Can this material replace a finished bleach activator?
No. It is a synthesis intermediate for producing phenolsulfonate ester derivatives, rather than a direct replacement for the finished activator.
Sodium p-Phenolsulfonate Dihydrate 10580-19-5
Product Data
| Item | Data |
|---|---|
| CAS number | 10580-19-5 |
| Chemical name | Sodium 4-Hydroxybenzenesulfonate Dihydrate |
| Common synonym | Sodium p-Phenolsulfonate Dihydrate |
| Molecular formula | C6H5NaO4S·2H2O |
| Molecular weight | 232.19 g/mol |
| Physical form | Crystalline powder or crystals |
| Appearance | White to off-white |
| Hydration state | Dihydrate |
| Water of crystallization, theoretical | Approximately 15.52 wt% |
Product Characteristics
The para-substituted structure combines a phenolic hydroxyl group with a sodium sulfonate group on the same aromatic ring. The hydroxyl group provides a reaction site for ester and ether formation. This combination makes the material useful as a starting intermediate for sulfonated organic derivatives, including compounds used further downstream in detergent ingredient manufacture.
The crystalline dihydrate is a solid feedstock for subsequent processing into solutions, slurries or dehydrated material. Its suitability for a particular conversion depends on the reaction system. In ester manufacture, water removal is especially relevant because moisture can consume the acylating reagent through hydrolysis and reduce conversion to the target ester.
Applications
Bleach Activator Intermediates
Sodium p-phenolsulfonate is a starting intermediate for acyloxybenzenesulfonates, a family that includes detergent bleach activators. These derivatives are prepared by reacting the phenolic functionality with an appropriate acylating component. The dihydrate serves as an upstream feedstock, with dehydration incorporated into moisture-sensitive production routes. The resulting ester is the downstream detergent ingredient; CAS 10580-19-5 is the starting raw material.
Phenolsulfonate ester routes include reactions with carboxylic acid chlorides and acid anhydrides. The acyl component determines the structure of the resulting derivative. This gives the intermediate a defined role in the synthesis of different acyloxybenzenesulfonates, rather than a direct bleaching role in a finished detergent formulation.
Sulfonated Aromatic Ether Intermediates
The phenolic hydroxyl group can also undergo O-alkylation to form ether-linked aromatic sulfonates. One demonstrated conversion produces sodium 4-(2-methyl-2-propenoxy)benzenesulfonate from the dihydrate. This route adds an unsaturated side chain while retaining the aromatic sulfonate structure. Such derivatives provide starting points for further chemical modification in specialty synthesis.
Hydrate Form and Reaction Processing
The dihydrate contains two waters of crystallization. Water-sensitive acylation uses dehydrated phenolsulfonate feed, because retained water can hydrolyse acid chlorides or anhydrides during the reaction. A low residual-water requirement at the acylation stage therefore involves a separate drying operation when the incoming material is the dihydrate.
Drying also affects the physical condition and reactivity of the phenolsulfonate feed. Excessive thermal exposure can promote side reactions and affect subsequent ester conversion and product colour. Drying temperature and residence time are process-specific.
Storage and Handling
Store in a tightly closed container in a cool, dry, well-ventilated place, protected from direct light. Keep separate from strong oxidizing agents. Control dust during transfer and charging, and follow the product SDS for workplace protection and handling precautions.
Industrial Supply Support from Unilong
Unilong supports commercial procurement with product-document coordination, independent inspection and export delivery arrangements.
Independent Pre-Shipment Inspection
We can coordinate inspection by a buyer-appointed third party before dispatch. The inspection scope is agreed for the order and may include quantity, packaging, shipping marks or sampling.
Factory Visits and Buyer Audits
Where a production-site visit or buyer-appointed audit is part of supplier qualification, Unilong can discuss coordination with the production site. Access, audit scope and scheduling require the site's prior approval.
Product and Order Documentation
We help coordinate available specifications, COA and SDS with the production source. Agreed quality and quantity requirements form part of the commercial order, giving purchasing and receiving teams a common basis for checking the shipment.
Export Packing and Delivery Coordination
We coordinate packing and shipment arrangements for industrial orders, including agreed shipping marks and handling requirements. Transport arrangements take account of the material's handling requirements and the agreed delivery terms.
Ordering from Unilong
Unilong focuses on commercial raw material procurement for chemical manufacturing and industrial distribution. Laboratory projects and laboratory orders are outside our supply scope.
Procurement FAQ
Can the dihydrate go directly into water-free acylation?
The dihydrate requires suitable dehydration before a moisture-sensitive acylation stage. The residual-water limit belongs to the specific production process.
Does Unilong accept laboratory orders for this product?
No. This product enquiry is intended for commercial manufacturing and industrial raw material procurement.
What is needed for a bulk quotation?
Provide the required quantity, purity requirement and destination. Include any specific packing or product-document requirements.
Contact Unilong
Request a commercial quotation for sodium 4-hydroxybenzenesulfonate dihydrate, CAS 10580-19-5. Include the quantity and destination, together with any required specification, COA, TDS or SDS.
Write your message here and send it to us
