20959

炭酸セシウム

puriss. p.a., ≥99.0%

• 別名: 炭酸二セシウム
• 化学式: Cs₂CO₃
• CAS番号: 534-17-8
• 分子量: 325.82
• Beilstein: 4546405
• EC Number: 208-591-9
• MDL番号: MFCD00010957
• UNSPSCコード: 12352301
• PubChem Substance ID: 329752061
• NACRES: NA.22
• アッセイ: ≥99.0% (T); ≥99.0%

特性

• グレード: puriss. p.a.
• 品質水準: 100
• アッセイ: ≥99.0% (T); ≥99.0%
• 不純物: ≤0.002% total nitrogen (N)
• mp: 610 °C (dec.) (lit.)
• 微量陰イオン: chloride (Cl^-): ≤20 mg/kg; sulfate (SO₄^2-): ≤50 mg/kg
• 微量陽イオン: Ca: ≤10 mg/kg; Cd: ≤5 mg/kg; Co: ≤5 mg/kg; Cr: ≤5 mg/kg; Cu: ≤5 mg/kg; Fe: ≤5 mg/kg; K: ≤50 mg/kg; Mg: ≤5 mg/kg; Mn: ≤5 mg/kg; Na: ≤50 mg/kg; Ni: ≤5 mg/kg; Pb: ≤5 mg/kg; Zn: ≤5 mg/kg
• SMILES記法: [Cs+].[Cs+].[O-]C([O-])=O
• InChI: 1S/CH2O3.2Cs/c2-1(3)4;;/h(H2,2,3,4);;/q;2*+1/p-2
• InChI Key: FJDQFPXHSGXQBY-UHFFFAOYSA-L

詳細

詳細

Cesium carbonate is an inorganic base generally used in C, N, O-arylation and alkylation reactions. It is also used in six-membered annulation, cross-coupling, intramolecular and intermolecular cyclizations, aza-Henry reaction, Horner-Emmons cyclization, and cycloaddition reactions.

アプリケーション

Cesium carbonate, an alkali metal carbonate, is a commonly used inorganic base in organic reactions.
Synthetic applications:

• As a catalyst to synthesize quinazoline-2,4(1H,3H)-diones from substituted 2-aminobenzonitriles and carbon dioxide.
• As a base to synthesize cyclic carbonates using halo- or tosyl-alcohols and carbon dioxide in the absence of any transition metal or organo catalyst.
• In combination with alkyl halide and acetonitrile, it forms an effective system for the alkylation method of phenols.

カルボン酸アルキル混合物を生成するためのアルコ-ルの効率的なO-アルキル化を促進します。

安全性情報

• ピクトグラム: GHS08,GHS05
• シグナルワード: Danger
• 危険有害性情報: H318,H361f,H373
• 注意書き: P202 - P260 - P280 - P305 + P351 + P338 - P308 + P313 - P405
• 危険有害性の分類: Eye Dam. 1 - Repr. 2 - STOT RE 2 Oral
• ターゲットの組織: Kidney,Adrenal gland,Testes
• 保管分類コード: 13 - Non Combustible Solids
• WGK: WGK 2
• 引火点(°F): Not applicable
• 引火点(℃): Not applicable
• 個人用保護具 (PPE): dust mask type N95 (US), Eyeshields, Gloves