12602

Potassium bicarbonate

puriss., meets analytical specification of Ph. Eur., BP, USP, E501, 99.5-101.0% (acidimetric)

• Synonym(s): Potassium hydrogen carbonate
• Linear Formula: KHCO₃
• CAS Number: 298-14-6
• Molecular Weight: 100.12
• Beilstein: 4535309
• EC Number: 206-059-0
• MDL number: MFCD00011402
• UNSPSC Code: 12352300
• PubChem Substance ID: 329749766
• NACRES: NA.21

Properties

• grade: puriss.
• Quality Level: 200
• Assay: 99.5-101.0% (acidimetric)
• form: powder or crystals
• quality: meets analytical specification of Ph. Eur., BP, USP, E501
• impurities: organic volatile impurities, complies (GC); ≤0.0005% heavy metals (as Pb); ≤0.002% ammonium (NH₄)
• loss: ≤0.1% loss on drying, 4 h (on silica gel)
• pH: 8.0-8.6 (20 °C, 5%)
• solubility: water: soluble(lit.)
• anion traces: carbonate (K₂CO₃): ≤2.5%; chloride (Cl^-): ≤50 mg/kg; sulfate (SO₄^2-): ≤100 mg/kg
• cation traces: As: ≤1 mg/kg; Ca: ≤50 mg/kg; Fe: ≤10 mg/kg; Na: ≤300 mg/kg; Pb: ≤5 mg/kg
• suitability: complies for appearance of solution
• SMILES string: [K+].OC([O-])=O
• InChI: 1S/CH2O3.K/c2-1(3)4;/h(H2,2,3,4);/q;+1/p-1
• InChI key: TYJJADVDDVDEDZ-UHFFFAOYSA-M

Description

General description

Potassium bicarbonate (Potassium hydrogen carbonate) is an inexpensive, nontoxic base. It is used to regulate pH or as a reagent.

Application

Potassium bicarbonate is used:

• In the synthesis of cyclic ammonium cation N,N-dimethyl-3,5-dimethylpiperidinium (DMDMP).
• As a base in the preparation of glycerol carbonate and glycidol from 3-chloro-1,2-propanediol (HAL).

Safety Information

• Storage Class Code: 13 - Non Combustible Solids
• WGK: WGK 1
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable