POTASSIUM PEROXYMONOSULFATE

Potassium peroxymonosulfate is widely used as an active oxygen source in pool treatment, cleaning products, disinfectants, and oxidation systems.
Potassium peroxymonosulfate supports fast oxidation performance and helps break down organic residues, odor compounds, and other unwanted contaminants.
Because it is a powerful oxidizer, Potassium peroxymonosulfate requires careful handling and separation from heat, moisture, combustible materials, and reducing chemicals.

CAS Number: 70693-62-8
EC Number: 274-778-7
Molecular Formula: KHSO5
Molecular Weight: 152.17 g/mol

Synonyms: 10058-23-8, Monopotassium peroxymonosulfate, Monopotassium peroxymonosulfurate, 040ZB27861, DTXSID1034840, Potassium peroxymonosulfuric acid, RefChem:867970, DTXCID9014840, peroxymonosulfuric acid potassium salt, 233-187-4, Oxone, Peroxymonosulfuric acid, monopotassium salt, potassium peroxomonosulfate, Potassium peroxymonosulfate, potassium;hydroxy sulfate, Potassium hydrogenperoxomonosulphate, Peroxymonosulfuricacid, monopotassium salt, potassium (hydroperoxysulfonyl)oxidanide, Caswell No. 699A, Monopotassium persulfate, SCHEMBL8391156, CARO'S ACID POTASSIUM SALT, UNII-040ZB27861, EINECS 233-187-4, AKOS030228132, EPA Pesticide Chemical Code 063604, Peroxymonosulfuric acid, potassium salt (1:1), Q2627730, F0001-1074

Potassium peroxymonosulfate is an inorganic compound with the formula KHSO5.
Potassium peroxymonosulfate is the mono-potassium salt derived from peroxymonosulfuric acid (Caro's acid).

Potassium peroxymonosulfate is a constituent of the widely used oxidizing agent called Oxone, which is a triple salt with the formula 2KHSO5·KHSO4·K2SO4.
Potassium peroxymonosulfate is a broad-spectrum antibacterial and antiviral agent, primarily used in the product Trifectant, and has demonstrated antifungal efficacy against M. canis and Trichophyton spp. when applied with a minimum contact time of 10 minutes.

Potassium peroxymonosulfate refers to a compound salt of potassium hydrogen persulfate, which is an inorganic acidic oxidant.
Potassium hydrogen persulfate composite salt is a new type of active oxygen disinfectant.

As a fifth generation disinfectant, Potassium peroxymonosulfate has a very strong and effective non chlorine oxidation ability.
Potassium peroxymonosulfate's aqueous solution is acidic, making it very suitable for disinfection of various water bodies.
After dissolution, Potassium peroxymonosulfate produces various highly active small molecule free radicals, reactive oxygen species and other derivatives, and does not form toxic by-products in water, making it highly safe.

Potassium peroxymonosulfate is an inorganic peroxide salt and strong oxidizing agent commonly used for disinfection, oxidation, cleaning, water treatment, and surface treatment applications.
Potassium peroxymonosulfate is often supplied as a triple salt mixture and provides active oxygen for oxidation reactions.
Because of its oxidizing character, Potassium peroxymonosulfate must be handled carefully and stored away from heat, moisture, reducing agents, organic materials, and combustible substances.

Related salts:
Organic-soluble derivatives of peroxymonosulfate include the tetra-n-butylammonium, tetraphenylphosphonium, and benzyltriphenylphosphonium salts: (nBu4N)HSO5, (Ph4P)HSO5, and (BnPh3P)HSO5.
The ammonium and sodium salts of HSO−5 are also known.

Uses of Potassium Peroxymonosulfate:
Potassium peroxymonosulfate an inorganic acidic oxidant.
As a novel active-oxygen-based disinfectant—classified as a fifth-generation disinfectant—it possesses exceptionally potent and effective non-chlorine-based oxidizing capabilities.

Potassium peroxymonosulfate's aqueous solution is acidic, making it highly suitable for the disinfection of various types of water bodies.
Upon dissolution, Potassium peroxymonosulfate generates a variety of highly reactive derivatives, including small-molecule free radicals and active oxygen species; crucially, it does not form toxic byproducts within the water, thereby ensuring an exceptionally high level of safety.

