Benzenesulfonic acid
Benzenesulfonic acid (CAS: 98-11-3), with the molecular formula C₆H₅SO₃H and a molecular weight of 158.18 g/mol, is a key organic acid. It serves as a strong acid catalyst and an intermediate in various chemical syntheses. Its utility spans diverse industrial applications, often employed in the production of dyes, pharmaceuticals, and detergents due to its chemical reactivity and properties as a strong acid.
Chemical Synthesis Intermediate
Benzenesulfonic acid acts as a crucial building block in the synthesis of various organic compounds. It is frequently used in the production of sulfonated derivatives, which find applications in pharmaceuticals and agrochemicals.
Dye Production
This compound is employed in the manufacturing of azo dyes and other colorants. The sulfonic acid group imparts water solubility to the dye molecules, enhancing their application in textile dyeing.
Catalysis
As a strong organic acid, benzenesulfonic acid functions effectively as an acid catalyst in various organic reactions, including esterifications and alkylations. Its efficacy makes it a valuable reagent in industrial chemical processes.
Surfactant Manufacturing
It is used in the synthesis of certain surfactants and detergents. The hydrophobic benzene ring and hydrophilic sulfonic acid group contribute to surface-active properties.
| Molecular weight | 158.18 |
|---|---|
| Linear formula | C6H5SO3H |
| Assay | 90% |
Hazard statements
- H290May be corrosive to metals
- 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 | Eyeshields, Faceshields, full-face particle respirator type N100 (US), Gloves, respirator cartridge type N100 (US), type P1 (EN143) respirator filter, type P3 (EN 143) respirator cartridges |
|---|---|
| Flash point | >113 °C / >235.4 °F |
| Transport (UN / ADR) | UN 2583PSN2 8 / PGII |
| Water hazard class (WGK, DE) | 1 |
| Hazard codes (EU) | C |
| Risk statements (R) | 34 |
| Safety statements (S) | 26-36/37/39-45 |
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 Benzenesulfonic acid used for?
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Benzenesulfonic acid is used as an intermediate in chemical synthesis, particularly for dyes and pharmaceuticals, and as an acid catalyst in various organic reactions. It also finds application in the production of surfactants.
What is the CAS number and formula for Benzenesulfonic acid?
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The CAS number for Benzenesulfonic acid is 98-11-3, and its molecular formula is C₆H₅SO₃H.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Benzenesulfonic acid with an assay of 90%. This product is suitable for general chemical synthesis and research purposes. TSS does not represent this product as USP, BP, EP, or any other pharmacopoeia grade.
How should Benzenesulfonic acid be handled safely?
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Benzenesulfonic acid is corrosive and can cause severe skin burns and eye damage (H314). It is also corrosive to metals (H290). Appropriate personal protective equipment, including eyeshields, face shields, and gloves, must be worn. Handle in a well-ventilated area and avoid contact with metals. Refer to the Safety Data Sheet for detailed handling instructions.
Is Benzenesulfonic acid regulated?
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Based on the provided data, Benzenesulfonic acid is classified under UN 2583, Class 8, Packing Group II for transportation. It is not indicated as a controlled or scheduled substance in this data.
How can I request a quote or sample for Benzenesulfonic acid?
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To request a quote or sample of Benzenesulfonic acid, please contact our sales team through the website or by phone. Provide the product name (Benzenesulfonic acid), CAS number (98-11-3), and the desired quantity.
How is Benzenesulfonic acid shipped and exported?
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Benzenesulfonic acid is shipped according to regulations for corrosive substances (UN 2583, Class 8, PG II). Tech Serve Solutions, as a global supplier, handles the export documentation and logistics to ensure compliant international delivery.
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