CAS Number: 93-11-8
Naphthalene-2-Sulfonyl Chloride is a reactive arylsulfonyl chloride intermediate used in the synthesis of naphthalene sulfonate-based superplasticisers, which are among the most widely used high-range water-reducing admixtures in concrete technology. It reacts with amines and alcohols to form sulfonamide and sulfonate derivatives with surfactant and dispersant properties essential to construction chemical applications. AB Enterprises supplies Naphthalene-2-Sulfonyl Chloride to specialty chemical manufacturers producing next-generation concrete admixtures and sulfonated naphthalene formaldehyde condensate superplasticisers. The compound's well-defined melting point and assay value support consistent use in sulfonation and condensation reactions. Proper handling precautions are required due to its reactive acyl chloride functionality.
| CAS Number | 93-11-8 |
| Molecular Formula | C10H7ClO2S |
| Molecular Weight | 226.68 g/mol |
| Appearance | White to pale yellow crystalline solid |
| Assay / Purity | ≥97.0% |
| Melting Point | 75–79 °C |
| pH (1% solution) | 1.0–3.0 (acidic on hydrolysis) |
| Storage | Store in a sealed container in a cool, dry area away from moisture, bases, and alcohols |
| Packaging | As per requirement |
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