Sciencemadness Discussion Board
Not logged in [Login ]
Go To Bottom

Printable Version  
Author: Subject: Is this small vacuum pump good for buchner funnels?
Cou
International Hazard
*****




Posts: 958
Registered: 16-5-2013
Member Is Offline

Mood: Mad Scientist

[*] posted on 6-11-2019 at 15:05
Is this small vacuum pump good for buchner funnels?


https://www.amazon.com/gp/product/B00DYA21PU/ref=ppx_yo_dt_b...

will it be powerful enough for vacuum filtration, until i can get a more expensive vacuum pump? it's really tiny, fits in your hand.

[Edited on 6-11-2019 by Cou]
View user's profile View All Posts By User
karlos┬│
International Hazard
*****




Posts: 1517
Registered: 10-1-2011
Location: yes!
Member Is Offline

Mood: oxazolidinic 8)

[*] posted on 6-11-2019 at 16:41


Yes it is, I have a very similar one I use for vacuum filtration and it works fine for this purpose.
View user's profile View All Posts By User
markx
International Hazard
*****




Posts: 643
Registered: 7-8-2003
Location: Northern kingdom
Member Is Offline

Mood: Very Jolly

[*] posted on 6-11-2019 at 23:39


Quote: Originally posted by Cou  
https://www.amazon.com/gp/product/B00DYA21PU/ref=ppx_yo_dt_b...

will it be powerful enough for vacuum filtration, until i can get a more expensive vacuum pump? it's really tiny, fits in your hand.

[Edited on 6-11-2019 by Cou]


It will do the job just fine. For filtration one does not really need a strong vacuum...a tiny bit will work wonders. You could couple it with a variable DC voltage module to tune the speed. It does not really have to run full blast. Especially on long filtrations. Also you could power it with a rechargeable lithium cell. Makes for a very compact mobile and "wireless" unit that can be used in locations where mains power is unavailable or complicated to use.




Exact science is a figment of imagination.......
View user's profile View All Posts By User
vibbzlab
Hazard to Others
***




Posts: 227
Registered: 6-11-2019
Member Is Offline

Mood: Always curious

[*] posted on 7-11-2019 at 02:26


I had went to a shop where they sell aquarium items for ornamental fish. Can I use that item in place of vaccum pump?
View user's profile Visit user's homepage View All Posts By User
draculic acid69
International Hazard
*****




Posts: 1325
Registered: 2-8-2018
Member Is Offline


[*] posted on 7-11-2019 at 03:18


No. It's a different pump type.
View user's profile View All Posts By User
vibbzlab
Hazard to Others
***




Posts: 227
Registered: 6-11-2019
Member Is Offline

Mood: Always curious

[*] posted on 7-11-2019 at 04:10


Well for that thing to pump out air there shkutbe somewhere were it takes air inside right ? XD
View user's profile Visit user's homepage View All Posts By User
CharlieA
International Hazard
*****




Posts: 618
Registered: 11-8-2015
Location: Missouri, USA
Member Is Offline

Mood: No Mood

[*] posted on 7-11-2019 at 16:37


@Cou: many people use that type of pump. But, you can find it or similar on ebay for less, I think.
View user's profile View All Posts By User
draculic acid69
International Hazard
*****




Posts: 1325
Registered: 2-8-2018
Member Is Offline


[*] posted on 8-11-2019 at 01:44


$6 ones on eBay are the same thing but 1/3rd the price.
View user's profile View All Posts By User
Schmiddy
Harmless
*




Posts: 31
Registered: 6-11-2019
Member Is Offline


[*] posted on 8-11-2019 at 22:55


Quote: Originally posted by vibbzlab  
I had went to a shop where they sell aquarium items for ornamental fish. Can I use that item in place of vaccum pump?



I tried this as I have the exact pump in the instructable and it does in fact work and is reversible too.

https://www.instructables.com/id/Vacuum-Pump-from-Aquarium-A...

View user's profile View All Posts By User
vibbzlab
Hazard to Others
***




Posts: 227
Registered: 6-11-2019
Member Is Offline

Mood: Always curious

[*] posted on 9-11-2019 at 00:26


Thank you so much for that. I will need more information from your .please message me




Amateur chemist. Doctor by profession
Have a small cute home chemistry lab.


