[pure-silver] Re: Adding Pot Bromife to PC-TEA
- From: "Koch, Gerald" <gkoch02@xxxxxxxxxx>
- To: "'pure-silver@xxxxxxxxxxxxx'" <pure-silver@xxxxxxxxxxxxx>
- Date: Mon, 3 Jan 2005 15:59:04 -0500
I made up a similar TEA developer last night and found that it is just barely
possible to get 0.2 g KBr to dissolve in 100 ml of hot TEA. The operative words
here a "just barely". It takes a lot of stirring. I suggest grinding up the
potassium bromide before attempting to dissolve it.
You could heat up the premade developer and then add the bromide. It will
dissolve after a lot of stirring. You could also make up a solution of 0.2 g of
KBr in 100 ml of water and then when you are making up a working solution of
developer just add an amount equal to the amount of PC-TEA concentrate required.
BTW, data on ammonium bromide seems to indicate that it would be easier to
dissolve than the potassium salt. I have not tried this out as yet.
Jerry
-----Original Message-----
From: pure-silver-bounce@xxxxxxxxxxxxx [mailto:pure-silver-bounce@xxxxxxxxxxxxx]
On Behalf Of Leo Christoffer
Sent: Monday, January 03, 2005 3:45 PM
To: PureSilverNew
Subject: [pure-silver] Adding Pot Bromife to PC-TEA
I have 100ml of PC-TEA I made up a month ago.
My question can I now add some Pot Bromide .2g to this premade up
formula? I made a 250ml batch and used the other 100ml.
In my reading lately many are advising using some Pot bromide to cut
down on film fog.
What are your opinions on adding the chemical to the 100ml I have or
sould I start a new batch.
Thanks
Leo
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