Summary for sodium sulphate in spinbath Discussion
The thread on sodium sulphate in spinbath asks how to determine the Na2SO4 content in a bath containing H2SO4, ZnSO4, and Na2SO4. Jon Barrows, MSF, EHSSC, answered that the practical approach is to measure sodium by ICP and then calculate the sodium sulphate from that result. Terry Tomt also appears in the thread, but no separate technical advice is shown in the excerpt. The discussion is brief and focused on analytical measurement rather than a wet-chemistry titration or direct bath test. In short, the recommended method is instrumental analysis of sodium, followed by conversion to the sodium sulphate quantity based on the bath composition.
Q. Spinbath contains H2SO4, ZnSO4 & Na2SO4. How to check quantity of Na2SO4 in Spinbath?
Rajesh Pandey
chemical analysis – Mumbai, Maharashtra, India
August 13, 2010
 | A. You can analyze for the sodium cation by either ion chromatography, by ion selective electrode, or by colorimeter.
A. Measure Na by ICP and calculate. Terry Tomt |
