CAS 18880-36-9 DPS Copper electroplating additive N,N-Dimethyl-dithiocarbumyl propylsulfonate
| Chemical name | N,N-Dimethyl-dithiocarbumyl propyl sulfonate |
| Empirical formula | C6H12NNaO3S3 |
| Molecular weight | 265 |
| CAS No. | 18880-36-9 |
Characteristic:
| Appearance | White flaky crystal |
| Assay(%) | ≥98 |
| Solubility(20°C) | 22% water solution is transparent and clear |
| PH | 2.5-6.0 |
| Concentration in the bath | 10-100mg/L |
Application: DPS is used as top brightener in acid copper baths for decorative and electronic parts. DPS can be combined with polyethylene glycols, non ionic surfactants, aminic polymers and other sulphur compounds. A combination with dye stuffs is also possible. Copper layers which are deposited with DPS are bright and ductile.
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