13433

碳酸氢钠

puriss., meets analytical specification of Ph. Eur., BP, USP, FCC, E500, 99.0-100.5%, powder

• 别名: 碳酸氢钠, 小苏打
• 线性分子式: NaHCO₃
• CAS号: 144-55-8
• 分子量: 84.01
• Beilstein: 4153970
• EC 号: 205-633-8
• MDL编号: MFCD00003528
• UNSPSC代码: 12352302
• eCl@ss: 38020213
• PubChem化学物质编号: 329750171
• NACRES: NA.21

属性

• 等级: puriss.
• 质量水平: 200
• 方案: 99.0-100.5%
• 表单: powder
• 质量: meets analytical specification of Ph. Eur., BP, USP, FCC, E500
• 杂质: ammonia (NH₃), in accordance; organic volatile impurities, complies; residual solvents, complies; water-insoluble matter, complies; ≤0.002% ammonium (NH₄), complies
• 缺失: ≤0.2% loss on drying (silica gel)
• pH值（酸碱度）: ≤8.6 (20 °C, 5%)
• pKa (25 °C): (1) 6.37, (2) 10.25 (carbonic acid)
• 密度: 2.16 g/mL at 25 °C (lit.)
• 痕量阴离子: carbonate (CO₃^2-): in accordance; chloride (Cl^-): ≤100 mg/kg; sulfate (SO₄^2-): ≤100 mg/kg
• 痕量阳离子: Al: ≤0.5 mg/kg; As: ≤2 mg/kg; Ca: ≤100 mg/kg; Fe: ≤10 mg/kg; Hg: ≤1 mg/kg; K: ≤100 mg/kg; Pb: ≤2 mg/kg
• 适用性: complies for appearance of solution
• SMILES字符串: [Na+].OC([O-])=O
• InChI: 1S/CH2O3.Na/c2-1(3)4;/h(H2,2,3,4);/q;+1/p-1
• InChI key: UIIMBOGNXHQVGW-UHFFFAOYSA-M

说明

应用

碳酸氢钠可能参与基于二氧化硅的整体柱的制造，可用于毛细管电色谱。[1]也可用于通过离子交换置换色谱法维持色谱柱的 pH 值，用于蛋白质的分离。[2]

安全信息

• 储存分类代码: 13 - Non Combustible Solids
• WGK: WGK 1
• 闪点(°F): Not applicable
• 闪点(°C): Not applicable