I have been experimenting with electrolysis for producing oxyhydrogen and using potassium carbonate as an electrolyte. After several hours of electrolysis, I notice the plates began to tarnish and after 24 hours, are now dark brown. The plates are made of 316 stainless steel and the electrolyte remains clear.
When I chose to use K2CO3; I thought that it would not decompose during electrolysis but now I suspect that it is decomposing and electroplating the stainless steel plates with carbon. If this is the case; will this have an adverse effect on the plates ability to conduct and produce oxyhydrogen? Also, is CO2 being produced?