Products Description
PPS (Pyridinium propyl sulfobetaine) is a specialized low-molecular-weight zwitterionic compound widely utilized as a high-performance electroplating additive. It features solid thermal endurance, high chemical stability, and strong mechanical characteristics; however, its low molecular weight requires balanced formulation control to prevent disproportionation or unwanted cross-linking reactions.
Chemical Properties
| English Name | Pyridinium propyl sulfobetaine |
| English Synonyms | NDSB-201;PPS;PYRIDINIUM N-PROPYL SULFOBETAINE;3-(1-PYRIDINIO)-1-PROPANESULFONATE;3-(1-PYRI DINIO)-1-PROPANESULFONATE INNER SALT;3-(1-PYRIDINIO)PROPANESULFONATE;3-(1-PYRIDINO)-1-PRO PANE SULFONATE;1-(3-SULFOPROPYL)PYRIDINIUM BETAIN |
| CAS Number | 15471-17-7 |
| Molecular Formula | C8H11NO3S |
| Molecular Weight | 201.24 |
| EINECS Number | 239-491-3 |
| Melting point | 275-277°C |
| Density | 1.53[at 20°C] |
| Vapor pressure | OPa at 25℃ |
| Flash point | 160 °C |
| Storage conditions | Sealed in dry,Room Temperature |
| Solubility | Methanol (slightly soluble), water (slightly soluble) |
| Form | White powder |
| Color | White |
| Water solubility | 240.5g/L at 25℃ |
| BRN | 1621867 |
| InChI | InChl=1S/C8H11NO3S/c10-13(11,12)8-4-7-9-5-2-1-3-6-9/h1-3,5-6H,4,7-8H2 |
| InChIKey | REEBJQTUUTGAL-UHFFFAOYSA-N |
| SMILES | C1C=CC=C[N+]=1CCCS([O-])(=O)=0 |
| LogP | -2.78 at 21.5℃ |
Product Application of PPS CAS# 15471-17-7
Serving as a premier secondary brightener and leveling agent in decorative and functional nickel electroplating, PPS delivers exceptional finish quality across diverse plating environments:
High-Performance Nickel Brightening: Functions as a highly efficient secondary brightener that produces mirror-like, level, and highly flexible nickel coatings without causing stress or stretching defects in the plated layer.
Synergistic Additive Formulations: Typically combined with saccharin, acetylenic compounds, and wetting agents to optimize grain refinement, coverage, and ductility.
Static Bath Capability: Highly effective in motionless or non-flowing electrolyte systems where uniform current density distribution is critical.
