11 June 2012

Quote Originally Posted by Murray Kelly View Post
If you want to experiment with the calcium salt remember that carbonates and hydroxides will precipitate a cloud of insoluble calcium carbonate or hydroxide.
Murry:
I had forgotten about the possibility of carbonate and hydroxide precipitation. Thanks for the "heads-up"

Quote Originally Posted by Gerald C Koch
Calcium ascorbate is rather useless for developers since it will precipitate calcium sulfite from most developer formulations. Do you have a required primary developing agent like Phenidone, Dimezone, or Metol?
Gerald:
I have a good supply of hydroquinone and metol.

Thanks to all for your comments.

Regards,
Darwin