Product Description
PPS is a specialized low-molecular-weight functional additive tailored for nickel plating formulations. Despite susceptibility to disproportionation and cross-linking reactions due to its molecular characteristics, its unique activation and brightening properties make it an indispensable auxiliary material in high-quality nickel electroplating.

Product Parameters
| English Name | 3-(1-Pyridinio)-1-propanesulfonate |
| 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℃ |
Application Scenarios
Widely adopted in industrial nickel plating systems, it mainly acts as a high-performance secondary brightener and leveling agent. It optimizes surface flatness, glossiness and ductility of nickel layers without causing coating defects, enabling high-standard finish plating for various industrial components.
