Okay, I get the drift. I shall not bother with the Ba Cl for salt prints.
Gerald, no offence taken, that is why I decided to ask first.

Curiously though my consideration of it's utility was driven by two factors:
1. I read somewhere that K Cl and Na Cl provide different tones in salt prints. True or false? Can anyone prove this?
2. I already have it and don't like to see things go to waste. Perhaps (based on Ole's initial reply) I could use it with some sulphide to provide a superior paper sizing?

Tee Hee... maybe I'll just chuck it over the fence of the nearest hazardous waste facility!! Sounds like the best option.