Description

Cesium Carbonate (Cs₂CO₃) is a highly versatile inorganic compound widely utilized in organic synthesis, catalysis, and materials science. With a molecular formula of CCs₂O₃ and CAS number 534-17-8, this white, granular or powdered substance boasts exceptional purity levels (up to 99.995% trace metals basis), making it ideal for precision applications. Its high solubility in polar solvents like water and methanol enhances its reactivity as a strong base or cesium source. Cesium carbonate is particularly valued in cross-coupling reactions (e.g., Suzuki, Heck), esterifications, and as a dopant in optoelectronic materials. Available in multiple grades (ReagentPlus®, Puratronic®, Vetec™), it is packaged under inert conditions to ensure stability. Suitable for researchers requiring low-metal-contamination processes, this compound is a staple in pharmaceuticals, OLED production, and advanced ceramics.

Properties

• CAS Number: 534-17-8
• Complexity: 18.8
• IUPAC Name: dicesium;carbonate
• InChI: InChI=1S/CH2O3.2Cs/c2-1(3)4;;/h(H2,2,3,4);;/q;2*+1/p-2
• InChI Key: FJDQFPXHSGXQBY-UHFFFAOYSA-L
• Exact Mass: 325.7956478
• Molecular Formula: CCs2O3
• Molecular Weight: 325.820
• SMILES: C(=O)([O-])[O-].[Cs+].[Cs+]
• Topological: 63.2
• Monoisotopic Mass: 325.7956478
• Physical Description: Highly deliquescent solid; White odorless powder or granules; Hygroscopic;
• Synonyms: CESIUM CARBONATE, 534-17-8, Caesium carbonate, Dicesium carbonate, Carbonic acid, cesium salt (1:2), Carbonic acid, dicesium salt, Cesium carbonate (Cs2CO3), EINECS 249-784-8, NSC 112218, QQI20A14P4, Carbonic acid cesium salt (1:2), CESIUM CARBONATE [MI], EC 208-591-9, EINECS 208-591-9, NSC-112218, 208-591-9, cesiumcarbonate, dicesium;carbonate, Cs2CO3, MFCD00010957, Cesium carbonate, 99.9% trace metals basis, CCs2O3, Cesium Carbonate(Granules), Carbonic acid, cesium salt, cesiumcabonate, UNII-QQI20A14P4, caesiumcarbonate, cesium cabonate, cesium carbonat, caesium carbonat, cesium-carbonate, cesiurn carbonate, dicaesium carbonate, carbonic acid; cesium, Cesium Carbonate(Powder), SCHEMBL1930, Cesium Carbonate Fine Powder, Cesium carbonate, 200 mesh, Cesium carbonate – 99.9%, Cesium carbonate – 98% min, Cesium carbonate, Puratronic?, DTXSID0052178, Cesium carbonate, p.a., 99.8%, SH-002, AKOS009159424, AKOS016015676, FC15811, Cesium carbonate, ReagentPlus(R), 99%, BP-11402, Cesium carbonate, Cabot high-purity grade, FC163611, SY001250, SY288394, DB-095862, C2160, Cesium carbonate, puriss. p.a., >=99.0%, NS00080169, Cesium carbonate, 99.95% trace metals basis, Cesium carbonate, 99.995% trace metals basis, D77995, Cesium carbonate, purum p.a., >=98.0% (T), Cesium carbonate, Vetec(TM) reagent grade, 99%, A829574, Q416923, Cesium Carbonate HIGH PURITY GRADE, Powder, (-20 Mesh), Carbonic Acid Dicesium Salt; Cesium Carbonate (Cs2CO3); Cesium Carbonate; Dicesium Carbonate;

Cesium carbonate serves as a potent base in organic synthesis, enabling deprotonation and nucleophilic substitution reactions. It catalyzes C-C bond formations in cross-coupling methodologies, critical for pharmaceutical intermediates. In materials science, it acts as a cesium ion source for perovskite solar cells and conductive thin films. Its hygroscopic nature necessitates anhydrous handling for air-sensitive applications.

Safety and Hazards

GHS Hazard Statements

• H318 (100%): Causes serious eye damage [Danger Serious eye damage/eye irritation]
• H361f (100%): Suspected of damaging fertility [Warning Reproductive toxicity]
• H373 (100%): May causes damage to organs through prolonged or repeated exposure [Warning Specific target organ toxicity, repeated exposure]

Precautionary Statements

• P203, P260, P264+P265, P280, P305+P354+P338, P317, P318, P319, P405, and P501

Hazard Classes and Categories

• Skin Irrit. 2 (41.5%)
• Eye Dam. 1 (59%)
• Eye Irrit. 2 (40%)
• STOT SE 3 (41%)
• Repr. 2 (54.5%)
• STOT RE 2 (58.5%)

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Disclaimer: Sold exclusively for laboratory research. Prohibited for commercial use, diagnostics, or human/animal applications. Buyers assume all compliance liability.