2 ms·
Indeed, I instantly recalled the same "blood and sodium hydroxide" stuff from high school chemistry class, and thought of it still being a thing. It doesn't se
by baybal2 5y ago
Indeed, I instantly recalled the same "blood and sodium hydroxide" stuff from high school chemistry class, and thought of it still being a thing.
It doesn't seem to be too expensive, nor too cheap: https://www.alibaba.com/products/sodium_ferrocyanide/CID8020399.html?IndexArea=product_en&pid=PID605_0000_0101 https://www.alibaba.com/products/sodium_ferrocyanide/CID8020...