07-07-2012, 08:27 AM
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Continued from:

At first I cleaned the razor with baking soda and vinegar to remove dirt gently, then I moved to a first immersion in Baking Soda, Hot Water and Aluminum Foil to allow the oxidation to release the sulfur from the Silver and onto the Aluminum Foil.

The following process explanation is excerpted from this website:

"When silver tarnishes, it combines with sulfur and forms silver sulfide. Silver sulfide is black. When a thin coating of silver sulfide forms on the surface of silver, it darkens the silver. The silver can be returned to its former luster by removing the silver sulfide coating from the surface. There are two ways to remove the coating of silver sulfide. One way is to remove the silver sulfide from the surface. The other is to reverse the chemical reaction and turn silver sulfide back into silver. In the first method, some silver is removed in the process of polishing. In the second, the silver remains in place. Polishes that contain an abrasive shine the silver by rubbing off the silver sulfide and some of the silver along with it. Another kind of tarnish remover dissolves the silver sulfide in a liquid. These polishes are used by dipping the silver into the liquid, or by rubbing the liquid on with a cloth and washing it off. These polishes also remove some of the silver. The tarnish-removal method used in this experiment uses a chemical reaction to convert the silver sulfide back into silver. This does not remove any of the silver. Many metals in addition to silver form compounds with sulfur. Some of them have a greater affinity for sulfur than silver does. Aluminum is such a metal. In this experiment, the silver sulfide reacts with aluminum. In the reaction, sulfur atoms are transferred from silver to aluminum, freeing the silver metal and forming aluminum sulfide. Chemists represent this reaction with a chemical equation:

3 Ag2S + 2 Al [IMG] 6 Ag + Al2S3

Silver sulfide and aluminum "gives you" silver and aluminum sulfide.

The reaction between silver sulfide and aluminum takes place when the two are in contact while they are immersed in a baking soda solution. The reaction is faster when the solution is warm. The solution carries the sulfur from the silver to the aluminum. The aluminum sulfide may adhere to the aluminum foil, or it may form tiny, pale yellow flakes in the bottom of the pan. The silver and aluminum must be in contact with each other, because a small electric current flows between them during the reaction. This type of reaction, which involves an electric current, is called an electrochemical reaction. Reactions of this type are used in batteries to produce electricity."

Here are pictures of the cleaning process where the sulfur is being removed.

[Image: 14417485661_0b2327f1bd_z.jpg]

[Image: 14234194939_d360f0829d_z.jpg]

After a time in the Baking Soda and Aluminum Foil mixture, we will see what is available for the final polishing process.
Here is a view of the razor following the solution cleaning.

[Image: 14419546392_5d8fd82e60_z.jpg]

[Image: 14419703204_34af20d7eb_z.jpg]

Now the razor is ready to be polished because as much Silver that could be restored back to the handle has been restored.
We will discuss polishing in Part #3.

Continued on this thread.


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 10-25-2012, 08:49 PM
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how many times did you have to reapply the solution to completely remove the tarnish?

I only had enough baking soda to let my razor soak twice. I'm going to pick some more up tomorrow and continue doing it until more of the tarnish is gone.

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 10-26-2012, 07:35 AM
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I'm glad someone made a post on this. In most cases, we've found that it can't replace a little polishing, but it can certainly help. We use flitz for just about everything. We used to use MAAS but have found that Flitz is much more forgiving.

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