deadrush - 28-8-2025 at 13:45
https://www.amazon.com/dp/B0DLP916ZX/ref=sspa_mw_detail_0?ie...
With its ceramic diffuser, and separate gas line, i believe this could be outstanding for diffusing gasses into liquids. What do you guys think?
bariumbromate - 28-8-2025 at 14:42
why that one? i use a regular fish bubbler stone for dissolving gases.
unless you want a flow reactor?
Sulaiman - 28-8-2025 at 19:59
looks like someting I would come accross when virtual window shopping,
looks really useful,
if you buy it you will not find an ideal use for it 
but if you do not buy it you will think of many uses for it 
PS the diffuser that you pointed to looks like a well engineered device
but this one looks more 'sciencey' (and presumably has better chemical compatibilities)
https://www.amazon.com/dp/B01NCJ3C65/ref=sspa_mw_detail_1?ie...
but I don't fancy cleaning it.
my problems with air bubblers:
.. contact time, bubbles reach the surface and waste gas unless the liquid depth is significant.
(unless you can accomodate a stirrer as well as the diffuser)
.. deeper submersion requires greater gas pressure,
(may be ok from a bottle, but I do not like operating gas generators at significant pressures)
..plastics and glues of unknown chemical compatibility.
..mine always get blocked after long runs
especially if precipitates are formed, or yeasts are present.
But still useful 
The best I've used so far is this type
https://www.ebay.co.uk/itm/157021404209
but it needs quite a large vessel.
(if the open end faces down the gas fills the cavity then escapes as big bubbles)
Did you notice that the diffuser that you pointed to requires at least 30psi pressure to get those 0.1mm bubbles ?
[Edited on 29-8-2025 by Sulaiman]
jackchem2001 - 29-8-2025 at 16:38
Yes, that would definitely improve mass transfer and if you were trying to dissolve a gas with low solubility in a liquid that would be useful. I
would also use stiring