Filtering finished oils

[Chickenlegs]

Would these be acceptable for filtering about 5ml at a time? I know they need to be sterile and ptfe, but do they also need to be “hydrophobic

Looks ok to me, but 13mm will slow things down, 25mm would be preferable, with just slightly more oil lost to the filter.

do they need to be hydrophobic ?

 

[Ghoul]

Would these be acceptable for filtering about 5ml at a time? I know they need to be sterile and ptfe, but do they also need to be “hydrophobic

do they need to be hydrophobic ?

It doesn't matter for oils. Either hydrophobic or hydrophilic will work.

Peptides must be hydrophilic(PES membrane only).

 

[Chickenlegs]

I think I’ll give these a try perhaps.

 

[Dirthand]

View attachment 314953I think I’ll give these a try perhaps.

Those will do

 

[bigtom343]

It doesn't matter for oils. Either hydrophobic or hydrophilic will work.

Peptides must be hydrophilic(PES membrane only).

Dude are you for real? Putting a hydrophilic filter through some oil is going to cause a blowout. Practice some common sense and harm reduction and only use hydrophobic filters with oils.

 

[Sampei]

Dude are you for real? Putting a hydrophilic filter through some oil is going to cause a blowout. Practice some common sense and harm reduction and only use hydrophobic filters with oils.

This is bullshit lol. You can use both to filter Oil

 

[bigtom343]

This is bullshit lol. You can use both to filter Oil

Good luck to you sir!

 

[Sampei]

Dude are you for real? Putting a hydrophilic filter through some oil is going to cause a blowout. Practice some common sense and harm reduction and only use hydrophobic filters with oils.

@narta @Spaceman Spiff

 

[Spaceman Spiff]

Practice some common sense and harm reduction and only use hydrophobic filters with oils

Pretty sure it's constant ongoing battle on what to use.

Have used all of hydrophilic. No issues at all

 

[Ghoul]

Dude are you for real? Putting a hydrophilic filter through some oil is going to cause a blowout. Practice some common sense and harm reduction and only use hydrophobic filters with oils.

He said he knows they have to be PTFE.

Hydrophilic PTFE filters are called "Universal", because they can filter water based or oil solutions.

https://www.sigmaaldrich.com/US/en/technical-documents/technical-article/analytical-chemistry/filtration/millexphilic-ptfe

 

[Ateam2023]

Good luck to you sir!

ive used both , notice the difference in filter type,, up to 40 ml of oil per filter at a time (probably could go higher) no flow problems from either ,,,

 

[Ghoul]

ive used both , notice the difference in filter type,, up to 40 ml of oil per filter at a time (probably could go higher) no flow problems from either ,,, View attachment 314983

I think, but I'm not certain, only PTFE hydrophilic filters work with oils, other hydrophilic filters are oleophobic, not allowing oil to pass.

PTFE filters start out hydrophobic, some treatment makes them hydrophilic, and then they're able to filter water and oils becoming "universal".

 

[Ateam2023]

I think, but I'm not certain, only PTFE hydrophilic filters work with oils, other hydrophilic filters are oleophobic, not allowing oil to pass.

PTFE filters start out hydrophobic, some treatment makes them hydrophilic, and then they're able to filter water and oils becoming "universal".

i don't use them to filter water , i only fliter mostly mct oil based products,,

 

[mcap]

What about PVDF filters? Can they be used to filter the oil to the same effect?

 

[Dirthand]

What about PVDF filters? Can they be used to filter the oil to the same effect?

I wouldn't....... ptfe or nylon

 

[mcap]

I wouldn't....... ptfe or nylon

Can you elaborate why you wouldn't?

 

[Dirthand]

Can you elaborate why you wouldn't?

Ni, I'm not gonna write you a fucking research paper on why I gave you some sound advice. Take it or don't. Or research membrane compatibility charts..

 

[readalot]

you a fycking research paper

 

[mcap]

Ni, I'm not gonna write you a fucking research paper on why I gave you some sound advice. Take it or don't. Or research membrane compatibility charts..

Nobody asked for a research paper. You are not Ghoul.

 

[Dirthand]

your right "Jesus Christ"
@Ghoul these fuckers are starting to mistake me for you. Come over here hold this guys hand and write him a 600 word essay on filter membrane compatibility.
save me