Sodium 4-hydroxybenzenesulfonate
CAS 825-90-1
EC 212-550-0
Formula C6H6O4S.Na
MW 196.16 g/mol
Salts & Minerals Personal Care & CosmeticsTextile, Leather & Paper Preservation & BiocideSurface Modification & Wetting
Description
Sodium 4-hydroxybenzenesulfonate (CAS 825-90-1), also known as sodium sulfocarbolate, sodium phenol sulfonate, and sodium p-phenolsulfonate, is an aromatic sulfonate salt derived from phenol. It carries no assigned E-code and is classified under HS code 2908.99.1500 for customs purposes.
In personal care formulations, it functions as an antimicrobial agent and skin protectant by disrupting microbial cell membranes at low concentrations. In textile and leather processing, its sulfonate group adsorbs onto fiber surfaces, improving wettability and enabling more uniform dye uptake. It also serves as a colorant intermediate in certain paper treatment processes.
This material is supplied as a solid and is subject to REACH registration requirements within the EU. Procurement teams should confirm supplier documentation includes a current Safety Data Sheet and certificate of analysis. Standard industrial packaging formats apply; buyers should request grade specifications directly from the supplier.
In personal care formulations, it functions as an antimicrobial agent and skin protectant by disrupting microbial cell membranes at low concentrations. In textile and leather processing, its sulfonate group adsorbs onto fiber surfaces, improving wettability and enabling more uniform dye uptake. It also serves as a colorant intermediate in certain paper treatment processes.
This material is supplied as a solid and is subject to REACH registration requirements within the EU. Procurement teams should confirm supplier documentation includes a current Safety Data Sheet and certificate of analysis. Standard industrial packaging formats apply; buyers should request grade specifications directly from the supplier.
Physical Properties
| Melting Point | >300°C |
| Boiling Point | 350°C[at 101 325 Pa] |
| Density | 1.656[at 20℃] |
| Color | White |
| Odor | essentially odorless |
| Form | Solid |
| Water Solubility | 92.4g/L at 20℃ |
| Vapor Pressure | 0Pa at 20℃ |
| Log P | -2.79 at 20℃ |
Safety & Handling (Learn More)
Warning GHS07
H
H319
P
P280P264+P265P337+P317P305+P351+P338
Trade & Regulatory
| HS Code | 2908.99.1500 |
Other Names
sodium p-phenolsulfonatesodium p-phenolsulfonate anhydrousSODIUM SULFOCARBOLATESODIUM PHENOL SULFONATEP-PHENOL SULFONIC ACID, NASodium p-hydroxyphenylsulfonate
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Raw Materials
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