phendrol
Harmless
Posts: 34
Registered: 13-6-2012
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Mood: sock puppet
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Gradual addition of powdered KMnO4 to the reaction mixture
I'm trying to figure out how to add a certain ammount of KMnO4 to the reaction mixture through about 4 hours. I tried using a plain addition funnel
filled with finely powdered permanganate (just like a sand timer) but it get's stuck.
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Mailinmypocket
International Hazard
Posts: 1351
Registered: 12-5-2011
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Mood: No Mood
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A powder addition funnel with a worm screw to feed the reagent in powder form in slowly... They can be a bit pricey though
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vmelkon
National Hazard
Posts: 669
Registered: 25-11-2011
Location: Canada
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Mood: autoerotic asphyxiation
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Just use a glass rod or plastic rod to push it in.
Signature ==== Is this my youtube page? https://www.youtube.com/watch?v=tA5PYtul5aU
We must attach the electrodes of knowledge to the nipples of ignorance and give a few good jolts.
Yes my evolutionary friends. We are all homos here. |
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gravityzero
Hazard to Self
Posts: 79
Registered: 14-6-2013
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Mood: forgetful
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They are pricey but chemglass versions were all over fleabay a few weeks ago. I was like, what is this contraption? Then it all made sense.
I'm gonna get one at some point. More for looks than anything.
In this scenario a coffee stirrer comes to mind.
[Edited on 12-3-2014 by gravityzero]
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