2yo ferric oxalate?

Near my home (2)

D
Near my home (2)

  • 2
  • 3
  • 86
Not Texas

H
Not Texas

  • 9
  • 2
  • 100
Floating

D
Floating

  • 5
  • 0
  • 45

Forum statistics

Threads
198,537
Messages
2,776,844
Members
99,639
Latest member
LucyPal
Recent bookmarks
0

sly

Subscriber
Joined
Nov 12, 2006
Messages
1,675
Location
Nanaimo
Format
Multi Format
Hi guys and gals. After a fairly stressful year, I'm finally going to get back to pt/pd printing - at least until the next crisis hits. My ferric oxalate will be 2 years old next week. It's been refrigerated the whole time. Should I give it a try, or just dump and start from fresh made?
 
OP
OP
sly

sly

Subscriber
Joined
Nov 12, 2006
Messages
1,675
Location
Nanaimo
Format
Multi Format
It's the liquid - looks fine. I do have some powder, so can mix up more. It's just hard to dump a bottle of chemicals I barely used.
 

Ian Leake

Subscriber
Joined
Mar 25, 2005
Messages
1,630
Location
Switzerland
Format
Analog
It's the liquid - looks fine. I do have some powder, so can mix up more. It's just hard to dump a bottle of chemicals I barely used.

Scott is right. Dump it. Ferric Oxalate is so much cheaper than platinum or palladium, and by the time you've worked out that it is stale you will have wasted a much larger value of noble metals.
 

TheFlyingCamera

Membership Council
Advertiser
Joined
May 24, 2005
Messages
11,546
Location
Washington DC
Format
Multi Format
If it works at all, it will be grainy, unresponsive, the contrast will be way off, and as Ian said, most importantly you'll have wasted several dollars worth of platinum or palladium to prove that a few cents worth of Ferric Oxalate wasn't good anymore.

The dry powder keeps a very long time. Once dissolved into solution, it's got about a six month to one year lifespan.
 
OP
OP
sly

sly

Subscriber
Joined
Nov 12, 2006
Messages
1,675
Location
Nanaimo
Format
Multi Format
Yeah, I figure it would be penny wise and pound foolish to try it out, so I've mixed up a fresh 25ml. 2 years ago I mixed up 100 ml, and barely used a tenth of it. Might have used half, if my life hadn't kept interfering with my photography. I'll stick to 25ml at a time from now on. Can always mix up more if I use it up before it's best-by date.
Turns out it is sunny this afternoon, rather the the rain that was predicted. I'm gardening while the FO cools and (hopefully) finishes dissolving.
 
Photrio.com contains affiliate links to products. We may receive a commission for purchases made through these links.
To read our full affiliate disclosure statement please click Here.

PHOTRIO PARTNERS EQUALLY FUNDING OUR COMMUNITY:



Ilford ADOX Freestyle Photographic Stearman Press Weldon Color Lab Blue Moon Camera & Machine
Top Bottom