Chrysotypes/TDP/ Disodium Salts

TERRY KING (101522.2625@compuserve.com)
03 Mar 96 10:36:32 EST

John

I caught the disodium point as your instructions are so clearly set out.

Just a few input/output points.

If Rising took out the size why not put it back in again with deionised ossein
?

What difference does it make if one uses Iron III oxalate ? I make this up
cheaply in the dark room.

Which gold chloride ? My Johnson Mathey Catalogue lists gold chloride, AuCl 3 at
L795.90 for 5 g (glycine is on the opposite page for L 15.90 for 500 g, this
comment is for those interested in 19 century developers). But H Au Cl 4 at
L110.50 for 5 g.

We did a bit of mole crunching on the basis of the proportions and came up with
some very funny answers. Is it possible to express this in terms of percentage
solutions ? Particularly of the gold chloride because I do not want to pour too
much of it down the drain even at the lower price.

It is only this part of the sensitiser that caused us difficulty.

Thanks again

Terry.