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1-(2-HYDROXY-3-SULFOPROPYL)-PYRIDINIUM BETAINE is a Nickel plating Leveling Agent

1-(2-HYDROXY-3-SULFOPROPYL)-PYRIDINIUM BETAINE is a Levelling Agent, which increases the ability of an electroplating solution to preferentially fill in defects and scratches on the surface.

1-(2-HYDROXY-3-SULFOPROPYL)-PYRIDINIUM BETAINE assures shining materials that not only look good but are also extremely durable. 
Because nickel demonstrates a relatively high degree of hardness and wear resistance and offers protection against corrosion, it is robust when it comes to diluted acids and caustic solutions. 

These properties are optimally demonstrated in our bright nickel layers, which makes them ideally suited for mechanical and corrosion-stressed components, at the same time fulfilling the strictest decorative requirements. 

1-(2-HYDROXY-3-SULFOPROPYL)-PYRIDINIUM BETAINE enables a perfect result without irregularities.

The levelling of the surface in the electrodeposition of metals occurs when less metal is deposited on the micropeaks than in the microvalleys. 

This can be effected by means of a special additive: 1-(2-HYDROXY-3-SULFOPROPYL)-PYRIDINIUM BETAINE Levelling Agent

1-(2-HYDROXY-3-SULFOPROPYL)-PYRIDINIUM BETAINE suppresses electrodeposition on the peaks to a greater extent than in the valleys and which are incorporated in the cathodic deposit.

The modern nickel baths used for decorative-protective plating have leveling properties thanks to 1-(2-HYDROXY-3-SULFOPROPYL)-PYRIDINIUM BETAINE, which make possible the filling in, that is, the leveling of polishing scratches and microirregulatorities in the surface of the substrate, and thus reduce or eliminate expensive polishing and buffing operations to produce a lustrous surface.

1-(2-HYDROXY-3-SULFOPROPYL)-PYRIDINIUM BETAINE is used in formulation of brightener systems for electroplating in bright Nickel bath. 

1-(2-HYDROXY-3-SULFOPROPYL)-PYRIDINIUM BETAINE (Solid) Nickel Plating Chemical is a nickel plating additive that is a white to almost white powder with the chemical name of 1-(2-Hydroxy-3-sulfonatopropyl)pyridinium. 

1-(2-HYDROXY-3-SULFOPROPYL)-PYRIDINIUM BETAINE is used as a tough leveling agent in nickel bath. 

1-(2-HYDROXY-3-SULFOPROPYL)-PYRIDINIUM BETAINE (Solid) Nickel Plating Chemical has a molecular weight of 217.2 and a pH of 2.0 to 7.

1-(2-HYDROXY-3-SULFOPROPYL)-PYRIDINIUM BETAINE is very powerful levelling & brightening additive which produces extremely brilliant coating.
1-(2-HYDROXY-3-SULFOPROPYL)-PYRIDINIUM BETAINE is usually used in combination with Acetylenic compounds and wetting agents. 

The Nickel deposits produced in this manner are smooth, extra bright & ductile.


EC / List no.: 223-485-2

CAS no.: 3918-73-8

Mol. formula: C8H11NO4S

PPSOH is used to formulate brightener additives employed in the electroplating industry. 
PPSOH is used as a stronger leveling agent in nickel baths at a concentration of 50-500ml/L.

electroplating intermediate    
1. 1-(2-HYDROXY-3-SULFOPROPYL)-PYRIDINIUM BETAINE is an excellent nickel polishing agent intermediate, high leveling agent for nickel electroplating; It has the same leveling property as PPS and has good leveling performance in the middle and low regions.
2. 1-(2-HYDROXY-3-SULFOPROPYL)-PYRIDINIUM BETAINE also has excellent low current density zone displacement capability and needs to be used with BEO, PME, PESS or MOSS, saccharin, and auxiliary brighteners.
3. The central control index is adopted to control the reaction degree, and the process of removing free pyridine and sulfurous acid is increased simultaneously so that the product contains very little free pyridine, SO32-and organic salt content, thus ensuring the purity and stability of the product. 
1-(2-HYDROXY-3-SULFOPROPYL)-PYRIDINIUM BETAINE prevents abnormal phenomena such as the blackening of plated parts, roughness in high areas, blackening in low places, and more pinholes.
4. In the high current density region, the leveling property is excellent, the decomposition products are few, and the coating can produce a mainly white bright effect.

