Phenolsulfonic Acid
Product Description
| Product | Phenolsulfonic Acid |
| CAS | 98-67-9 |
| Formula | C6H6O4S |
| Synonym | PSA65, 4-Phenolsulfonic Acid Salt, 4-hydroxybenzenesulfonic acid, p-Sulfophenol, Benzenesulfonic acid, 4-hydroxy- |
Typical Product Specifications
| Iron | 50 ppm max |
| Sulfones | 1.0% max |
| Sulfuric Acid | 2.8% max |
| Appearence | clear to brown transparent liquid |
| Freezing Point | 3 to 6 C |
| Vapor Density | >1.0 |
| Evaporation Rate | <1 |
| Water solubility | Miscible at 25C |
| Density | 1.32 to 1.36 g/ml at 20C |
| pH | <1.0 |
| Boiling Point | 270 to 271 C Decomposes |
| Flash Point | >198F |
| Assay | 65 to 67% |
| Refractive Index | 1.489 (20) n (C/D) |
| Free Phenol | 1.0% max |
| Freezing Point | 3 C max |
| Molecular weight | 174.18 |
| Notes | Used in oilfield chemicals, metal working, textile dye manufacturing, chemical intermediates, and as a polymerization catalyst. Available in 65% aq. solution. |
| Class | Dyes - Lakes - Pigments, Chemical Intermediates |
| Function | Dyes and colors, Catalyst, Chemical Intermediate |
| Industry | Industrial, Textiles |
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