Sulfur dioxide solution
Sulfur dioxide solution (CAS: 7782-99-2, H2SO3, MW: 82.08) is an aqueous solution of sulfur dioxide, commonly known as sulfurous acid. This inorganic acid exhibits reducing properties and is primarily utilised as a chemical intermediate and synthetic reagent. It is also employed in various industrial processes, including its use as a bleaching agent and a disinfectant. Tech Serve Solutions supplies this compound for research and synthesis applications.
- IUPAC
- Sulfurous acid,Sulfurous anhydride
- Synonyms
- Sulfurous acid,Sulfurous anhydride
Chemical Synthesis
Sulfur dioxide solution serves as a versatile reagent in the synthesis of various organic and inorganic compounds. Its reducing capabilities are valuable in multiple reaction pathways.
Reducing Agent
This solution is effectively used as a reducing agent in chemical processes. It can facilitate reactions requiring the reduction of other chemical species.
Bleaching Agent
In certain industrial applications, sulfur dioxide solution functions as a bleaching agent. It is employed to decolourise materials through reductive processes.
Disinfectant
The compound possesses disinfectant properties and can be utilised in applications where microbial control is necessary. Its efficacy stems from its chemical reactivity.
| Molecular weight | 82.08 |
|---|---|
| Linear formula | H2SO3 |
| Density | 1.03 g/mL at 25 °C(lit.) |
| Concentration | ≥6% |
| Vapour density | 2.3 (vs air) |
Hazard statements
- H314Causes severe skin burns and eye damage
Precautionary statements
- P280Wear protective gloves, clothing and eye/face protection
- P305IF IN EYES
- P310Immediately call a POISON CENTER or doctor
| Protective equipment | Faceshields, full-face respirator (US), Gloves, Goggles, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Transport (UN / ADR) | UN 1833 8 / PGII |
| Water hazard class (WGK, DE) | 1 |
| Hazard codes (EU) | C |
| Risk statements (R) | 20-34 |
| Safety statements (S) | 26-36/37/39-45 |
| Cation traces | Fe: ≤5 ppmheavy metals (as Pb): ≤2 ppm |
| Anion traces | chloride (Cl-): ≤5 ppm |
| Ignition residue | ≤0.005% |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is Sulfur dioxide solution used for?
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Sulfur dioxide solution is primarily used in chemical synthesis as a reducing agent and as a bleaching agent and disinfectant in various industrial processes.
What is the CAS number and formula for Sulfur dioxide solution?
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The CAS number for Sulfur dioxide solution is 7782-99-2, and its chemical formula is H2SO3.
What grade and purity does Tech Serve Solutions supply for Sulfur dioxide solution?
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Tech Serve Solutions supplies Sulfur dioxide solution with a concentration of ≥6%. We do not represent this product as USP, BP, EP, or any other pharmacopoeia grade.
How should Sulfur dioxide solution be handled safely?
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Sulfur dioxide solution is corrosive and causes severe skin burns and eye damage (H314). Always wear appropriate personal protective equipment, including gloves, goggles, and face shields. Use in a well-ventilated area with appropriate respiratory protection. Handle with extreme caution.
Is Sulfur dioxide solution packed and exported by Tech Serve Solutions?
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Yes, Tech Serve Solutions is a global supplier and exporter of fine chemicals, including Sulfur dioxide solution, adhering to all necessary shipping regulations.
How can I request a sample or quote for Sulfur dioxide solution?
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To request a sample or quote, please contact our sales team through the website or by phone, providing your specific requirements.
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