How to clean a beaker thoroughly
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I have a beaker that got burned while I was cooking starch; it got scorched and no matter how much I scrub it, I can’t get it clean. Does anyone have any good tips?
What’s the price of a beaker? If one has to rack one’s brains trying to find a solution, well, it’s better to just discard it – the cost in that case is lower
Add water to the beaker, heat it with an electric stove, and then clean it; if that doesn’t work, use cleaning powder to scrub it
I don’t think so; anyway, I feel it’s worth it! Of course, it’s best if a good method can be found; even if no suitable method is available, it’s still worthwhile, as you can learn a lot through the process of thinking!
Soak it in chromic acid solution? The results should be good, but special care must be taken during preparation and use to ensure safety. This lotion has strong oxidizing and corrosive properties
Organic matter that has carbonized is difficult to remove; it is recommended that you use a cleaning ball. It’s difficult to remove with ordinary chemical cleaners.
It’s very simple! Place it in a muffle furnace and heat it at 900 degrees for a while; after taking it out, soaking it in dilute hydrochloric acid for a short time is all that’s needed.
If it really can’t be cleaned, just use a new one. Beakers aren’t expensive items – is it really necessary to keep using the same one? You’d better use a cleaning ball to wipe it.
The original poster actually knows that beakers are not valuable; he just wants to know what methods exist to clean them quickly. Using dilute hydrochloric acid should be the correct solution. If I get the chance, I’ll do the verification; I need all these things.
I think the approach should be determined based on the properties of the remaining substances in the beaker
At 900 degrees Celsius in a muffle furnace, the beaker is also ruined
Soak it in the cleaning solution first; otherwise, just replace it with a new one – beakers aren’t expensive anyway
Dude, chromic acid cleaning solution seems toxic (very serious), is it used in the electroplating industry?
I wonder what a beaker would become at 900 degrees
I agree with the view from the fifth floor; for those items that are difficult to clean, we soak them in chromic acid solution. Although it is toxic, it can be reused.
When starch turns black, it means it has been carbonized, and chemical reagents generally cannot remove this substance; only high-temperature burning can turn it into ash. 900 degrees is indeed quite high, as it will cause glass products to melt.
On the top floor, this probably won’t work if cleaned with chromic acid; just soak it in water and scrub it with a pan scrubber
900 degrees? That’s way too much, isn’t it? I remember that the alcohol burner used for bending glass at school could reach around 600 degrees, which was enough to soften the glass so that it could be shaped as desired. Beakers are already difficult to clean after being used to hold starch, and it’s even harder to clean them when they are burned and carbonized. Personally, I think it can’t be cleaned properly; it seems that none of the common chemical reagents can dissolve starch. It’s better to scrap it
Put some water in and heat it on the electric stove; then brushing it with a test tube brush will solve the problem
First soak and wash with hot water, then wash with alcohol and alkali
I think a moderate amount of dilute hydrochloric acid can be used, such as for a 1:1 soaking solution, or heating it up should work as well. I agree with the original poster’s sense of thrift! :victory: