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A16625 Potassium carbonate, anhydrous, 99%

CAS Number

Stock No. Size Price ($) Quantity Availability
A16625-36 500g 28.80
A16625-0E 2500g 63.80
A16625-0C 10000g 196.00
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Potassium carbonate, anhydrous, 99%


Chemical Properties

Formula Weight
Melting point
Storage & Sensitivity
Hygroscopic. Ambient temperatures.
Freely soluble in water. Insoluble in acetone, and alcohol.


Potassium carbonate has a wide range of industrial and research applications. The major use of potassium carbonate is the manufacture of chemicals, fertilizers, soap and glass. It is used as a drying agent for solvents especially if there are traces of acids present, and as a scavenger of acids produced in organic synthesis. It is used as a buffering agent during the production of wine. It is also used as a fire suppressant in extinguishers. In organic synthesis, it is an extensively used reagent for the alkylation and arylation reactions on carbon, sulfur, nitrogen, and oxygen centres. It is also used in aldol condensation, Michael reaction, acylation, Wittig reaction, Knoevenagel reaction, elimination reaction, epoxide opening, cyclization, metal-catalyzed cross coupling reaction, hydration, and a wide array of reactions.


Potassium carbonate is a hygroscopic and deliquescent solid.

Literature References

In non-aqueous solvents, acts as an economical, moderately-strong base which is widely used in place of other more expensive and hazardous bases in a variety of alkylation and condensation reactions.

For N-alkylation with alkyl halides, see Dibenzyl­amine, A11554. For alkylation reactions with dialkyl carbonates, see Dimethyl­ carbonate, A13104.

Promotes the Wittig olefination reaction in triglyme: Synth. Commun., 22, 513 (1992), or toluene: Synth. Commun., 22, 1691 (1992).

See also Cesium carbonate, 12887.

Mondal, R.; Mallik, A. K. Recent Applications of Potassium Carbonate in Organic Synthesis. Org. Prep. Proced. Int. 2014, 46 (5), 391-434.

Fraley, S. E.; Hall, M. B.; Nennich, T. D. Effect of Variable Water Intake as Mediated by Dietary Potassium Carbonate Supplementation on Rumen dynamics in Lactating Dairy Cows. J. Dairy. Sci. 2015, 98 (5), 3247-3256.

Zhuang, Q. C.; Li, J.; Tian, L. L. Potassium Carbonate as Film Forming Electrolyte Additive for Lithium-ion Batteries. J. Power Sources 2013, 222, 177-183.

GHS Hazard and Precautionary Statements

Hazard Statements: H315-H319-H335

Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation.

Precautionary Statements: P261-P264b-P271-P280-P302+P352-P304+P340-P305+P351+P338-P312-P332+P313-P337+P313-P362-P501c

Avoid breathing dust/fume/gas/mist/vapours/spray. Wash face, hands and any exposed skin thoroughly after handling Use only outdoors or in a well-ventilated area. Wear protective gloves/protective clothing/eye protection/face protection. IF ON SKIN: Wash with plenty of soap and water. IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Call a POISON CENTER or doctor/physician if you feel unwell. If skin irritation occurs: Get medical advice/attention. If eye irritation persists: Take off contaminated clothing and wash before reuse. Dispose of contents/ container to an approved waste disposal plant

Other References

Harmonized Tariff Code


  • A12646

    Triethylamine, 99%
  • A19890

    Sodium sulfate, anhydrous, 99%
  • 11552

    Sodium carbonate, anhydrous, ACS, 99.5% min
  • 13418

    Lithium carbonate, 99%
  • 33337

    Magnesium sulfate, anhydrous, 99.5% min

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