For questions about extracting elements from compounds (metals from ores, et cetera)
2
votes
1answer
58 views
Chemical methods to extract Oxygen from Rust
Let's say I have a large quantity of rust and want to extract the oxygen from it in a way that allows me to collect the oxygen in a container.
What chemical process can I use to do this and what ...
6
votes
1answer
49 views
Can we process waste just by decomposing it to homogenous mass and extracting the elements from it?
I. e., what if we just burn trash completely or dissolve it in acid, get the resulting paste and extract pure chemical elements out of it by applying some physics and/or chemistry to it until no more ...
1
vote
1answer
34 views
Metal extraction by pyrolysis
There is a process named solar furnace pyrolysis which is used to reduce the oxides of various elements by concentrating solar energy. Oxygen is liberated but an oxide slag is left.
$\ce{SiO2 -> ...
1
vote
0answers
41 views
Help Identifying Chemicals
I was trying to isolate elemental bismuth from pepto bismal (bismuth subsalicylate) using the process seen here but after I added the HCl, instead of getting a pink foamy substance I got a white ...
0
votes
2answers
95 views
0
votes
1answer
207 views
How to extract pure caffeine from tablets?
I have some caffeine tablets and I want to extract the pure caffeine from the rest of the ingredients (caffeine 200 mg. Inactive ingredients in order are corn starch, dextrose, dicalcium phosphate, ...
7
votes
2answers
497 views
67 failures at extracting acetaminophen from Excedrin(R)
I have adapted the lab experiment described in this J. Chem. Ed. article for the organic chemistry lab course I teach. In the past year, the first year of implementation, I have had 67 failures (100% ...
