POTASSIUM PEROXYMONOSULFATE Chemical Properties

Melting point:

>70°C (dec.)

Density 

1.12-1.20

form 

Granular Crystalline Powder

color 

White

PH

pH:1.4～1.9(50g/l, 25℃)

Water Solubility 

250 G/L (20 ºC)

Sensitive 

Hygroscopic

CAS DataBase Reference

37222-66-5(CAS DataBase Reference)

EPA Substance Registry System

Potassium peroxymonosulfate sulfate (K5[HSO3(O2)]2(HSO4)(SO4)) (37222-66-5)

Safety Information

Hazard Codes 

O,C

Risk Statements 

8-22-34-42/43-37

Safety Statements 

22-26-36/37/39-45-17

RIDADR 

UN 3260 8/PG 2

WGK Germany 

1

HazardClass 

5.1

PackingGroup 

III

HS Code 

28334000

MSDS

• Language:English Provider:ACROS
• Language:English Provider:SigmaAldrich
• Language:English Provider:ALFA

POTASSIUM PEROXYMONOSULFATE Usage And Synthesis

Uses

Manufacture of dry laundry bleaches, detergent-bleach washing compound, scouring powders, plastic dishware cleaners, and metal cleaners; hair-wave neutralizers, pharmaceuticals; general oxidizing reactions.

Chemical Properties

white granular crystalline powder

Purification Methods

This is a stable form of Caro's acid and should contain >4.7% of active oxygen. It can be used in EtOH/H2O and EtOH/AcOH/H2O solutions. If active oxygen is too low. it is best to prepare it afresh from 1mole of KHSO5, 0.5mole of KHSO4 and 0.5mole of K2SO4. [Kennedy & Stock J Org Chem 25 1901 1960, Stephenson US Patent 2,802,722 1957.] A rapid preparation of Caro's acid is made by stirring finely powdered potassium persulfate (M 270.3) into ice-cold conc H2SO4 (7mL) and when homogeneous add ice (40-50g). It is stable for several days if kept cold. Keep away from organic matter as it is a STRONG OXIDANT. A detailed preparation of Caro's acid (hypersulfuric acid, H2SO5) in crystalline form m ~45o from H2O2 and chlorosulfonic acid was described by Fehér in Handbook of Preparative Inorganic Chemistry (Ed. Brauer) Academic Press Vol I p 388 1963.

POTASSIUM PEROXYMONOSULFATE(37222-66-5)Related Product Information

• o-Toluidine
• N,N-Diisopropylethylamine
• 4-Methoxybenzylchloride
• 2-Nitrotoluene
• Ammonium persulfate
• Di-tert-butyl peroxide
• Potassium persulfate
• Sodium hydride
• Trifluoromethanesulfonic anhydride
• Potassium bicarbonate
• POTASSIUM FERRATE(VI) 97
• Sodium percarbonate
• 3-Phenylpropionic acid
• FERROUS SULFATE
• Potassium peroxymonosulfate
• Potassium bisulfate
• Potassium
• Potassium sulfate