13433

Sodium bicarbonate

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

• Synonym(s): Sodium hydrogen carbonate
• Linear Formula: NaHCO₃
• CAS Number: 144-55-8
• Molecular Weight: 84.01
• Beilstein/REAXYS Number: 4153970
• EC Number: 205-633-8
• MDL number: MFCD00003528
• UNSPSC Code: 12352302
• eCl@ss: 38020213
• PubChem Substance ID: 329750171
• NACRES: NA.21

Properties

• grade: puriss.
• assay: 99.0-100.5%
• form: powder
• quality: meets analytical specification of Ph. Eur., BP, USP, FCC, E500
• impurities: ammonia (NH₃), in accordance; organic volatile impurities, complies; residual solvents, complies; water-insoluble matter, complies; ≤0.002% ammonium (NH₄), complies
• loss: ≤0.2% loss on drying (silica gel)
• pH: ≤8.6 (20 °C, 5%)
• pKa (25 °C): (1) 6.37, (2) 10.25 (carbonic acid)
• density: 2.16 g/mL at 25 °C (lit.)
• anion traces: carbonate (CO₃^2-): in accordance; chloride (Cl^-): ≤100 mg/kg; sulfate (SO₄^2-): ≤100 mg/kg
• cation traces: 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
• suitability: complies for appearance of solution
• SMILES string: [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

Description

Application

Sodium bicarbonate may be involved in the fabrication of silica based monolith columns which can be used in capillary electrochromatography. It can also be used to maintain the pH of the column for the separation of proteins via ion exchange displacement chromatography.

Safety Information

• Storage Class: 13 - Non Combustible Solids
• wgk_germany: WGK 1
• flash_point_f: Not applicable
• flash_point_c: Not applicable