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Lapidary / Gemstone Community Forum
December 10, 2018, 08:28:10 am
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Pickle

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Author Topic: Pickle  (Read 2311 times)
RoyKims
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« Reply #15 on: July 17, 2011, 05:12:11 pm »

oh,  what kind of pickle for copper??
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Bentiron
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« Reply #16 on: July 18, 2011, 01:15:20 pm »

For my copper I still use my plain white vinegar. Now if you are doing brass you will get some "pinking" when you pickle it. The reason for this is you are leaching out the zinc from the brass and it makes it look "pink" where the flux has made contact around the join. A light sanding and polishing will restore the brass color. This happens most often when you get the metal too hot when soldering. Do you know what depletion gilding is in silver working? That is what is happening here only you're depleting the zinc instead of the copper as is in the sterling silver. You can take a copper item that has silver solder showing on it and do a plating of copper over that solder by using some older pickle that is all grody green, place a plain piece of steel in there and then put your copper in and the copper ions will plate out onto the you work. It not the least bit pleasant when you have it happen to one of your nice pieces of silver work though but great for your copper work.
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RoyKims
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« Reply #17 on: July 18, 2011, 08:15:43 pm »

B,
what an answer.     no, i didn't know but reading the context i do now. thanks
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milto
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« Reply #18 on: July 19, 2011, 08:49:55 pm »

Roy,

I was frustrated when I first tried Nickel Silver as I was still using all the products that I used for silver. When I finally changed over to products condusive to N/S I enjoyed using N/S.
These are the products I use:
Flux...Wolverine black flux for N/S
Pickle....Nickle Pickle Thunderbird item #717040
Polish Indian Jewelery Supply #267-HSHF-1 White N/S polish.

The pickle took the frustration out, the polish gave the desired results!!

Milt
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RoyKims
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« Reply #19 on: July 20, 2011, 06:46:41 am »

Roy,

Polish Indian Jewelery Supply #267-HSHF-1 White N/S polish.

The pickle took the frustration out, the polish gave the desired results!!

Milt

milt, can you polish the wire with this after it's on the stone or will it remove the stones polish. mike says he uses zam on his silver with the stone mounted..

roy
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spirit bear beads
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« Reply #20 on: July 20, 2011, 12:21:55 pm »

is rio pickle from rio grande??


roy

Yes from Rio Grande, comes dry powder and you mix it with water.
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Steve
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« Reply #21 on: July 20, 2011, 02:36:42 pm »

can you polish the wire with this after it's on the stone or will it remove the stones polish. mike says he uses zam on his silver with the stone mounted..

roy

For the majority of stones, they can be set prior to polishing.  However, there are certain really soft ones that are set after polishing like all ambers and dyed shells.  The amber will melt and the dyed shells will lose their dyed color.
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Steve.............The Silver Fox

My Photo Bucket site:  http://s743.photobucket.com/user/sferenz/library/?sort=3&page=1

milto
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« Reply #22 on: July 20, 2011, 05:35:49 pm »

Roy

I have had no proplems with the stone mounted. I always buff to the highest degree I can prior to mounting a stone. I find the metal polishes are really black and  a thorough washing and buffing with a polishing cloth does the trick.

The great thing about this hobby is you are always learning.I enjoy this forum and several other lapidary forums for that reason.

Good Luck
Milt
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mirkaba
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« Reply #23 on: October 28, 2011, 11:38:41 am »

I finally plugged in a new 'Lil Dipper" crockpot for my pickle solution. It developed a hairline crack the second time I used it. Pickle ran all over my welding table. Replaced it with a 1 1/2 Qt. Generic pot with a heavier removeable pot and no problems so far.....
I use 'Rio Pickle' from Rio Grande also. It does the job.
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Bob

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dickb
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« Reply #24 on: December 26, 2011, 02:54:00 pm »

Just read this thread and was wondering how much PH down is added to water to get the proper fluid to use as a silver pickle.

Thanks in advance.

Dickb
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will100
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« Reply #25 on: December 26, 2011, 03:52:45 pm »

All,

I use drain opener call "Liquid Fire" this is concentrated sulfuric Acid. I is important that you use this brand since many drain openers are Lye (sodium hydroxide and they will not work correctly as a pickle).

One bottle will last a very long time. Keep in a safe place.

This must be diluted 10 parts water to 1 part acid.

"Very Important " In diluting sulfuric acid,you must add the acid to the water.

I also keep mine in a small heated crock-pot.

After pickle I use a solution of 1 tablespoon sodium bicarbonate to one cup of water to neutralize the acid.

Then rinse in fresh water.

Use eye protection and latex or nitrile gloves.

Best Regards,
Will   
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hulagrub
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When you cultivate man, you turn up all the clods


« Reply #26 on: December 26, 2011, 06:19:48 pm »

We have found that vinegar in a baby crockpot works great. And cheap at around $2 a gallon!
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will100
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« Reply #27 on: December 26, 2011, 08:17:47 pm »

Many acids can be used.

1. Sulfuric acid - ACE Harware --- reacts with copper creating copper sulfate
2. Vinegar (Acetic acid) reacts with Copper Oxide creating Copper Acetate
2. Sparex No2 (Sodium Bisulfate)-- SFJS
3. Sulfamic Acid - The Home Depot  reacts with copper creating copper sulfate
4. Sodium Bisulfate -- Rio Grande or Nava Ph Decreaser,  same as Sparex No 2  reacts with copper creating copper sulfate

Sulfuric is very inexpensive a quart cost less than $5 and that results in 11 quarts.

Sulfuric acid also works very fast and removes flux nicely as well.

I got the information from.

Jewelry Making by Murry Bovin pages 33 and 34. This is a great reference book.


Vinegar is the safest but works slower.


NOTE:

Copper Acetate very toxic to aquatic life. Poisons
Copper Sulfate  very toxic to aquatic life.  Poisons


Best Regards,
Will
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will100
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« Reply #28 on: December 27, 2011, 07:31:06 am »

Corrections:
   
   
Many acids can be used.

1. Sulfuric acid - ACE Harware --- reacts with copper oxide creating copper sulfate
2. Vinegar (Acetic acid) reacts with Copper Oxide creating Copper Acetate
2. Sparex No2 (Sodium Bisulfate)-- SFJS
3. Sulfamic Acid - The Home Depot  reacts with copper oxide creating copper sulfamate (I believe ?)
4. Sodium Bisulfate -- Rio Grande or Nava Ph Decreaser,  same as Sparex No 2  reacts with copper creating copper sulfate

Sulfuric is very inexpensive a quart cost less than $5 and that results in 11 quarts.

Sulfuric acid also works very fast and removes flux nicely as well.

I got much of the information from.

Jewelry Making by Murry Bovin pages 33 and 34. This is a great reference book.


Vinegar is the safest but works slower.


NOTE:

Copper Acetate very toxic to aquatic life. Poison
Copper Sulfate  very toxic to aquatic life.  Poison


Best Regards,
Will
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dickb
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« Reply #29 on: December 27, 2011, 02:18:01 pm »

Thanks for the replies.

I have the PH Down, but just need to know how much of it to add to water to get a silver pickle solution. It was easier to get that send off to Rio to buy some Sparex.

Dickb
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Elegance in Jewelry
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GPAA, PLP - Blackhawk G&MC, CVR&MS
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