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Old 04-07-2011, 03:33 PM   #1
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Default Oxiclean on Stainless I DARE you to prove me wrong

I was cleaning a corny with about 1/2 scoop of oxiclean in 5 gal of hard tap water from the bath tub. I was planning on letting it sit for 30 min then washing it out but got distracted and 3 days pasted with it sitting in there. Finally remembered it and dumped it out and washed the keg. Concerned that the oxiclean may be bad for stainless steel I hit the forums to see what people had to say. Seems like there is a split decission. Some say it is 100% safe even for long soaks, some say it will pit and tarnish the stainless steel.

To go a little deeper lets dive into what oxiclean really is (MSDS):

Sodium carbonate (also known as washing soda or soda ash) - used as a water softener at high concentrations in stainless steel water tanks, not going to pit stainless but will precipitate out metals in water.

Sodium carbonate Peroxyhydrate: Breaks down to produce Hydrogen Peroxide (H202) which further becomes 02 and H2. H202 is can be stored for years in SS tanks and only at VERY high concentrations and temperature does H202 cause harm to SS, not going to pit SS at the concentrations in oxiclean.

Ethoxylated Alcohol C12-C16 used as a surfactant and has oxidation qualities but is harmless to SS in the quantities in oxiclean.

Now lets look at the properties of SS that make it rust resistant. Stainless steel's corrosion resistance is due to a thin, chromium-rich, transparent oxide film on the surface. This protective film develops when more than 10.5 percent of chromium is present in the alloy and when the gas or liquid environment the stainless steel is exposed to provide oxygen to its surface. Therefore oxidation should help preserve the properties of SS. Bleach however is terrible for SS as the Chloride ions attach the oxide film allowing for corrosion. Oxiclean veristile does not contain Chlorine.

In my case I have some mineral build up which was most likely precipitated from the hard water and Sodium carbonate. I have not had a chance to acid wash this corrosion away but I see no signs of corrosion or pitting.

A couple of side notes most cleaners such as oxiclean and even bleach loose their harmful properties after 24 hrs. If you dont believe me take some bleach and dilute it to 10% in tap water. Wait 24 hours and smell it and try using it on something with a pH indicator. It will not have anywhere near the affectivness as fresh dilute bleach. Some people have stated that they ruined a stainless steel bowl and the like with concentrated oxiclean which may have been an old formulation containing chlorine. It is also possible it was a cheap bowl and wasnt true high quality stainless steel like our expenisve used cornies

As always I am open to debate and would like to see some well built "no your wrong" comments.

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Old 04-07-2011, 03:36 PM   #2
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Quote:
Originally Posted by ekjohns View Post
As always I am open to debate and would like to see some well built "no your wrong" comments.
You misspelled "you're".

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Old 04-07-2011, 03:44 PM   #3
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I don't know about stainless but I can verify oxiclean and aluminum don't like each other very much.

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Old 04-07-2011, 03:45 PM   #4
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I have left oxi/based cleaners in my kegs for weeks with no noticeable damage. I can’t see or feel any pits. It does react with some of my cheap SS parts such as T's and clamps and such. But at the correct dilution level I don’t think it will damage kegs or pots. But what do I know.

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Old 04-07-2011, 03:47 PM   #5
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You misspelled "you're".

F'ing hilarious...
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Old 04-07-2011, 03:49 PM   #6
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I don't know about stainless but I can verify oxiclean and aluminum don't like each other very much.
Per the data sheet dont use on soft metals but ok for SS.

http://www.melrosechem.com/english/data_eng/hs0853.pdf
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Old 04-07-2011, 03:56 PM   #7
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I run oxy through my rims system when I need that real clean feeling. You know, when I'm not feeling quite so fresh down there, below my false bottom. It's like a big hot douche for my brewery. I run it up to 150-160f while running through the system. Works great!!!

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Old 04-07-2011, 04:41 PM   #8
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I would worry more about the chlorine in the tap water I mixed the oxyclean with than about the oxyclean itself.

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Old 04-07-2011, 04:42 PM   #9
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you could prove it right or wrong by looking inside your keg right?

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Old 04-07-2011, 05:42 PM   #10
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I use it on my corny's all the time.. works like a charm. When I got them they were in pretty bad shape, and oxy cleaned them up REAL nice.

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