Potassium Peroxymonosulfate [> ca. 45%(T) as KHSO5] TCI O0310

Chemical Identity

Other names: 2KHSO5.KHSO4.K2SO4
CAS No.: 37222-66-5
PubChem: CID 15793144·SID 87558561
Formula: H3K5O18S4
Molecular weight: 614.8 g/mol

Full identifiers (IUPAC, SMILES, InChIKey)

IUPAC: pentapotassium;hydrogen sulfate;oxido hydrogen sulfate;sulfate
SMILES: OS(=O)(=O)[O-].OS(=O)(=O)O[O-].OS(=O)(=O)O[O-].[O-]S(=O)(=O)[O-].[K+].[K+].[K+].[K+].[K+]
InChIKey: HJKYXKSLRZKNSI-UHFFFAOYSA-I

Rp 769.650,00

~~Rp 537.600,00~~ Rp 769.650,00

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Berat 25g 500g

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Potassium Peroxymonosulfate from TCI (product code O0310) is an inorganic oxidant widely known by the trade name Oxone. It is a potassium triple salt that contains potassium peroxymonosulfate (KHSO5) as the active component, together with potassium hydrogen sulfate and potassium sulfate. As the product name states, the active content is specified as > ca. 45% as KHSO5. In the laboratory it serves as a versatile oxidant for organic synthesis, water treatment work, and studies of advanced oxidation processes.

Researchers choose Oxone because it is a strong oxidant that is still easy to handle. It is a solid that stays relatively stable when kept dry, it dissolves in water, and its by-products are sulfate salts that are relatively benign. For these reasons it is often seen as a more environmentally friendly option than oxidants based on heavy metals such as chromium. It can oxidize sulfides to sulfoxides or sulfones and aldehydes to carboxylic acids. With certain ketones it forms dioxiranes for epoxidation reactions. Peroxymonosulfate can also be activated to produce highly reactive sulfate radicals.

In Indonesia, potassium peroxymonosulfate is widely used in research at university and institutional laboratories. Organic chemistry groups use it as a practical oxidant for synthesis and teaching experiments where they want to avoid toxic heavy-metal reagents. Environmental and chemical engineering laboratories use it in water treatment research and in studies of sulfate-radical-based advanced oxidation processes for breaking down pollutants. Because it is a stable, water-soluble solid, it is easy to keep and use in routine laboratory work.

TCI brochures (PDF)

Oxidizing Agents 2025-06-11 · p. 7
C-H Bond Activation Reaction 2025-06-20 · p. 10
Metallic Salts 2025-11-06 · p. 7

Related TCI products

Oxidation of sulfides: converts sulfides to sulfoxides or sulfones, so researchers get an effective oxidation without relying on chromium or other heavy-metal oxidants.
Oxidation of aldehydes: converts aldehydes to carboxylic acids in a practical way, and the water-soluble sulfate by-products make work-up and disposal easier.
Dioxirane-mediated epoxidation: reacts with certain ketones to generate dioxiranes in situ, which are useful reagents for epoxidizing alkenes in organic synthesis studies.
Advanced oxidation process research: peroxymonosulfate can be activated to produce highly reactive sulfate radicals, which makes it a key reagent in studies of pollutant degradation.
Water treatment studies: its strong oxidizing power, solubility in water, and relatively benign sulfate by-products make it a good fit for laboratory water treatment experiments.

Brand	TCI (product code O0310)
CAS number	37222-66-5
Molecular formula	—
Purity	—
Category	Chemistry > Catalysis and Inorganic Chemistry > Metallic Salts
Pack sizes	see the available options on the product page
Physical form	water-soluble solid that stays relatively stable when kept dry
Storage	—

Active content: > ca. 45%(T) as KHSO5, supplied as a triple salt with potassium hydrogen sulfate and potassium sulfate

Store potassium peroxymonosulfate in a tightly closed original container in a cool, dry, well-ventilated place, away from moisture, because it stays stable only when kept dry. As a strong oxidant, keep it apart from combustible materials, reducing agents, organic substances, and incompatible chemicals. Wear safety glasses, gloves, and a laboratory coat, and avoid creating or breathing dust. Weigh it with clean, dry tools, and close the container right after use. Always read the Safety Data Sheet (SDS) before use, and follow local regulations for disposal.

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