Timeline for Citric acid rust removal and neutralization
Current License: CC BY-SA 4.0
16 events
| when toggle format | what | by | license | comment | |
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| Nov 2, 2023 at 9:40 | history | reopened | Martin - マーチン♦ | ||
| Nov 2, 2023 at 9:40 | history | edited | Martin - マーチン♦ | CC BY-SA 4.0 |
Cleaned up for reopening
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| S Oct 23, 2023 at 20:23 | review | Reopen votes | |||
| Nov 2, 2023 at 9:40 | |||||
| S Oct 23, 2023 at 20:23 | history | edited | John M | CC BY-SA 4.0 |
Request to unmark as duplicate
Added to review
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| Oct 23, 2023 at 20:14 | vote | accept | John M | ||
| Jul 14, 2022 at 4:25 | history | closed | Buck Thorn♦ | Duplicate of Acetic(vinegar) and citric acid as the rust remover | |
| Jul 14, 2022 at 4:23 | comment | added | Buck Thorn♦ | See also: chemistry.stackexchange.com/questions/68994/… | |
| Jul 14, 2022 at 4:21 | comment | added | Buck Thorn♦ | Links in the comments to the following post might be helpful: chemistry.stackexchange.com/questions/39129/… | |
| Jul 13, 2022 at 21:51 | answer | added | user148298 | timeline score: 2 | |
| Jul 5, 2018 at 18:22 | comment | added | blacksmith37 | I believe the phosphoric acid cleans and leaves some iron phosphate which is a good substrate for paint ( over simplification , I am sure) . The citric just removes oxides ; we used it to clean steel fracture faces for examination. | |
| Jul 5, 2018 at 17:44 | comment | added | John M | @JamesGaidis: it's regular steel. Citric acid has worked well for me so far in removing rust (not just flash or surface rust) from regular steel. I'm aware of other methods (I have in fact tried phosphoric acid too). The question is rather on the neutralization step when citric acid is used, when that is the method of choice. | |
| Jul 5, 2018 at 14:02 | comment | added | James Gaidis | Is the steel stainless steel? Phosphoric acid is the usual anti-rust treatment for regular steel, but citric acid is recommended as a safe non-passivating cleaner for flash rust on stainless steel. (The wire brush must then also be stainless steel.) | |
| Jul 4, 2018 at 16:16 | comment | added | John M | @blacksmith37 Thanks for the reply. My question is on the acid citric treatment, but it's also good to know about the alternatives. So what does 'standard treatment' mean in this context? Does it mean it's better than acid citric, and if so, in which regard? | |
| Jul 4, 2018 at 15:35 | comment | added | blacksmith37 | The standard chemical treatment for rust ( when a good mechanical treatment can not be done ) is phosphoric acid with manganese. These are marketed as "conversion coatings" ; Navel jelly is a common brand. | |
| Jul 4, 2018 at 12:55 | review | First posts | |||
| Jul 4, 2018 at 15:13 | |||||
| Jul 4, 2018 at 12:51 | history | asked | John M | CC BY-SA 4.0 |