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號碼: 205-633-8
• MDL號碼: MFCD00003528
• 分類程式碼代碼: 12352302
• eCl@ss: 38020213
• PubChem物質ID: 329750171
• NACRES: NA.21

属性

• 等級: puriss.
• 化驗: 99.0-100.5%
• 形狀: powder
• 品質: meets analytical specification of Ph. Eur., BP, USP, FCC, E500
• 雜質: ammonia (NH₃), in accordance; organic volatile impurities, complies; residual solvents, complies; water-insoluble matter, complies; ≤0.002% ammonium (NH₄), complies
• 損耗: ≤0.2% loss on drying (silica gel)
• pH值: ≤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.)
• 負離子痕跡: carbonate (CO₃^2-): in accordance; chloride (Cl^-): ≤100 mg/kg; sulfate (SO₄^2-): ≤100 mg/kg
• 正離子痕跡: 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
• 適合性: complies for appearance of solution
• SMILES 字串: [Na+].OC([O-])=O
• InChI: 1S/CH2O3.Na/c2-1(3)4;/h(H2,2,3,4);/q;+1/p-1
• InChI 密鑰: UIIMBOGNXHQVGW-UHFFFAOYSA-M

说明

應用

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。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。

安全信息

• 儲存類別代碼: 13 - Non Combustible Solids
• 水污染物質分類（WGK）: WGK 1
• 閃點（°F）: Not applicable
• 閃點（°C）: Not applicable