isma_123gold
Member
- Joined
- Aug 6, 2020
- Messages
- 15
Hello. As I'm very interested in learning everything about refining, I have been reading and learning about chemistry in general—although the chemistry branch we need is mostly inorganic, some organic chemistry knowledge can be very helpful in these operations.
Butyl diglyme is an organic compound used as a solvent for chloroauric acid (HAuCl4) in a process for obtaining high purity gold, it's chemical formula is C12H26O3. It can also be called diethylene glycol dibutyl ether.
It's a well known topic in organic chemistry that ethers can form upon prolonged storage explosive organic peroxides (due to light and oxygen from the enviroment), one example is another solvent called diethyl ether that can form diethyl ether peroxide.
And as butyl diglyme is also an ether, it is not a weird assumption that it could form dangerous peroxides upon prolonged exposure. It has been proven by scientific literature that indeed, butyl diglyme has this issue regarding it's storage: Diethylene glycol dibutyl ether
I have a question regarding this: should we store butyl diglyme over sodium hydroxide (as it's done with other ethers) to reduce the peroxide formation?
According to what I have read, a way to test for organic peroxides concentrations in these organic solvents in to make a solution of an iodide salt and glacial acetic acid, take a little bit of the solvent with a pipette and mix it with the testing solution, the darker the color it gives, the bigger is the concentration of peroxides.
What do you think?
Thanks for reading,
- Ismael.
Butyl diglyme is an organic compound used as a solvent for chloroauric acid (HAuCl4) in a process for obtaining high purity gold, it's chemical formula is C12H26O3. It can also be called diethylene glycol dibutyl ether.
It's a well known topic in organic chemistry that ethers can form upon prolonged storage explosive organic peroxides (due to light and oxygen from the enviroment), one example is another solvent called diethyl ether that can form diethyl ether peroxide.
And as butyl diglyme is also an ether, it is not a weird assumption that it could form dangerous peroxides upon prolonged exposure. It has been proven by scientific literature that indeed, butyl diglyme has this issue regarding it's storage: Diethylene glycol dibutyl ether
I have a question regarding this: should we store butyl diglyme over sodium hydroxide (as it's done with other ethers) to reduce the peroxide formation?
According to what I have read, a way to test for organic peroxides concentrations in these organic solvents in to make a solution of an iodide salt and glacial acetic acid, take a little bit of the solvent with a pipette and mix it with the testing solution, the darker the color it gives, the bigger is the concentration of peroxides.
What do you think?
Thanks for reading,
- Ismael.