Learn How to Make a 10% Mineral Oil Emulsion Without Microfluidic Channels

[phytoplankton]

Without using microfluidic channels how to prepare a at least 10% (by volume)mineral oil (dispersed)in water emulsion?

 

[Quantum Defect]

Without using microfluidic channels how to prepare a at least 10% (by volume)mineral oil (dispersed)in water emulsion?

Can you add a surfactant or emulsifier?

 

[phytoplankton]

Can you add a surfactant or emulsifier?

yeah, like SDS(sodium dodexyl sulfate) i prepared a recipe for the emulsion but it is less than 1%.

 

[Quantum Defect]

yeah, like SDS(sodium dodexyl sulfate) i prepared a recipe for the emulsion but it is less than 1%.

Have you tried sonicating?

 

[phytoplankton]

Have you tried sonicating?

no not yet. i am not sure how sonication work to thicken the emulsion.

 

[Quantum Defect]

no not yet. i am not sure how sonication work to thicken the emulsion.

Vigorously mixing some oils with water and emulsifier can get you a suspension of very tiny oil droplets that are kinetically stable. This is how you make mayonnaise (albeit without the sonicator).

one egg yolk, dash of lemon juice, dot of mustard ==> slowly add 1 c. olive oil while beating ==> voila! mayonnaise

The surfactants/emulsifiers are coming from the egg and mustard (lecithin)

http://en.wikipedia.org/wiki/Lecithin

 

[Borek]

one egg yolk, dash of lemon juice, dot of mustard ==> slowly add 1 c. olive oil while beating ==> voila! mayonnaise

While I agree in general (I made mayonnaise many time myself), sometimes it doesn't work. There was an oil sold here (actually some German brand) that I couldn't turn into emulsion no matter how hard I tried. No idea why.