For oral cleaning, swimming pool and hot spring water disinfection, pulp bleaching, Veterinary Disinfection etc.
Potassium Monopersulfate Compound Powder can also serve as an etching agent for printed circuit boards (PCBs), an initiator for the synthesis of organic compounds, and for various other purposes.

Applications of Potassium Peroxymonosulfate:
Pharmaceutical/chemical synthesis is the basic raw material for the preparation of ketone peroxides (Dioxirasnes) series catalysts such as DMD and TFD.
Ketone peroxides, with their mild reaction conditions, efficient oxidation activity, and excellent selectivity, have opened up new pathways for asymmetric reactions and Chemicalbook natural drug synthesis.

In the design of olefin asymmetric reaction catalysts, chiral amines, chiral imine salt polymerization initiators, and polymerization reactions of vinyl acetate, ethyl acrylate, and acrylonitrile can be in-situ oxidized; Polymerization reaction of vinyl monomers; Adhesive, blending agent.
Used for oral cleaning, disinfection of swimming pools and hot spring water bodies, pulp bleaching, etc

Potassium peroxymonosulfate is used in pool and spa shock treatment, water treatment, disinfectant formulations, cleaning products, aquaculture, surface oxidation, textile processing, odor control, and chemical synthesis.
Potassium peroxymonosulfate helps oxidize organic contaminants, reduce odor-causing compounds, and support sanitation processes.
Potassium peroxymonosulfate is also used in industrial formulations where controlled oxidation and active oxygen release are required.

Potassium peroxymonosulfate is the active ingredient in oxone, which is a common disinfectant and whitening agent.
Potassium peroxymonosulfate has also been investigated for use in processes aimed at delignification of wood.

Underlying these uses is the high redox potential, which for Potassium peroxymonosulfate, per se, is +1.81 V.

Structure of Potassium Peroxymonosulfate:
The structure of the monohydrate has been confirmed by X-ray crystallography.
This analysis reveals the expected tetrahedral sulfur center, an O-O bond length of 146 picometers, and an SOOH dihedral angle of 90°.

Synthesis of Potassium Peroxymonosulfate:

Potassium persulfate complex salt (oxone) preparation:

Making the pill core 1:
Dissolve the No.1 plasticizer and sodium carboxymethyl cellulose in water to obtain the mixture A, mix potassium bisulfate and the filler, mix with the mixture A sufficiently, and then dry to obtain the pill core 1;

Synthesis of the inner film coat solution:
Add ethyl cellulose to the organic solvent, heat in a water bath, stir, add No. 2 plasticizer and porosity-inducing agent, and stir until the ethyl cellulose is dissolved, to obtain the inner film coat solution;

Synthesize the outer layer film coat solution:
Add hydroxypropyl methyl cellulose and potassium persulfate into water, carry out water bath heating, and then add No.3 plasticizer, stir until hydroxypropyl methyl cellulose dissolves, and obtain the outer layer film coat solution;

Coating:
The drug-carrying pill core 1 is repeatedly immersed into the inner membrane coating solution, removed, and then repeatedly immersed into the outer membrane coating solution, removed, shaken, filtered, and subjected to vacuum drying treatment until constant weight, to obtain a slow-release potassium persulfate preparation.

Stability and Reactivity of Potassium Peroxymonosulfate:

Chemical stability:
Potassium peroxymonosulfate is stable under recommended dry, cool, and well-ventilated storage conditions.

Reactivity:
Potassium peroxymonosulfate is a strong oxidizing agent and may intensify fire.
Potassium peroxymonosulfate may react with reducing agents, combustible materials, organic substances, powdered metals, strong acids, strong bases, and contaminated materials.

Conditions to avoid:
Avoid heat, flames, sparks, direct sunlight, moisture, humidity, friction, shock, dust formation, and contamination.

Incompatible materials:
Reducing agents, combustible materials, organic substances, powdered metals, strong acids, strong bases, alkalis, halides, peroxides, and easily oxidized materials.

Hazardous decomposition products:
Thermal decomposition may produce oxygen, sulfur oxides, potassium oxides, and irritating or toxic fumes.

