Potassium Hydroquinonesulfonate is the potassium salt of a hydroquinone derivative that carries a sulfonate group on its aromatic ring. The addition of this sulfonate group transforms hydroquinone, which is relatively poorly soluble in water, into an ionic compound that dissolves very readily in aqueous media. In the laboratory, this material serves as a water-soluble mild reducing agent, as a synthetic intermediate for preparing functionalized aromatic derivatives, and as a test substance in antioxidant research as well as in studies of redox equilibria within quinone-hydroquinone systems.
The characteristic that makes this compound a preferred choice is the combination of the redox behaviour typical of the hydroquinone-quinone couple with excellent water solubility conferred by the sulfonate group in its potassium salt form. Thanks to these properties, researchers can work in purely aqueous systems without needing to add auxiliary organic solvents, which is particularly helpful in electrochemical experiments, metal plating research, and radical scavenging activity testing. Its physical form is a stable solid that is easy to weigh accurately, far more practical to handle than concentrated solutions.
The two phenolic hydroxyl groups located at the para positions also provide reactive sites for etherification and esterification chemistry, which extends the usefulness of this building block in multi-step synthesis. In Indonesian laboratories, this profile suits university research groups, materials and electroplating laboratories, and analytical or formulation development units that require a dependable aqueous-compatible redox reagent supplied as a weighable solid rather than a prepared solution.
- Electrochemical studies: the water-soluble sulfonate salt allows quinone-hydroquinone redox couples to be examined directly in aqueous electrolyte without adding any auxiliary organic co-solvent that could disturb the measurement.
- Antioxidant and radical scavenging research: it acts as a defined test substance whose hydroquinone-type redox behaviour makes it suitable for evaluating reducing capacity and radical quenching in aqueous assay systems.
- Organic synthesis intermediate: the compound functions as a non-heterocyclic building block for preparing functionalized aromatic derivatives, with the para-positioned phenolic hydroxyl groups available for further chemical elaboration.
- Metal plating and surface treatment research: its mild reducing character combined with very high water solubility supports plating bath studies where reagents must remain fully dissolved in purely aqueous formulations.
- Etherification and esterification work: the two phenolic hydroxyl groups provide accessible reaction points, letting researchers build more elaborate aromatic structures through multi-step routes starting from a single weighable solid.
| Brand | TCI |
|---|---|
| CAS number | 21799-87-1 |
| Molecular formula | — |
| Purity | — |
| Category | Chemistry > Building Blocks > Non-Heterocyclic Building Blocks |
| Pack sizes | available in the standard research pack sizes supplied by the manufacturer; please confirm the required size when ordering |
| Physical form | stable solid, easy to weigh accurately |
| Storage | keep in a closed original container, protected from moisture |
- Catalogue number: H0593
Store the container tightly closed in a cool, dry place away from direct sunlight and sources of heat. Because the material is a hygroscopically sensitive salt intended for aqueous work, keeping the original supplier container sealed helps preserve accurate weighing and consistent performance. Use clean, dry spatulas and glass or chemically compatible plastic vessels when transferring the solid, and reseal the container promptly after each use. Handle in a well ventilated area or fume hood, wearing safety goggles, gloves, and a laboratory coat. Avoid generating dust, avoid contact with skin and eyes, and keep the compound separated from strong oxidizing agents given its reducing character. Always consult the manufacturer's safety data sheet before first use.
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