1-(2-HYDROXY-3-SULFOPROPYL)-PYRIDINIUM BETAINE is a strong leveling agent for preparing electroplating brightener and nickel plating
The Watt brightener formula for bright nickel plating is an efficient, bright additive, making good coating symmetry. 
Usually, 1-(2-HYDROXY-3-SULFOPROPYL)-PYRIDINIUM BETAINE is used with saccharin, acetylene compounds, and wetting agents. The nickel plating layer thus obtained is bright and flat with good ductility.


Pyridnium hydroxyl propyl
Pyridinium hydroxyl propyl sulfonate
Pyridinium hydroxysulfopropyl betaine
Pyridinium hydroxypropyl sulfobetaine
Pyridinium hydroxy propyl sulfobetaine
Pyridinium hydroxy propyl sulphobetaine
Pyridinium hydroxy propyl sulfobetaine
1-(2-hydroxy-3-sulfopropyl)-pyridinium betane
2-Hydroxy-1-(1-pyridyl)-3-propanesulfonate pyridinium,1-(2-hydroxy-3-sulfopropyl)-,hydroxide,innersalt
Pyridinium hydroxyl propyl sulphobetaine

Regulatory process name: 1-(2-hydroxy-3-sulphonatopropyl)pyridinium

IUPAC names
1-(2-hydroxy-3- sulphonatopropyl)pyridinium

1-(2-Hydroxy-3-sulfopropyl)-pyridinium betane






Trade names
Solar PPS-OH 8000


Magnesium Neodecanoate
Naphthenic Acid
Neodymium Versatate
Sodium Hypophosphite
Methane Disulfonic Acid - Potassium Salt
Hexafluorozirconium Acid
Fluoboric Acid 50%
Silver Cyanide 80,5%
Silver Nitrate Solution 50%
Silver Nitrate
Sodium Saccharin
Silicomolybdic Acid
Arsenic Trioxide
Malonic Acid
5 Sulfosalicylic Acid
Metansulphonic Acid
Butylated Hydroxytoluene - BHT
Silicon Carbide
PPS Piridin Propan Sultone
PME 900
Titanium Dioxide
Ammonium Bifluoride
Ammonium Citrate Tribasic
Iron Ammonium Citrate Red
Methane Disulphonic Acid 50%
Methane Disulfonic Acid - Sodium Salt
Benzylidene Acetone BA 77
DEP 151
Vanadyl Sulphate Solution
Cerium Octoate
Erbium Oxide
Lactic Acid
Gallium Metal
Germanium Metal

Ni. Electroplating Intermediates:
(TCA) Chloral hydrate (CAS No.302-17-0)
(PME) Propynol ethoxylate (CAS No. 3973-18-0)
(BEO) Butynediol ethoxylate (CAS No. 1606-3985-5)
(BMP) Butynediol propoxylate (CAS No. 1606-79-7)
(PAP) Propargyl alcohol propoxylate (CAS No. 3973-17-9)
(ALS35%) Sodium allyl sulfonate (CAS No. 2495-39-8)
(ALS25%) Sodium allyl sulfonate (CAS No. 2495-39-8)
(SAS95%) Sodium allyl sulfonate solid (CAS No. 2495-39-8)
(PPS-OH45%) Pyridinium hydroxy propyl sulfobetaine (CAS No. 3918-73-8)
(PPS-OH40%) Pyridinium hydroxy propyl sulfobetaine(CAS No. 3918-73-8)
(PS 25%) Propynesulfonic acid sodium salt (CAS No. 55947-46-1)
(PN) cformaldehyde sodium bisulftte addition compound (CAS No. 870-72-4)
(DEP) 1-Diethylamino-2-propyne (CAS No. 4079-68-9)
(POPDH) Propargyl-oxo-propane-2, 3-dihydroxy (CAS No. 13580-38-6)
(PPS) Pyridinium propyl sulphobetain (CAS No. 15471-17-7)
(PABS) Diethylaminopropyne formate (CAS No. 125678-52-6)
(BBI) Bis(benzene sulphonyl)-imide (CAS No. 2618-96-4)

