in vacuo can be used as a method of generating high purity caesium metal: [5] 2 ...