Pyridinium Propyl Sulfobetaine

Outstanding Heat & Chemical Resistance – PPS retains stable activity under high-temperature and corrosive plating conditions, delivering steady and reliable performance for rigorous nickel plating production.

Enhanced Coating Mechanical Durability – It effectively improves the structural toughness and compactness of nickel deposits, strengthening the finished coating’s overall durability and structural integrity.

High Purity for Extended Bath Lifespan – Featuring ultra-high purity, this brightener avoids contaminating the plating solution with harmful salts and impurities, stabilizing bath quality and significantly prolonging electrolyte service life.

Premium Brightening & Leveling Ability – When compounded with saccharin and other auxiliary additives, it generates ultra-smooth, bright and highly ductile nickel layers. It performs excellently even in static, non-circulating plating systems.

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.

Pyridinium Propyl Sulfobetaine

Product Parameters

English Name3-(1-Pyridinio)-1-propanesulfonate
English SynonymsNDSB-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 Number15471-17-7
Molecular FormulaC8H11NO3S
Molecular Weight201.24
EINECS Number239-491-3
Melting point275-277°C
Density1.53[at 20°C]
Vapor pressureOPa at 25℃
Flash point160 °C
Storage conditionsSealed in dry,Room Temperature
SolubilityMethanol (slightly soluble), water (slightly soluble)
FormWhite powder
ColorWhite
Water solubility240.5g/L at 25℃
BRN1621867
InChIInChl=1S/C8H11NO3S/c10-13(11,12)8-4-7-9-5-2-1-3-6-9/h1-3,5-6H,4,7-8H2
InChIKeyREEBJQTUUTGAL-UHFFFAOYSA-N
SMILESC1C=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.

Pyridinium Propyl Sulfobetaine

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