Cu. Electroplating Intermediates:
DPS(N, N-dimethyl-dithiocarbamylpropyl sulfonic acid, sodium salt)(CAS.:18880-36-9)
EDTP(Q75)N, N, N'N'-tetra(2-hydropropyl)ethylene diamine(0-0-0)
H1 (2-mercapto thiazoline)(CAS.:96-53-7)
JPH (Aqueous cross-linking polyamide)(0-0-0)
IME (2-mercapto-benzimidazole)(CAS.:68794-57-9)
MPS (3-mercapto-1-propysulfonate, sodium salt)(CAS.:17636-10-1)
N (ethenethiourea)(CAS.:96-45-7)
SPS (Bis-(sodium sulfopropyl) disulfide)(CAS.:27206-35-5)
ZPS (3-S-isothiuronium propyl sulfonate)(CAS.:49625-94-7)
M (2-mercaptobenzimidazole)(CAS.:583-39-1)(CAS.:583-39-1)

Zn. Electroplating Intermediates:
(IME) Aqueous anodic polymer (CAS.:68794-57-9)
(BPE) Sodium of di(1-benzyl-3-carboxyl-1, 2-dihydro pyridyl-2)ether
(BCPC) 1-benzyl-3-carboxyl pyridinium chloride (CAS.:16214-95-5)
(MOME) Aqueous cationic polymer (CAS.:109882-76-0)
(BPC) 1-benzyl pyridinium 3-carboxylate (CAS.:15990-43-0)
(PEI-BZ) Benzylated

Zinc Plating Intermediate

Product         Chemical
Solar BA 77    3-Butene-2-one-4-phenyl, (Benzylidene Acetone)
Solar SCS 40    Sodium-4-(1-Methyl Ethyl) Benzene Sulphonate
Solar SES    Sodium-2-Ethyl-Hexyl-sulphate
Solar BPC    Benzyl-Pyridinium-3 Carboxylate
Solar TU    2-Thiouracil
Additive 4073    Polyalcohol Ether
Additive 8906    Formaldehyde Condensate Naphthalene Sulphonic Acid, Sodium Salt
Additive N 100    Niacin
Additive N 200    Anisaldehyde
Additive GA 78    Ortho Chloro Benzaldehyde Chloride
Solar SC 2812    Polymer
Solar IME    Imidazole – Epichlorohydrin
Solar EHP    Poly Ethylene imine modified
Solar DE    Cationic Amine Polymer
Solar OP 10    Long-chain Phenol Ethoxylate
Solar OPES    Phenol Ether Sulphate
Solar GES    Ethoxylated Glycerin
Solar SB    Sodium Benzoate
Solar APE    Anionic Phosphate Ester
Solar AEF    Ethoxylated Fatty Alcohol
Solar FA    Furfuraldelyde

Nickel Plating Intermediates

Product         Chemical
Solar SAS 144    Sodium Allyl Sulphonate 
Solar BEO 252    2-Butyne-1, 4-Diol Ethoxylate 
Solar PS    Sodium Propyne Sulphonate 
Solar BBIS    Bis-Benzene Sulphonylimide 
Solar BMP 176    2-Butyne-1, 4-Diol Propoxylate 

Solar PPS -OH 8000    1-(2 Hydroxy-3- Sulphopropyl Pyridinium Hydroxide, Inner Salt

Solar DEP 151    N, N-Diethyl -2-Propyne-1-Amine 
Solar DEP 50    N, N’-Diethyl-2-Propyne-Ammonium Sulphate 
Solar FE DEP    N, N’-Diethyl-2-Propyne-Ammonium Formate 
Solar DMP    1-Dimethylamino-2-Propyne 
Solar PME 900    Propargyl Alcohol Ethoxylate 
Solar TM    Thiomalic Acid 
Solar ATPN    Carboxyethyl Isothiuronium Betaine
Solar BoZ    1, 4, Butyne – Diol
Solar FBS    Formaldehyde reaction product
Solar STPS    Para toluene Sulphinate Acid, Sodium Salt
Solar Ni 1010    Sodium Benzene Sulphinate

