POTASSIUM PEROXYMONOSULFATE Chemical Properties

Melting point:

>70°C (dec.)

Density 

1.12-1.20

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

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

Colorless, beautiful crystals; hygroscopic; pure material stable for a few days, although with slight loss of active oxygen, the rate of decomposition is catalysed by the impurities formed; vigorous oxidizing agent. M.p. +45°C with slight decomposition.

Application

Potassium peroxosulfate is used for bleaching polyamide and cellulose fibers. However, it is ordinarily used only to clean wool and to reduce its shrinkage.

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

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