Handling and Storage of Potassium Peroxymonosulfate:

Handling:
Handle in accordance with good industrial hygiene and safety practices.
Avoid contact with eyes, skin, and clothing.
Avoid breathing dust and prevent dust formation.

Storage:
Store in a cool, dry, and well-ventilated area.
Keep container tightly closed when not in use.

Storage conditions:
Protect from heat, moisture, direct sunlight, ignition sources, and contamination.
Store away from combustible materials, reducing agents, organic materials, and incompatible chemicals.

Packaging materials:
Keep in original sealed containers or suitable oxidizer-compatible industrial packaging.

Shelf life:
Stable when stored properly under dry, cool, and sealed conditions.

First Aid Measures of Potassium Peroxymonosulfate:

Inhalation:
Move person to fresh air and keep comfortable for breathing.
If coughing, irritation, or breathing difficulty occurs, seek medical attention immediately.

Skin contact:
Remove contaminated clothing.
Wash affected area with plenty of water and soap.
Seek medical attention if irritation, redness, or burning persists.

Eye contact:
Rinse cautiously with clean water for several minutes.
Remove contact lenses if present and easy to do.
Continue rinsing and seek medical attention immediately.

Ingestion:
Rinse mouth with water.
Do not induce vomiting unless instructed by medical personnel.
Seek medical attention immediately.

Most important symptoms:
May cause eye, skin, and respiratory irritation.
Dust may cause coughing, throat irritation, breathing difficulty, and discomfort in sensitive individuals.

Firefighting Measures of Potassium Peroxymonosulfate:

Suitable extinguishing media:
Use large amounts of water spray or flooding quantities of water.
Use extinguishing media suitable for surrounding fire.

Unsuitable extinguishing media:
Do not use dry chemical powder, foam, or carbon dioxide as the main extinguishing method for the oxidizer itself, because cooling and dilution with water are preferred.

Specific hazards:
Potassium peroxymonosulfate is an oxidizer and may intensify fire.
It can release oxygen during decomposition and may support combustion of other materials.

Protective equipment for firefighters:
Firefighters should wear self-contained breathing apparatus and full protective clothing.

Firefighting instructions:
Cool containers exposed to fire with water spray.
Remove containers from fire area if safe to do so.

Avoid inhalation of decomposition gases.
Prevent contaminated firefighting water from entering drains or waterways.

Accidental Release Measures of Potassium Peroxymonosulfate:

Personal precautions:
Avoid contact with eyes, skin, and clothing.
Avoid breathing dust.

Remove ignition sources and keep away from combustible materials.
Use appropriate personal protective equipment.

Environmental precautions:
Prevent material from entering drains, soil, surface water, or waterways.

Methods for containment:
Stop spill if safe to do so.
Keep spilled material dry and avoid contamination with organic, combustible, or reducing materials.

Methods for cleaning up:
Collect carefully by sweeping or vacuuming with dust-control methods.
Do not use combustible absorbents such as sawdust, paper, or cloth.
Place into clean, dry, labeled containers for disposal.

Disposal:
Dispose of collected material according to local, regional, and national regulations for oxidizing substances.

Exposure Controls / Personal Protective of Potassium Peroxymonosulfate:

Engineering controls:
Use adequate ventilation.
Provide local exhaust ventilation where dust may be generated during weighing, transfer, mixing, or processing.

Respiratory protection:
Use suitable dust mask or respirator if dust levels are high, ventilation is insufficient, or exposure limits may be exceeded.

Hand protection:
Wear chemical-resistant protective gloves.

Eye protection:
Wear safety glasses or chemical splash goggles.
Use face protection where dust or splashing may occur.

Skin and body protection:
Wear suitable protective clothing to prevent skin contact.
Use protective workwear, closed shoes, and apron if needed.

Hygiene measures:
Wash hands after handling and before eating, drinking, or smoking.
Remove contaminated clothing and wash before reuse.
Keep away from food, beverages, animal feed, combustible materials, and incompatible chemicals.

