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BuiDoi
PostPosted: Jul 2nd, '14, 15:18 
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..
Not even new - just thinking Aquaponics.
Bought two IBC's and the guy said.. "Just wash it out - it's fully BioDegradable and safe"

Well the label says TEXAPON N70T, and that is SLS (Sodium Laurel Sulphate), and every "Good Health" article, tells me to avoid SLS..

So.... Will these tanks EVER be safe to grow table fish in..

Thanks in advance..

Peter
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ccBear
PostPosted: Jul 3rd, '14, 14:54 
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Have a read, google is a real good tool http://en.m.wikipedia.org/wiki/Sodium_laureth_sulfate
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BuiDoi
PostPosted: Jul 3rd, '14, 17:47 
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ccBear wrote:
Have a read, google is a real good tool http://en.m.wikipedia.org/wiki/Sodium_laureth_sulfate


""Toxicology research by the U.S. OSHA and IARC supports the conclusions of the Cosmetic, Toiletry, and Fragrance Association (CTFA) and the American Cancer Society that SLES is not a carcinogen.[citation needed], and also Australian Government Department of Health and Aging and the National Industrial Chemicals Notification and Assessment Scheme (NICNAS) have determined SLS does not react with DNA.[7]""

and WE believe the CTFA... NBL

the US accepts that RoundUp is perfectly safe, and yet much of the WORLD disagrees..

GOOGLE works fine in finding the stuff THEY want you to find..
I am inclined to refuse to use the IBC's but wondered if others had used them and not seen any problems.. Although, a USER would likely never know if there was a problem..

Quote:
Story at-a-glance
There are literally thousands of chemicals used in personal care products, and the U. S. government does not require any mandatory testing for these products before they are sold
Even "natural" products should be chosen carefully – in an OCA report released on March 14, 2008, at least one toxic, cancer-linked chemical was found in over 40 percent of products that call themselves "natural"
Nearly 16,000 studies mention the toxicity of sodium lauryl sulfate (SLS), a surfactant, detergent, and emulsifier used in thousands of cosmetic products and industrial cleaners
SLS has also been linked to nitrosamines, potent carcinogens that cause your body to absorb nitrates, which are known to be carcinogenic as well
Avoid exposure to these toxic agents by creating your own homemade beauty products and following a list of tips and tricks in this article


http://articles.mercola.com/sites/articles/archive/2010/07/13/sodium-lauryl-sulfate.aspx

I really want to use these IBC's but I have to admit that I am worried about how much SLS will leach from the plastic..

Quote:
—it's the gradual, cumulative effects of long-term, repeated exposures that are the real concern.

..
I think that one can't take the risk
..
.
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smatthew
PostPosted: Jul 3rd, '14, 20:38 
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Why would any SLS leach from the plastic? HDPE isn't known for absorbing anything.....
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BuiDoi
PostPosted: Jul 4th, '14, 08:01 
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Now. That is the kind of comment that I want to hear..
I just want to be fairly confident that washing REALLY well, will do the job.. along with a soak for a time..

These IBC tanks are a clear god-send for the task... We need to have confidence that they can be made safe...

Any chemists out there who can suggest anything to guarantee neutralization of SLS, JUST TO BE SURE TO BE SURE..
two IBC tanks... two thousand L of water to soak for a time.. don't want to do more than once..

Thanks
..
.
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smatthew
PostPosted: Jul 4th, '14, 09:34 
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Well, SLS is a detergent and is highly soluble in water. And once it's in water, it has 45-95% biodegradation within 24 hours.

Bottom line - if you spray water in and it foams - rinse it more.
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BuiDoi
PostPosted: Jul 4th, '14, 17:09 
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The Gernie has been working like a dragon..

One thing for sure.. YOU KNOW, when there is ANY SLS there - froths like a bought one..

I am pretty confident that they WILL clean up OK, but just a warning to others, do avoid getting ones with heaps of SLS left.. It's been two days trying to get the bulk of the goo out and now the washing..

We wont be wanting for SOAP for a very long time.. 20Ltrs of massively concentrated stuff.. but NOT for body use :naughty:

Thanks for the reassurance..
..
.
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keith
PostPosted: Jul 4th, '14, 22:23 
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i'd use them... clean with detergent, rinse with bleach, nutrilize with vinegar.. then let it sit in the sun for a couple days
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