Ideas?The boat has silver ion addition to its fresh water. Sometimes shore water containing chlorides is bunkered. These two react with sunlight to form silver halides which cause discolouration of the jacuzzi. This is a bugger to get off. What's the best easy to get chemical to get rid of it?
Removing silver halide deposits
- sTeamTraen
- After Pie
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Removing silver halide deposits
From a friend who works on a large, posh boat:
Something something hammer something something nail
Re: Removing silver halide deposits
Sodium or ammonium thiosulfate? It's what photographic fixer uses to remove remaining silver halide from film after development.
Re: Removing silver halide deposits
This is a chapter on cleaning silver from a manual about marine archeology. So admittedly a somewhat different context. But I notice that the section on chemical cleaning says:
- "A solution of 15 percent ammonium thiosulfate in distilled water with a 1 percent non-ionic wetting agent ... is effective for removing silver chloride"
- and perhaps more straightforwardly, "ammonia dissolves silver chloride"
IANA chemist.
- "A solution of 15 percent ammonium thiosulfate in distilled water with a 1 percent non-ionic wetting agent ... is effective for removing silver chloride"
- and perhaps more straightforwardly, "ammonia dissolves silver chloride"
IANA chemist.
- Bird on a Fire
- Princess POW
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Re: Removing silver halide deposits
A revolution of the proletariat would sort that little problem right out.
Mind you, that's my solution to everything.
Mind you, that's my solution to everything.
We have the right to a clean, healthy, sustainable environment.
Re: Removing silver halide deposits
another semi thiological fixBird on a Fire wrote: ↑Thu Jul 08, 2021 11:18 pmA revolution of the proletariat would sort that little problem right out.
Mind you, that's my solution to everything.
My avatar was a scientific result that was later found to be 'mistaken' - I rarely claim to be 100% correct
ETA 5/8/20: I've been advised that the result was correct, it was the initial interpretation that needed to be withdrawn
Meta? I'd say so!
ETA 5/8/20: I've been advised that the result was correct, it was the initial interpretation that needed to be withdrawn
Meta? I'd say so!
- sTeamTraen
- After Pie
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Re: Removing silver halide deposits
One of the unspoken rules of the expat community here in Majawkah is that you don't speak ill of the rich, even if you don't work on the yachts or in high-end tourism. Plenty of people live hand-to-mouth, but the whole place runs on the basis that some people have more money than others to a greater or lesser extent. Many of the yachties are fun people who accept that serving canapés to internally dead rich people is the cost of having an interesting semi-nomadic lifestyle that beats working in an office.Bird on a Fire wrote: ↑Thu Jul 08, 2021 11:18 pmA revolution of the proletariat would sort that little problem right out.
Mind you, that's my solution to everything.
Something something hammer something something nail
Re: Removing silver halide deposits
You can’t just buy ammonia these days, at least not in the U.K. and I assume in the EU too.bolo wrote: ↑Thu Jul 08, 2021 10:33 pmThis is a chapter on cleaning silver from a manual about marine archeology. So admittedly a somewhat different context. But I notice that the section on chemical cleaning says:
- "A solution of 15 percent ammonium thiosulfate in distilled water with a 1 percent non-ionic wetting agent ... is effective for removing silver chloride"
- and perhaps more straightforwardly, "ammonia dissolves silver chloride"
IANA chemist.
where once I used to scintillate
now I sin till ten past three
now I sin till ten past three
Re: Removing silver halide deposits
Google shopping search for "cleaning ammonia"Grumble wrote: ↑Fri Jul 09, 2021 5:09 amYou can’t just buy ammonia these days, at least not in the U.K. and I assume in the EU too.bolo wrote: ↑Thu Jul 08, 2021 10:33 pmThis is a chapter on cleaning silver from a manual about marine archeology. So admittedly a somewhat different context. But I notice that the section on chemical cleaning says:
- "A solution of 15 percent ammonium thiosulfate in distilled water with a 1 percent non-ionic wetting agent ... is effective for removing silver chloride"
- and perhaps more straightforwardly, "ammonia dissolves silver chloride"
IANA chemist.
The thiosulphate is probably less objectionable and dangerous than aqueous ammonia, Google shopping search for that.
Re: Removing silver halide deposits
Photographic fixer is a little hipster-niche these days but still fairly easy to get. It's not ammonia smelling, IMO it's more like extra-strong salt and vinegar. Now I'm curious to know what that odour is.
Re: Removing silver halide deposits
It depends on the brand of fixer, but some do have quite a strong ammonia smell. Some others don't when fresh, but do when old.
Are you thinking of stop bath with the vinegar smell?
- Boustrophedon
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Re: Removing silver halide deposits
Dad had a little bottle of silver nitrate for medicinal purposes, if he needed to remove the silver stains on his skin he used plain sodium thiosulphate.
Perit hic laetatio.
Re: Removing silver halide deposits
No, I generally used Ilford Hypam fixer, and it used to put me in mind of salt and vinegar crisps (while not actually smelling of vinegar, oddly).
- shpalman
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Re: Removing silver halide deposits
Might be sodium acetate being used as an acidity buffer?
having that swing is a necessary but not sufficient condition for it meaning a thing
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- tenchboy
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Re: Removing silver halide deposits
Just had a look at a bottle of Hypam sitting on the dark-room shelf in the bathroom but nothing to add I'm afraid.
"I love the smell of fixer in the morning"
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