Removing silver stains?

PeteZ8

Member

Joined

Mar 10, 2008

Messages

408

Location

Newtown, PA

Format

Medium Format

• Jul 2, 2009

• #1

I have what I believe is a silver stain in the sink (kitchen) I use for washing prints. It's a faux-granite plastic sink.

What can I do to deplete the silver and remove the stains?

 

Ian Grant

Subscriber

Joined

Aug 2, 2004

Messages

23,262

Location

West Midland

Format

Multi Format

• Jul 2, 2009

• #2

Dish cleaner, a bit of Potassium Permanganate & salt, wipe with strong fixer. Or Ferricyanide & Bromide, then strong fix. Bleach = Sofium Hypo Chlorite

Should clean easily, even a kitchen cleaner mild abrasive.

Ian

 

OP

OP

PeteZ8

Member

Joined

Mar 10, 2008

Messages

408

Location

Newtown, PA

Format

Medium Format

• Jul 2, 2009

• #3

Wouldn't you know it; someone JUST gave me a small bottle of Potassium Permanganate!

Don't ask....

Thanks!

 

Ian Grant

Subscriber

Joined

Aug 2, 2004

Messages

23,262

Location

West Midland

Format

Multi Format

• Jul 2, 2009

• #4

I won't tell the Department of Homeland Security

Ian

 

Photo Engineer

Subscriber

Joined

Apr 19, 2005

Messages

29,018

Location

Rochester, NY

Format

Multi Format

• Jul 2, 2009

• #5

Test if first. Permanganate can leave a brown stain behind all on its own. It could be impossible to get that stain out of the sink.

Another route would be to use plain blix for color paper. It is rather harmless to most everything and any stain it leaves behind can be removed by either EDTA or Dequest.

PE

 

trexx

Member

Joined

Nov 16, 2004

Messages

291

Location

Tucson

Format

4x5 Format

• Jul 2, 2009

• #6

I had/have a similar situation. used PP and fix. It appeared to have gone away but has returned a year later. HAve tried Farmers reducer and I'll let you know in another year if it is still gone.

 

RellikJM

Member

Joined

Feb 12, 2008

Messages

33

Location

Colorado

Format

35mm

• Jul 3, 2009

• #7

Photo Engineer said:

Test if first. Permanganate can leave a brown stain behind all on its own. It could be impossible to get that stain out of the sink.

Another route would be to use plain blix for color paper. It is rather harmless to most everything and any stain it leaves behind can be removed by either EDTA or Dequest.

PE

Click to expand...

Photographers' Formulary Lists 4 Kinds of EDTA when I do a search.

Ferric Ammonium EDTA
Ferric Sodium EDTA
EDTA Disodium Salt
EDTA Tetrasodium Salt

Which do I purchase to remove blix stains?

 

Photo Engineer

Subscriber

Joined

Apr 19, 2005

Messages

29,018

Location

Rochester, NY

Format

Multi Format

• Jul 3, 2009

• #8

The blix itself is a mixture of Ferric Ammonium EDTA + Ammonium Hypo. To remove stains from the blix itself, wash the area with some EDTA Disodium Salt.

PE