Benzenesulfonic Acid Sodium Salt Cas 515-42-4
Benzenesulfonic Acid Sodium Salt, with CAS number 515-42-4, is a small water-soluble sulfonic acid salt. It is mainly used as an electroplating additive, washing emulsifier, and industrial dispersant.
1. Anionic hydrophilic additive, highly soluble in water, insoluble in mineral oil and organic solvents;
2. Low foaming, biodegradable, belonging to small molecule sulfonates;
3. Resistant to high temperature, hard water, and acid-base stability.
| Item | Standard |
| Appearance | White powder |
| Purity% | ≥98 |
| Chloride(as Cl)% | ≤0.01 |
| Iron(as Fe)% | ≤0.002 |
| Heavy metals(as Pb)% | ≤0.002 |
| Insoluble matter% | ≥0.01 |
| Loss on drying % | ≤2.0 |
| Single impurity% | ≤0.1 |
1. Electroplating additives
Electroplating brighteners, positioning agents, complexing agents, commonly used auxiliary additives for nickel plating / zinc plating.
2. Daily care / cleaning
Surfactant solubilizers, solubilizers, turbidity regulators, used to enhance the solubility of surfactants and prevent stratification.
3. Chemical intermediates
Sodium Salt of Benzenesulfonic Acid, organic synthesis raw material, used for preparing phenol, resorcinol, etc.
4. Concrete / water treatment
Dispersants, retardant auxiliaries, water quality stabilizers.
5. Dye industry
Sodium Salt of Benzenesulfonic Acid, dye dispersant, leveling agent auxiliaries.
• Standard Packing: 25 kg/bag; 25 kg/drum
• MOQ: to be confirmed by grade and destination
• Lead Time: to be confirmed by order quantity and production schedule
• Shipping: sea / air / express options available
• Store in a cool, dry, and well-ventilated place.
• Keep container tightly closed and protected from moisture.
• Avoid direct sunlight, heat, and open flame.
• Follow SDS guidance for incompatible materials.










