Natural school that is gentle to the skin I would like to try to make the 10 yen coin that became black as rusted and rained in rain for over 5 years using baking soda and citric acid popular as a cleaning item.
Weak alkaline sodium bicarbonate and acidic citric acid, which can make the ten-yen beads of rainy five-year objects shiny! What? Or maybe they can not compete against the five-year rust (rust)! What?
First of all, we made sodium bicarbonate paste / citric acid pace with tableware detergent and polished it with toothbrush and mini router.
* Baking soda and citric acid can be purchased at 100 (100 shops).
※ Weak alkaline metal (copper · aluminum · brass)
* If citric acid does not exist, vinegar can also be substituted.
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6 сен 2024