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Letter 395 Alkaline Rust Remover Wanted---- I need a formulation for a superior alkaline rust remover to remove rust from carbon steel. Steve Milan
We once used to use an alkaline product called Oakite. I'm sorry I don't remember the source. Sandro Pisani
---- Actually, Sandro, Oakite is the name of a supplier in Berkeley Heights, New Jersey, USA (a division of Chemetall). Thanks. But it sounds to me like Mr. Milan is looking for a generic formula.
from The Chemical
Formulary, c. 1940, steel tank, 180 degrees F acid pickling solution It's these kinds of solutions which make me glad that there are now proprietary solutions around.
--- Considering the complexity of a really good rust remover, why not go with a commercially prepared product. The main components are going to be lye and sodium glutamate. Numerous other materials tailor it to your need and water. Generic formulas can be found in the AMS book on cleaning. James Watts
There are two ways you can go. One is to buy a proprietary compound from a specialty chemical supplier. You will pay more but you will get technical support and laboratory backup. If you want to make your own product, you can mix sodium hydroxide (or potassium for better rinsing or a combination) along with a couple percent of EDTA chelant (or Sodium Gluconate). You want to use the product hot 160+ at anywhere between 8- 16 oz gallon. Dan Zinman
My advice to you is not to try a generic formula, it is the small additives that suppliers add which makes all the difference. Go to a supplier!!
You have to really careful with chelants because they prevent your water treatment system from removing some metal ions. Dave Fairbourn
For a summary of all the former answers you can use an exact formula from the military specification Mil-C-14460 [link is to spec at TechStreet] is the mil you need and you will have all the answers you need . (Use the non cyanide version) Yehuda Blau
Try a solution of about 10% by wt. sodium hydroxide and 2 to 5% triethanolamine. Soak article in heated solution a few minutes for light rust. Rinse with passivating solution to prevent flash rust. James Chunn
- We are trying to develop an oil based rust remover and protective coating for metals. kindly help us in doing formulation for the above mentioned product. Thanking You, Yours faithfully, Sreenivasan
. i need a rust/scale remover for sheet metal fuel tanks that can be used cold or hot and bought locally.. i found a product called kreem tank liner that has a good rust remover but i can't get it locally and don't know the name of the acid that they use.. any ideas?? thanks jim king jim king
+++++ The most easily used material is called
Naval Jelly [link is to product info at Amazon]. BE SURE TO
READ THE DIRECTIONS!! Doug Smith
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