Product Description
PPS has good thermal and chemical stability, as well as excellent mechanical strength, but its low molecular weight may cause disproportionation and cross-linking.
It is used as a brightener and leveling agent in nickel plating. With high purity and long service life, it helps produce bright, smooth, and flexible nickel coatings, often used with saccharin, acetylene compounds, and wetting agents.
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Chemical Properties
| 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℃ |
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Product Application
PPS (3-(1-Pyridinio)-1-propanesulfonate, CAS 15471-17-7) is a core zwitterionic electroplating additive. It acts as powerful secondary brightener and leveling agent for Watts nickel plating, delivering glossy, ductile and uniform nickel layers even under high current density. It pairs well with saccharin and wetting agents for decorative & functional nickel coating on hardware, auto parts and electronics. It also serves as auxiliary additive in acid copper plating, surfactant intermediate, and raw material for daily chemical & pharmaceutical fine chemical synthesis, featuring high purity, low decomposition and long bath service life.
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