product name    chemical nature    cas
RALU  PLATE DPS    3-(N,N-Dimethylthiocarbamoyl)-thiopropanesulfonsäure, Natrium Salz    18880-36-9
RALU  PLATE MPS    3-Mercaptopropanesulfonsäure, Natrium Salz    17636-10-1
RALU PLATE OPX    (O-Ethyldithiocarbonato)-S-(3-sulfopropyl)-ester, Kaliumsalz    93841-14-6
RALU PLATE SPS    Bis-(3-sulfopropyl)-disulfid, dinatrium salz    27206-35-5
RALU  PLATE UPS    3-[(Amino-iminomethyl)thio]-1-propanesulfonsäure    21668-81-5
RALU  PLATE ZPS    3-(2-Benzthiazolylthio)-1-propanesulfonsäure, Natriumsalz    49625-94-7
RALUFON   NO 14    Alkoxyliertes beta naphthol    63950-87-8
RALU  PLATE 2887    Vernetztes Polyamid mit Aminfunktionen    
RALU  PLATE CL 1000    Amines Polymer    
RALU  PLATE SPV    1-(3-Sulfopropyl)-2-vinylpyridinium betaine    6613-64-5
RALU  PLATE POPS liquid    Propargyl (3-sulfopropyl) ether, Natrium Salz    30290-53-0
RALU  PLATE HBOPS-Na    2-Butyne-1,4-diol-(3-sulfopropyl)ether, sodium salt    90268-78-3
RALU  PLATE PPSOH    1-(2-Hydroxy-3-sulfopropyl)-pyridinium betain    3918-73-8
RALU  PLATE PPS    1-(3-Sulfopropyl)-pyridinium Betain    15471-17-7
RALUFON   EA 15-90    Polyethyleneglycol octyl (3-sulfopropyl) diether, Kaliumsalz    154906-10-2
RALUFON   EN 16-80    Octaethyleneglycol octyl ether    26468-86-0
RALUFON   F 11-13    Polyethyleneglycol alkyl (3-sulfopropyl) diether, potassium salt    119481-71-9
RALUFON   NAPE 14-90    Polyethylen/propylenglycol (beta-naphthyl) (3-sulfopropyl) diether, Kaliumsalz    120478-49-1
RALU  PLATE Benzylidene Acetone    4-Phenyl-3-buten-2-on    1896-62-4
RALU  PLATE 135    Modifiziertes Polyamin in Wasser    
RALU  PLATE IME    Reaktionsprodukt aus Epichlorhydrin und Imidazol    68797-57-9
RALU  PLATE MOME    Reaktions produkt von Imidazol, Morpholin und Epichlorohydrin    109882-76-0
RALU  PLATE ZLE    Modifiziertes Polyamin in Wasser    68603-67-8
RALU  PLATE BN-Betaine    3-Carboxy-1-(phenylmethyl)pyridinium chlorid, natriumsalz    68133-60-8
RALU  MER 11    Kationisches Polymer mit Harnstoffgruppen    756424-87-0
1,3-Propanesultone    1,2-Oxathiolane-2,2-dioxide    1120-71-4
RALUFON   CAS-OH    N,N-Dimethyl-N-(3-cocoamidopropyl)-N-(2-hydroxy-3-sulfopropyl) ammonium betain    68139-30-0
NIPLEX B    Lösung von Ethylendiamin und T    107-15-3
GE 100 / Glycidyl ether 100    Glycerol glycidyl ether    25038-04-4
GE 500 / Glycidyl ether 500    Polyglycerol polyglycidyl ether    118549-88-5
PEG 400-DGE    Polyethyleneglycol-400 diglycidyl ether    39443-66-8
AGE    Allylglycidyl ether    106-92-3
IPGE    Isopropylglycidyl ether    4016-14-2

RALU  PLATE BN-Betaine    3-Carboxy-1-(phenylmethyl)pyridinium chlorid, natriumsalz    68133-60-8
RALU  MER 11    Kationisches Polymer mit Harnstoffgruppen    756424-87-0
1,3-Propanesultone    1,2-Oxathiolane-2,2-dioxide    1120-71-4
RALUFON   CAS-OH    N,N-Dimethyl-N-(3-cocoamidopropyl)-N-(2-hydroxy-3-sulfopropyl) ammonium betain    68139-30-0
NIPLEX B    Lösung von Ethylendiamin und T    107-15-3
GE 100 / Glycidyl ether 100    Glycerol glycidyl ether    25038-04-4
GE 500 / Glycidyl ether 500    Polyglycerol polyglycidyl ether    118549-88-5
PEG 400-DGE    Polyethyleneglycol-400 diglycidyl ether    39443-66-8
AGE    Allylglycidyl ether    106-92-3
IPGE    Isopropylglycidyl ether    4016-14-2

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