fixing fiber paper using hypo

"sreenath" wrote in message
om...
They however have "acid fixer", and to a question as to if it has
ammonium thiosulfate or regular Hypo, he said he does not know.

If it's a liquid, it's ammonium thiosulfate. If it is sold as a powder,
it's sodium thiosulfate.

Jim

"sreenath" wrote in message
om...
They however have "acid fixer", and to a question as to if it has
ammonium thiosulfate or regular Hypo, he said he does not know.

If it's a liquid, it's ammonium thiosulfate. If it is sold as a powder,
it's sodium thiosulfate.

Jim

"sreenath" wrote in message
om...
They however have "acid fixer", and to a question as to if it has
ammonium thiosulfate or regular Hypo, he said he does not know.

If it's a liquid, it's ammonium thiosulfate. If it is sold as a powder,
it's sodium thiosulfate.

Jim

(sreenath) wrote

I now have fiber paper(Ilford Multigrade warmtone as well as normal
tone) and want to do as much "archival processing" as possible.


Emulsions are just that; RC, FB or Film. The thiosulfate works to
dissolve the unreduced silver halides. A. Thio. is Quicker than S. Thio.
for reasons I won't go into at this time.


I read that Ilford recommends rapid fixer for paper so that the paper
base does not absorb too much hypo.


Ilford's method is one method to achive archival results.
Personaly I think the very time tested two-bath fix, A. or S. Thio.,
the most sure way to "archival processing".


I can not get Ammonium thiosulfate here in India, so have to use only
Hypo.


S. Thio. will do a complete job of fixing. It can be used with
nothing else added. I use it very dilute, one-shot. If it's to be
used multi-shot add a little sulfite.
I've seen no evidence that A. Thio. has any more capacity
than S. Thio. The A. Thio. here is less expensive per thiosulfate ion.
Besides, A. Thio. spoils. Dry S. Thio. can be fresh mixed, quick-
quick. Dan

(sreenath) wrote

I now have fiber paper(Ilford Multigrade warmtone as well as normal
tone) and want to do as much "archival processing" as possible.


Emulsions are just that; RC, FB or Film. The thiosulfate works to
dissolve the unreduced silver halides. A. Thio. is Quicker than S. Thio.
for reasons I won't go into at this time.


I read that Ilford recommends rapid fixer for paper so that the paper
base does not absorb too much hypo.


Ilford's method is one method to achive archival results.
Personaly I think the very time tested two-bath fix, A. or S. Thio.,
the most sure way to "archival processing".


I can not get Ammonium thiosulfate here in India, so have to use only
Hypo.


S. Thio. will do a complete job of fixing. It can be used with
nothing else added. I use it very dilute, one-shot. If it's to be
used multi-shot add a little sulfite.
I've seen no evidence that A. Thio. has any more capacity
than S. Thio. The A. Thio. here is less expensive per thiosulfate ion.
Besides, A. Thio. spoils. Dry S. Thio. can be fresh mixed, quick-
quick. Dan

On 5 Aug 2004 16:31:07 -0700, (Dan
Quinn) wrote:

.... Dry S. Thio. can be fresh mixed, quick-
quick. Dan


aug604 from Lloyd Erlick,

For many years I failed to understand the significance of
this statement.

Sodium thiosulfate purchased at a favorable, bulk price is
the best thing since the aluminum tripod.

It dissolves effortlessly, even if it's lumpy, it stores
easily and indefinitely, it has next to no odor (and it's a
pleasant odor if you sniff a container of it dissolved in
water), plus it's cheap. If only it would fix dinner!

regards,
--le
________________________________
Lloyd Erlick Portraits, Toronto.
voice: 416-686-0326
email:
net: www.heylloyd.com
________________________________

On 5 Aug 2004 16:31:07 -0700, (Dan
Quinn) wrote:

.... Dry S. Thio. can be fresh mixed, quick-
quick. Dan


aug604 from Lloyd Erlick,

For many years I failed to understand the significance of
this statement.

Sodium thiosulfate purchased at a favorable, bulk price is
the best thing since the aluminum tripod.

It dissolves effortlessly, even if it's lumpy, it stores
easily and indefinitely, it has next to no odor (and it's a
pleasant odor if you sniff a container of it dissolved in
water), plus it's cheap. If only it would fix dinner!

regards,
--le
________________________________
Lloyd Erlick Portraits, Toronto.
voice: 416-686-0326
email:
net: www.heylloyd.com
________________________________