Molasses vs. Rust

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Hello all, I am currently doing research on the process of rust inhibition and removal using molasses but finding info is tedious (the process is slow as...........) :) Anyways, does anyone happen to know the exact science and chemical processes. Any info is appreciated. I will also be posting the findings of my experiment on this site. I have a hold of two 1920 Ford Model T pistons that are caked in rust. These are going to be submerged in molasses for quite a while. I will be using molasses to de-rust the masses! (I know there is a pun!) Cheers!
 
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molasses? :DD
 
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yes. Molasses indeed. In short, can anyone elaborate upon what (ex. citric acid, etc.) is produced when molasses ferments? Thanks!
 

Borek

Mentor
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first search:
Have you tried to search for "rust removal with molasses"? There are definitely people reporting it as working. What is the chemistry behind I have no idea, but it is an organic mixture that can contain some chelating agents, so I would not reject it just because it sounds funny.

An important thing to consider - I would keep parts and the solution it in a sealed container, to reduce amount of oxygen dissolving.
 

Quantum Defect

Homework Helper
Gold Member
496
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Some sugars are pretty good reducing species. Maybe you are reducing the oxides at the metal surface?

The Tollens test is a famous old reaction that used to be used to test for the presence of reducing sugars.

http://en.wikipedia.org/wiki/Tollens'_reagent

You can make a lovely mirror with the silver reagent and a reducing agent:

 

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