Rapid universal sensing cell

Chemistry: electrical and wave energy – Processes and products

Patent

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Details

2041292, 204195R, G01N 2700, C25F 300, G01N 2726

Patent

active

040584380

ABSTRACT:
An electrolytic cell which comprises a standard calomel electrode supported n a container containing an etchant and a sample of the alloy or metal to be etched are electrically connected to a millivoltmeter or an X-Y recorder. The variation in potential generated by the electrolytic cell is measured as a function of time and used to determine the optimum time at which to end the process.

REFERENCES:
patent: 3375178 (1968-03-01), Locke
patent: 3438875 (1969-04-01), Watanabe et al.
patent: 3874959 (1975-04-01), Hoekstra et al.

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