Identifiers of Potassium Peroxymonosulfate:
CAS No.: 70693-62-8
EC No.: 274-778-7
Molecular formula: KHSO₅
Molecular weight: 152.17 g/mol

Chemical Name: Potassium peroxymonosulfate
CAS: 70693-62-8
Molecular Formula: 2KHSO5.KHSO4.K2SO4
Molecular Weight: 614.7

CAS Number: 10058-23-8
ChemSpider: 8053100
ECHA InfoCard: 100.030.158
PubChem CID: 11804954
UNII: 040ZB27861
CompTox Dashboard (EPA): DTXSID1034840
InChI: InChI=1S/K.H2O5S/c;1-5-6(2,3)4/h;1H,(H,2,3,4)/q+1;/p-1
Key: OKBMCNHOEMXPTM-UHFFFAOYSA-M
InChI=1S/K.H2O4S/c;1-4-5(2)3/h;1H,(H,2,3)/q+1;/p-1
Key: GZHFEBOLZPYNER-UHFFFAOYSA-M
InChI=1/K.H2O5S/c;1-5-6(2,3)4/h;1H,(H,2,3,4)/q+1;/p-1
Key: OKBMCNHOEMXPTM-REWHXWOFAJ
SMILES: [K+].[O-]S(=O)(=O)OO

CAS No:37222-66-5
Chemical Name: Potassium peroxymonosulfate
CBNumber: CB3159260
Molecular Formula: H3KO13S3(-4)
Molecular Weight: 346.29
MDL Number: MFCD00040551

Product Number: O0310
Molecular Formula / Molecular Weight: 2KHSO5·KHSO4·K2SO4 = 614.74 
Physical State (20 deg.C): Solid
Storage Temperature: Room Temperature (Recommended in a cool and dark place, <15°C)
Store Under Inert Gas: Store under inert gas
Condition to Avoid: Hygroscopic
CAS RN: 37222-66-5
Related CAS RN: 70693-62-8
Reaxys Registry Number: 13178559
PubChem Substance ID: 87558561

Properties of Potassium Peroxymonosulfate:
Appearance: White crystalline powder or granules
Odor: Odorless or slight characteristic odor
Solubility: Soluble in water
Chemical nature: Strong oxidizer

Chemical formula: KHSO5
Molar mass: 152.2 g/mol
Appearance: white solid

Melting point: >70°C (dec.)
Density: 1.12-1.20
storage temp.: Store at room temperature
solubility: Water (Slightly)
form: Granular Crystalline Powder
color: White
PH: pH:1.4～1.9(50g/l, 25℃)
Water Solubility: 250 G/L (20 ºC)
Sensitive: Hygroscopic
Stability: Hygroscopic
InChI: InChI=1S/K.H2O5S.2H2O4S.H/c;1-5-6(2,3)4;2*1-5(2,3)4;/h;1H,(H,2,3,4);2*(H2,1,2,3,4);/p-4
InChIKey: LCPQECOVADAKCO-UHFFFAOYSA-J
SMILES: [KH].S([O-])(=O)(=O)OO.S([O-])([O-])(=O)=O.S(O)([O-])(=O)=O

Molecular Weight: 152.17 g/mol
Hydrogen Bond Donor Count: 1
Hydrogen Bond Acceptor Count: 5
Rotatable Bond Count: 1
Exact Mass: 151.91817579 Da
Monoisotopic Mass: 151.91817579 Da
Topological Polar Surface Area: 95 Ų
Heavy Atom Count: 7
Complexity: 105
Isotope Atom Count: 0
Defined Atom Stereocenter Count: 0
Undefined Atom Stereocenter Count: 0
Defined Bond Stereocenter Count: 0
Undefined Bond Stereocenter Count: 0
Covalently-Bonded Unit Count: 2
Compound Is Canonicalized: Yes

Specifications of Potassium Peroxymonosulfate:
Appearance: White to Almost white powder to crystal
Purity(Iodometric Titration): 42.0 to 48.0 %(as KHSO5)
IR: confirm to structure

Appearance: White,freely flowing powder or granule
Active Oxygen Content,%: ≥4.50
Loss on drying,%: ≤0.1
Bulk density,g/L: ≥800
pH Value (10g/L,25℃): 2.0~2.3
Particle size (0.850~0.075 mm): ≥90.0

Related compounds of Potassium Peroxymonosulfate:
Potassium persulfate

Names of Potassium Peroxymonosulfate:

IUPAC name:
Potassium peroxysulfate