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can I use a flask without lid? Options
 
meino
#1 Posted : 6/20/2022 3:33:07 AM
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Hello,
so I got a 1L borosilikat erlenmeyer flask for dirt cheap, unfortunately it dont came with a lid. Can I still use it, how? Im to paranoid to use a wine bottle, or is it safe?
 

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downwardsfromzero
#2 Posted : 6/20/2022 8:59:57 PM

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Hello and welcome.

You could always buy a silicone (Silikon) rubber bung if it concerns you. Otherwise just ensure that you proceed with whatever purpose without inverting the flask.

Wine bottles will be at risk of breakage if subjected to heating, whereas borosilicate flasks are more resistant both to thermal shock and caustic alkalies. The latter can still cause damage over prolonged periods, however.

Without a bung, your flask will be a case of "stirred, not shaken" Pleased




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meino
#3 Posted : 6/21/2022 11:22:02 PM
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Thank You,
which style is better if I need to stir?
Narrow or wide neck?
https://www.hobbybrauerv...n-weithals-1000-ml.webp

These are the styles I can get (all Borosilicate Glass):

elernmeyer flask 1000ml narrow neck without lid
elernmeyer flask 1000ml wide neck without lid
bottle 1000ml with PP lid https://www.amazon.de/-/...aboratory/dp/B00LHWYLTG
(but is PP safe? Is the neck to wide?)
 
fink
#4 Posted : 6/21/2022 11:34:41 PM

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I had what the seller claimed was a silicon bung and it seemed to be interacting with the high ph soup. After a bit of searching I managed to find cork bungs and they seem better.
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Voidmatrix
#5 Posted : 6/22/2022 2:29:54 AM

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meino wrote:
Thank You,
which style is better if I need to stir?
Narrow or wide neck?
https://www.hobbybrauerv...n-weithals-1000-ml.webp

These are the styles I can get (all Borosilicate Glass):

elernmeyer flask 1000ml narrow neck without lid
elernmeyer flask 1000ml wide neck without lid
bottle 1000ml with PP lid https://www.amazon.de/-/...aboratory/dp/B00LHWYLTG
(but is PP safe? Is the neck to wide?)


Since you won't be able to stir without some kind of cap, bung, or other covering, you'll likely want a wider mouth so that you can a more agitating stir process.

Though if you plan to mix by just swirling the flask, the narrow neck will probably be more suitable in preventing spillage from the top.

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meino
#6 Posted : 6/22/2022 2:35:36 AM
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Is it okay to take a long stainless steel spoon and stir?
 
Voidmatrix
#7 Posted : 6/22/2022 2:39:16 AM

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meino wrote:
Is it okay to take a long stainless steel spoon and stir?


Yup! That should be fine Smile

One love
What if the "truth" is: the "truth" is indescernible/unknowable? Then the closest we get is through being true to and with ourselves.


Know thyself, nothing in excess, certainty brings insanity- Delphic Maxims

DMT always has something new to show you Twisted Evil

Question everything... including questioning everything... There's so much I could be wrong about and have no idea...
All posts and supposed experiences are from an imaginary interdimensional being. This being has the proclivity and compulsion for delving in depths it shouldn't. Posts should be taken with a grain of salt. 👽
 
 
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