Product Overview

tri-Potassium Citrate Monohydrate 99% AR (CAS No. 6100-05-6) is the hydrated tripotassium salt of citric acid, containing a citrate trianion capable of participating in proton-buffering equilibria and coordinating numerous metal ions through its oxygen-donor groups. These properties make citrate chemically useful for controlling ionic speciation and solution conditions without treating the compound as a simple inert electrolyte. The submitted CAS number specifically supports the monohydrate catalogue identity.

The AR grade is positioned for conventional analytical chemistry and laboratory quality-control procedures in which reagent purity and consistent solution preparation are important. Appropriate roles include buffer preparation, complexation or masking steps, reagent preparation and method verification where potassium citrate is specified.

Typical Applications

• Preparation of citrate buffers for conventional analytical procedures.
• Complexing or masking reagent in metal-ion analysis where citrate chemistry is specified.
• Control of metal-ion speciation during wet-chemical determinations.
• Preparation of analytical reagent solutions and non-certified working solutions.
• Laboratory quality-control and method-verification procedures involving citrate media.
• Acid–base and complex-formation studies in aqueous analytical chemistry.

Common Synonyms

• Tripotassium citrate monohydrate
• Potassium citrate monohydrate
• Potassium citrate tribasic monohydrate
• Citric acid tripotassium salt monohydrate
• Tripotassium 2-hydroxypropane-1,2,3-tricarboxylate monohydrate

Storage Conditions

Keep tightly closed and protected from humid air to limit uncontrolled moisture uptake by the hygroscopic monohydrate. Prevent contamination during repeated analytical use so that reagent composition and solution-preparation consistency are maintained.