Topic: Deoxidine?

[Faust]

I have been reading the FAQ's on cleaning chrome and rust removal. There is reference to a "Deoxidine" product. A web search indicates that this is Phospheric acid and seems only to be commericially available in Austrailia. I am assuming that EPA has forbade it, which indicates that it works.

Is this available commercially in the U.S., or any product that makes use of it?  Should I just start shopping for Phospheric acid?

[Bodi]

You probably want phosphoric acid... I can't find much about phospheric and what I can has a few references to H3PO4 which is phosphoric acid.
There are quite a few products you can get. Behr 991 concrete etch is basically phosphoric acid (45%)... Bionaire humidifier cleaning solution is a lot weaker but works pretty well too.
You should be able to get 75% concentrated acid at a farm or greenhouse supply outlet or a chemical supply house. 100% is hard to find and expensive, 75% is the normal industrial strength.
It doesn't (as far as i know) have any explosive use or involvement with illicit drug production so you shouldn't run into any bureaucracy difficulties or have the FBI or DEA breaking your door down should you enquire about or actually buy some.
This is one of the safer acids to work with but don't take stupid chances with it (especially stronger concentrations than the Behr 991), splashes will damage skin and clothing rapidly and destroy your eyes more or less instantly.

[Faust]

You should be able to get 75% concentrated acid at a farm or greenhouse supply outlet or a chemical supply house. 100% is hard to find and expensive, 75% is the normal industrial strength.
It doesn't (as far as i know) have any explosive use or involvement with illicit drug production so you shouldn't run into any bureaucracy difficulties or have the FBI or DEA breaking your door down should you enquire about or actually buy some.
 

I did notice the FAQ's refer to a diluted solution, but exactly how much dilution isn't mentioned. Probably a conflict of art and science,

[Glenn Stauffer]

A couple of sources that I have near at hand...

- Farm stores sell milkstone remover which is phosphoric acid used to clean calcium deposits from milking equipment.  The concentration is sufficient to make a good rust remover; I've used it lots with reasonable success.  TSC Farm Stores list a product called 'Sterosol Milkstone Remover' for $8/gallon.  This is made by Stearns Packaging Corporation.  Their MSDS on the product shows the phosphoric acid concentration to be 42.25%.

- hardware stores often sell something called OSPHO.  75% concentration of phosphoric acid.  I found it at my local True Value hardware store - I forget what I paid, but you can find it online for about $17/gallon or in quarts for about half that.  The company sells direct at http://www.ospho.com/ , but only in 4 gallon cases for $100.

[Raul CB750K1]

I would say, go to your nearest Lowe's or Home Depot and go to the cleaners section. There should be something like Rust Removers with trendy commercial names. Check the formulation out and chances are that the main component is phosphoric acid. At least that's what I did in Spain.


Raul

[Jim Shea]

I thought that you could not remove rust from chrome, once rust is there it has already eaten throught he chrome coating?

[Bob Wessner]

Jim,

The best you can do with chrome that has some rust is reduce the rust. However, don't use anything that contains acid (e.g., phosphoric acid) it is not compatible with chrome. Naval Jelly for instance is a mild phos. acid and it specifically warns against using it on chrome parts. There are probably other methods, a search here would reveal them, but I have used on very fine steel wool and WD-40 to remove and reduce rust on chrome, then clean and polish.

[Jim Shea]

Bob,
I thought so, the best you can do is stop it getting worse, hopefully? or re-chrome it?

[Jim Shea]

Dave,
Nice avatar.
Jim.

[meangenejr]

   Go to your local supermarket and buy a bottle of toilet bowl cleaner called "The Works". It contains Sodium Chloride which will melt rust in a jiff but don't put it on Chrome. When I first noticed its usfullness it had an acid base but has since changed its contents.

[Glenn Stauffer]

Sure it isn't Sodium Bisulfate in the toilet bowl cleaner?

[Jay B]

How about muratic acid? Found some at a paint store cheap, but I didn't know if it would ruin everything it touches.

[Jim Shea]

I think Muratic is almost the same as Hydrochloric, so it is vicious stuff.

[Faust]

I think Muratic is almost the same as Hydrochloric, so it is vicious stuff.

I am pretty sure that Muriotic is diluted hydrochloric. Does a great job on cement.

[meangenejr]

   I'm sorry!! I said Sodium Chloride when I meant to say Hydrogen Chloride in the toilet bowl cleaner called the "Works"

[CB750R]

Don't get Hydrogen Chloride mixed any where near muriatic or phosphoric, acids, unless you're trying to make mustard gas, I do believe if you type rust removal into the search you'll find a lengthy thread on different rust removal products and our successes with them!!

good luck!!

[GraveRobber]

I used a product called "the must for rust" by Krud Kutter brand. It did a good job on my exhaust which was heavly rusted from my 12 year hiatus of bike riding. It says it is for use on chrome. It contains phosphoric acid. Check krudkutter.com . Be carfull of where you clean it. The drippings made my concrete drive sizzle.

[Faust]

I used a product called "the must for rust" by Krud Kutter brand. It did a good job on my exhaust which was heavly rusted from my 12 year hiatus of bike riding. It says it is for use on chrome. It contains phosphoric acid. Check krudkutter.com . Be carfull of where you clean it. The drippings made my concrete drive sizzle.

I have heard of that and tried to buy it. Couldn't find it, although their site lists Home Depot. HD didn't know what I was talking about. I emailed KrudKutter and they told me to go to Home Depot. I gave up.

[GraveRobber]

Krud Kutter makes a cleaner called "Krud Kutter" which is a  prepaint cleaner for house paint. That is probbably what they have at Home Depot. I would look in the paint department myself anyway. The clearks sometimes don't even know what they have. I found "the must for rust" at another local hardware store in the paint department in the same area as the "Navel Jelly" stuff.

[Glenn Stauffer]

I just found out about this product - Evapo-Rust.

More about it here: http://www.orisonmarketing.com/corrosion/evaporust/evapo-rust.html

From the web site: "EVAPO-RUSTTM is non-corrosive to steel and does not harm brass, copper, aluminum, gold, lead, titanium, steel, cast iron, chrome solder points, vinyl, plastic, rubber, silicone, glass, cork, or wood. EVAPO-RUSTTM has an indefinite shelf life* and can be used over and over until it absolutely stops working. On average, one gallon de-rusts up to 300 pounds of light to moderately rusted steel."

Sounds promising.  De-rust a wheel or a fender without ruining the chrome. Not sure I'd trust dipping a tank in it.

$21 a gallon.

[grumburg]

Muratic acid is extremely corrosive. Used for cleaning concrete

[BobbyR]

If you want to find Phosphoric Acid, check the ingredients of Coke Classic. Coke has been reputed to be a rust remover. More legend that fact. I have seen CLR work on chrome.   

[jotor]

Don't get Hydrogen Chloride mixed any where near muriatic or phosphoric, acids, unless you're trying to make mustard gas

When I was in the service in Germany, I was detailed to clean a white ceramic tile floor.  I tried to make the task a little easier by mixing up a bleach and ammonia solution.  Soon left the room when it filled with chlorine gas...............

Back on topic.............................