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Peroxymonosulfuric Acid

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Peroxymonosulfuric Acid

EINECS
CAS No. 7722-86-3 Density
Solubility Melting Point
Formula H2O5S Boiling Point
Molecular Weight 114.08 Flash Point
Transport Information Appearance
Safety Strong irritant. Powerful oxidizer. An explosive. Explosive reaction acetone; alcohols; aromatics (e.g., aniline; benzene; phenol); platinum; manganese dioxide; silver. Incompatible with acetone; catalysts; fibers. When heated to decomposition it emits toxic fumes of SOx. See also PEROXIDES, INORGANIC; PEROXIDES, ORGANIC. Risk Codes
Molecular Structure Molecular Structure of 7722-86-3 (PEROXYMONOSULFURIC ACID			) Hazard Symbols
Synonyms

 

Peroxymonosulfuric Acid Chemical Properties

Chemistry informtion about Peroxymonosulfuric Acid (CAS NO.7722-86-3) is:
IUPAC Name: Tetraoxathiolane 5,5-Dioxide
Synonyms: Peroxomonosulphuric Acid ; Peroxysulfuric Acid ; Persulfuric Acid ; Sulfomonoperacid ; Peroxymonosulfuric Acid ; Caro Acid ; Peroxosulfuric Acid
MF: O6S
MW: 128.0614
EINECS: 231-766-6 
Density: 1.7-1.8 g/cm3
Following is the molecular structure of Peroxymonosulfuric Acid (CAS NO.7722-86-3) is:

Peroxymonosulfuric Acid History

 Peroxymonosulfuric Acid was first described by Heinrich Caro, after whom it is named.

Peroxymonosulfuric Acid Uses

 Peroxymonosulfuric Acid (CAS NO.7722-86-3) has been used for a variety of disinfectant and cleaning applications, e.g., swimming pool treatment and denture cleaning. Alkali metal salts of H2SO5 show promise for the delignification of wood. Ammonium, sodium, and potassium salts of Peroxymonosulfuric Acid are used in the plastics industry as polymerization initiators, etchants, desizing agents, soil conditioner, and for decolorizing and deodorizing oils. Potassium peroxymonosulfate, KHSO5, is the potassium acid salt of peroxymonosulfuric acid. It is widely used as an oxidizing agent.

Peroxymonosulfuric Acid Safety Profile

Strong irritant. Powerful oxidizer. An explosive. Explosive reaction acetone; alcohols; aromatics (e.g., aniline; benzene; phenol); platinum; manganese dioxide; silver. Incompatible with acetone; catalysts; fibers. When heated to decomposition it emits toxic fumes of SOx. See also PEROXIDES, INORGANIC; PEROXIDES, ORGANIC
RIDADR: 1483
HazardClass: 5.1
PackingGroup: II

Peroxymonosulfuric Acid Analytical Methods

The laboratory scale preparation of Caro's acid involve the combination of chlorosulfuric acid and hydrogen peroxide.
H2O2 + ClSO2OH → H2SO5 + HCl
Large scale production of Caro's acid is usually done on site, due to its instability. According to the patent by Martin, Caro's acid is produced by reacting >85% sulfuric acid and >50% hydrogen peroxide ("Piranha solution").
H2O2 + H2SO4 → H2SO5 + H2O

Peroxymonosulfuric Acid Specification

 Peroxymonosulfuric Acid (CAS NO.7722-86-3) is H2SO5, a liquid at room temperature. In this acid, the S(VI) center adopts its characteristic tetrahedral geometry; the connectivity is indicated by the formula HO-O-S(O)2-OH. It is sometimes confused with H2S2O8, known as peroxydisulfuric acid. The disulfuric acid, which appears to be more widely used as its alkali metal salts, has the structure HO-S(O)2-O-O-S(O)2-OH. As with all strong oxidizing agents, Peroxymonosulfuric Acid should be kept away from organic compounds such as ethers and ketones because of its ability to peroxidize the compound, creating a highly unstable molecule such as acetone peroxide.

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