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Chemical structure of Potassium Bicarbonate | 298-14-6
CAS: 298-14-6
SKU: S3195
Potassium Bicarbonate | SKU: S3195
Synonyms: Potassium hydrogen carbonate; Potassium hydrogencarbonate; Potassium acid carbonate; Monopotassium carbonate
Chemical structure of Potassium Bicarbonate | 298-14-6
Potassium Bicarbonate is a mild alkaline salt that Sarchem Labs supplies in bulk as an Extra Pure grade material for pharmaceutical, food-industry, and industrial pH-regulation applications. As a nontoxic base with a well-documented safety profile, it’s a reliable choice wherever a gentle, potassium-based alkalinity source is needed instead of sodium bicarbonate. Every lot ships with a Certificate of Analysis and Safety Data Sheet.
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Specifications

Melting Point292.0°C
pH8.2 (10.01 g/L)
PackagingFibre drum
Linear FormulaKHCO3
Formula Weight100.12
Chemical Name or MaterialPotassium Hydrogen Carbonate
Molecular Weight100.12 g/mol
SMILES String[K+].OC([O-])=O
GradeExtra Pure
Merck Index15, 773
Solubility InformationSolubility in water: 333g/L (20°C). Other solubilities: 600g/L water (60°C),practocally insoluble in alcohol,soluble in potassium carbonate solution
Insoluble Matter≤0.01%
Solubility333 g/L water (20°C); 600 g/L water (60°C); insoluble in alcohol
CAS Number298-14-6
EC Number206-059-0
NACRESNB.24
PubChem Substance ID329752450
UNSPSC Code12352302
MDL NumberMFCD00011402
InChI1S/CH2O3.K/c2-1(3)4;/h(H2,2,3,4);/q;+1/p-1
InChI KeyTYJJADVDDVDEDZ-UHFFFAOYSA-M
Beilstein/REAXYS Number4535309
Quality Level200
Reference GradeACS reagent, 99.7%
ApplicationsPharmaceutical formulation (potassium supplement raw material, buffering agent)

Applications

Pharmaceutical formulation (potassium supplement raw material, buffering agent)
Food-industry pH regulation and leavening applications
Industrial pH adjustment and mild neutralization
Catalyst/dopant in select organic synthesis and polymerization reactions

Product Description

What is Potassium Bicarbonate?

Potassium Bicarbonate is the potassium salt of carbonic acid’s mono-protonated form — closely related to sodium bicarbonate but built around potassium instead of sodium. That distinction matters in applications like sodium-restricted pharmaceutical or food formulations, where a potassium-based alkalinity source is preferred, and in synthesis chemistry, where it’s used as a mild, nontoxic base and drying agent.

Uses of Potassium Bicarbonate

In pharmaceutical formulation, potassium bicarbonate is used as a raw material for potassium supplementation and as a buffering agent. Food manufacturers use it for pH regulation and as a sodium-free alternative to sodium bicarbonate in leavening applications. In synthesis chemistry, it’s been used as a catalyst and drying agent in the production of dimethyl carbonate and propylene glycol from propylene oxide, and as a dopant in vanadium-oxide-catalyzed propene epoxidation research.

Safety Information

*This reference listing carries no GHS hazard pictogram or hazard statement — it is not classified as GHS-hazardous.*

  • Storage Class: 11 – Combustible Solids
  • PPE: Standard laboratory precautions — gloves, dust control if generating fine powder

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FAQs: Potassium Bicarbonate

Mainly as a pharmaceutical potassium-supplement raw material and buffering agent, a sodium-free food pH regulator/leavening agent, and an industrial pH-adjustment and synthesis-chemistry reagent.

No — baking soda is sodium bicarbonate; potassium bicarbonate is the potassium analogue, often chosen when a sodium-free alkalinity source is needed.

No — it's a low-hazard, nontoxic base with no GHS hazard classification; standard good-handling practice is sufficient.

KHCO3, molecular weight 100.12 g/mol.

Yes, for every lot (SKU S3195).