431583

Potassium bicarbonate

≥99.95% trace metals basis, 99.7-100.5% dry basis

• 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: 329756314
• NACRES: NA.55

Properties

• description: for inorganic trace analysis
• Quality Level: 100
• Assay: ≥99.95% trace metals basis; 99.7-100.5% dry basis
• form: solid
• impurities: ≤0.003% S compounds; ≤0.01% insolubles; <500 ppm total metallic impurities (excluding Na)
• solubility: water: soluble 362 g/L at 25 °C
• anion traces: chloride (Cl^-): ≤0.001%; phosphate (PO₄^3-): ≤5 ppm
• cation traces: NH₄⁺: ≤5 ppm; Na: ≤0.03%; heavy metals: ≤5 ppm
• 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 is water soluble alkaline potassium salt with monoclinic crystalline structure. It is a raw material for the synthesis of many potassium compounds.[1] It is a better coolant than sodium bicarbonate in the aerosol fire extinguishing apparatus.[2] It shows potential as an antifungal agent.[3]

Application

Potassium bicarbonate may be used as a catalyst in the synthesis of dimethyl carbonate (DMC) by reacting with propylene oxide (PO), supercritical CO₂ (SC CO₂) and methanol.[4] It may also be used as a nucleophile for synthesizing branched allylic alcohols in the presence of iridium catalyst.[5]

Features and Benefits

Meets A.C.S. reagent specifications.

Safety Information

• Storage Class Code: 11 - Combustible Solids
• WGK: WGK 1
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable