Description

Peroxomonosulphuric Acid, also known as Caro's acid, is a powerful oxidizing agent and strong acid with the CAS number 7722-86-3. Its unique peroxy structure makes it exceptionally effective for advanced oxidation processes and demanding surface activation. This compound is essential for industries requiring high-performance chemical treatments for purification, synthesis, and material modification. Key sectors include water treatment, electronics manufacturing, and specialty chemical synthesis.

Application

• Advanced Oxidation Processes (AOPs): Used as a potent oxidant for the degradation of persistent organic pollutants (POPs) and recalcitrant compounds in industrial wastewater.
• Surface Etching & Cleaning: Employed in the electronics and semiconductor industries for precision cleaning and etching of silicon wafers and other components.
• Pulp & Paper Bleaching: Acts as a high-efficiency bleaching agent in the production of pulp, offering an alternative to traditional chlorine-based methods.
• Swimming Pool & Spa Treatment: Serves as a powerful shock treatment and disinfectant, effectively eliminating contaminants and organic matter.
• Specialty Chemical Synthesis: Utilized as an oxidizing reagent in organic synthesis for the production of fine chemicals and pharmaceuticals.
• Metal Surface Treatment: Applied for pickling and passivation of metals to remove oxides and prepare surfaces for further processing.
• Disinfection & Sanitization: Effective in high-level disinfection applications for industrial equipment and facilities.

Basic Information

Product Name	Peroxomonosulphuric Acid
CAS No.	7722-86-3
Molecular Formula	H2SO5
Molecular Weight	114.08 g/mol
Synonyms	Caro's Acid; Peroxymonosulfuric Acid; Peroxosulfuric Acid; Sulfuric Peracid; Sulfomonoperacid; Persulfuric Acid; Peroxy Sulfuric Acid; HSO5- (ion form)
EINECS	231-766-6

Quality Control

Our Peroxomonosulphuric Acid is manufactured under strict quality control protocols to ensure batch-to-batch consistency and high performance. We provide comprehensive Certificates of Analysis (COA) for every shipment, detailing key parameters such as active oxygen content, assay, and impurity profiles. Our quality management system is designed to meet the rigorous demands of industrial and specialty chemical applications, ensuring reliable supply and technical support.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, well-ventilated area away from incompatible materials such as organic compounds, reducing agents, and strong bases. Due to its nature as a strong acid and oxidizer, it should be kept separate from flammable materials. Recommended storage temperature is between 15°C and 25°C. Containers must be kept upright and clearly labeled.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Assay (by Titration)	Min. 40% - 50% (as H2SO5)
Active Oxygen Content	Min. 5.6%
Free Sulfuric Acid (H2SO4)	Balance
Density (at 20°C)	~1.8 g/cm³
Stability	Decomposes slowly at room temperature

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.