Electro Plating, High-Purity Solvents

HBOPS Na 3-2-butyne-1-ol-Sulfopropyl Ether Sodium Salt)

HBOPS Na, scientifically known as 3-(2-butyn-1-yloxy)propane-1-sulfonate sodium salt, is a specialized acetylenic anionic surfactant widely utilized within the electrochemical and surface finishing sectors. As a high-performance chemical intermediate, this compound functions primarily as a potent leveling agent and brightener in nickel electroplating baths. The molecule integrates a triple-bond functional group with a hydrophilic sulfopropyl ether moiety, providing unique surface-active properties that facilitate the deposition of smooth, mirror-like metallic coatings. Its chemical structure allows for high solubility in aqueous environments while maintaining stability under the electrolytic conditions found in industrial plating tanks. By effectively controlling the polarization of the cathode, HBOPS Na ensures uniform thickness and reduces the formation of surface defects such as pitting or roughness. Furthermore, it operates efficiently at low concentrations, making it a cost-effective additive for achieving high-quality decorative and functional finishes on various metal substrates. This substance remains essential for modern high-end electroplating formulations and components.

Attributes

Key Features and Benefits

Exceptional leveling capability for mirror-smooth nickel deposits.
Strong grain refinement properties for enhanced surface hardness.
Superior compatibility with other brighteners like PPS or BBI.
Low consumption rate ensures long-term operational cost efficiency.
Significantly reduces the occurrence of high-current density burning.
High chemical stability prevents premature degradation in bath.
Anionic nature allows for effective dispersion and wetting.
Minimizes internal stress in the deposited nickel layers.
Promotes uniform thickness across complex geometry components.
Enhances the ductility of the final plated metal film.
Resistant to oxidation during continuous electrolytic operations.
Improves overall aesthetic quality of the finished products effectively in industrial plating environments.

Specifications

Technical Highlights

Chemical Formula: C7H11NaO4S.
Molecular Weight: Approximately 214.21 g/mol.
Appearance: Typically supplied as clear, colorless to yellowish liquid.
Assay Purity: Minimum 50% aqueous solution standard.
Functional Group: Active acetylenic triple bond (C≡C).
Ionic Character: Strongly anionic sulfonate surfactant.
Solubility: Fully miscible in water and polar solvents.
Operating pH: Stable within the acidic range (3.5–5.0).
Reaction Mechanism: Cathodic adsorption inhibits dendrite growth.
Shelf Life: Excellent stability under standard storage conditions.
Refractive Index: Consistent batch-to-batch optical density parameters.
Trace Elements: Low impurity profile (heavy metals/chlorides).
Vapor Pressure: Negligible at room temperature conditions.
Density: Approximately 1.15-1.25 g/cm3 for the standardized liquid formulation concentrate variant.

Download Technical Data Sheet (TDS)

Practical industry uses

Applications

Bright Nickel Plating: Primary leveling agent for decorative coatings.
Automotive Industry: Coating bumpers, rims, and interior trim pieces.
Electronics Manufacturing: Electroplating connectors and circuit board components.
Hardware Finishing: Producing mirror-like surfaces on plumbing fixtures.
Aerospace Applications: Surface treatment for corrosion-resistant functional layers.
Specialty Alloys: Additive for electroforming processes and nickel-cobalt baths.
Consumer Goods: Plating of appliances, bicycles, and tool handles.
Electrochemical Research: Reference surfactant for studying polarization effects.
Industrial Tooling: Improving wear resistance through uniform nickel-deposition.
Precious Metal Plating: Synergistic additive in multi-layer coating systems.
Metal Furniture: High-gloss finishing for frames and structures.
Jewelry Industry: Undercoating for gold and silver.