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Anonymous users2024-01-23Your iron sulfate should have been oxidized to iron sulfate (yellow) It seems that you should have no chemical reagents, if you have it, you can try zinc nitrate or hydrogen peroxide with a higher concentration.
The hydrogen peroxide used is 3%, which is far from the requirement) when removed with something at home.
Soak the mark with water first, then add the tea leaves.
At this time, ferrous sulfate will turn from green to black.
This black complex is soluble, carefully wiped off with a steel wool ball, if it has been oxidized into red iron oxide by the air, then it is simple, slightly warm white vinegar can be used (not too hot, the acetic acid in it will volatilize). Remember to wipe it off in time after use and wash it with water.
There is another method that I don't know how it actually works.
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Anonymous users2024-01-22Lather with soap and let it sit in this humid state for one night, wait until the next day, and then use water.
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Anonymous users2024-01-2184 is very useful.
or toilet cleaners.
Hello, you can use banknotes, wash them after you are done, and use them after drying. >>>More
It should be recognized as a work-related injury, but if it is your fault, it is difficult to determine it. >>>More
When A was watering flowers, he accidentally knocked over the flower pot placed on the balcony and fell downstairs, injuring someone, which is a crime of negligence.
Yes, if it's a metal pipe.
There will be corrosion. >>>More
I think if you go and give your paintings to other professional makers of doors and windows, they can do it, no matter what method they use, they can do it well, and there is a way, if you have good skills, you can carve on the wooden door yourself.