Please do check out my lab in YouTube link below

This is my YouTube channel
View user's profile Visit user's homepage View All Posts By User
Mateo_swe
National Hazard
****




Posts: 359
Registered: 24-8-2019
Location: Within EU
Member Is Offline


[*] posted on 1-12-2019 at 10:56


I think those small cheap vacuum pumps are used by some when corrosive vapors are a problem and might damage an expensive vacuum pump.
Of cause these pumps also take damage but they are so cheap they can be easily and cheaply replaced.
I dont think they have very good vacuum but at least usable vacuum for filtration and some not so demanding destillations.
I wouldn┬┤t count on them working for very long.
Another option would be to buy a waterpump and a aspirator, many choose this option as it is cheap and works pretty good.
View user's profile View All Posts By User
G-Coupled
National Hazard
****




Posts: 287
Registered: 9-3-2017
Member Is Offline

Mood: Slightly triturated

[*] posted on 1-12-2019 at 13:45


Those 20 dollar Amazon pumps sound pretty good from some of the reviews.


Quote:

January 5, 2018

Verified Purchase

Okay, so it's not an industrial vacuum pump, but I needed a portable vacuum pump to help wash, dry and purify chemical products on filter paper through a 100 mL Buchner funnel and a 1L Erlenmeyer flask, and this vacuum pump is perfect for the job.

Hook it up with an in-line vacuum filter and it also works well with Nalgene 0.22 micron bottle top filters to sterilize oil


View user's profile View All Posts By User
Cou
International Hazard
*****




Posts: 958
Registered: 16-5-2013
Member Is Offline

Mood: Mad Scientist

[*] posted on 1-12-2019 at 20:03


I confirm that it's good for buchner funnels, but doesn't lower air pressure enough for vacuum distillation.
View user's profile View All Posts By User
Sulaiman
International Hazard
*****




Posts: 3231
Registered: 8-2-2015
Location: UK ... on extended Holiday in Malaysia
Member Is Offline


[*] posted on 1-12-2019 at 20:09


Quote: Originally posted by Cou  
https://www.amazon.com/gp/product/B00DYA21PU/ref=ppx_yo_dt_b...

will it be powerful enough for vacuum filtration, until i can get a more expensive vacuum pump? it's really tiny, fits in your hand.


I've been using a similar small pump for four years with a 90mm dia. Buchner funnel,
originally -80 kPa, but now -75 kPa or even -70 kPa when it needs a clean and oiling.
More than enough vacuum for filtering, you will not need to upgrade it.

I suggest that you buy extra tubing to connect from the exhaust port to somewhere outside;
- any noxious gasses will be safely removed
- the noise level will be lower

Before you buy a Buchner funnel research the cost and availability of filter papers,
I chose 90mm dia. because at the time that was the common size for cheap Chinese papers,
and they are still relatively cheap.

Buy some slow/fine/(equivalent to Whatman #3) and some fast/coarse/(equivalent to Whatman #1) papers as both are useful.

Buchner funnel filtering problems;
- top-heavy, I usually clamp my filter flask
- clamping also prevents the vaccum tubing from causing trouble
- the seal between the funnel and the flask, (I use a piece of silicone rubber sheet with a hole in it)
- often we need to filter a quantity of liquid greater than the filter flask capacity,
so we need an easy way to allow air in to to the flask to allow removal of the funnel,
to enable emptying (or changing) of the filter flask.
for me, the simplest is a not-too-tight connection of the vaccum tubing to the side arm of the flask.




CAUTION : Hobby Chemist, not Professional or even Amateur
View user's profile View All Posts By User
draculic acid69
International Hazard
*****




Posts: 1325
Registered: 2-8-2018
Member Is Offline


[*] posted on 1-12-2019 at 21:29


No matter where I look fritted glass funnels from China are the cheapest form of Buchner and CANNOT be beaten.ive been looking all over the web for a Buchner glass ceramic or plastic all cost more than fritted glass now.try and prove me wrong.
View user's profile View All Posts By User
Sulaiman
International Hazard
*****




Posts: 3231
Registered: 8-2-2015
Location: UK ... on extended Holiday in Malaysia
Member Is Offline


[*] posted on 1-12-2019 at 22:35


Quote: Originally posted by draculic acid69  
now.try and prove me wrong.

Not that it matters ... https://www.ebay.co.uk/sch/i.html?_from=R40&_nkw=buchner...




CAUTION : Hobby Chemist, not Professional or even Amateur
View user's profile View All Posts By User
G-Coupled
National Hazard
****




Posts: 287
Registered: 9-3-2017
Member Is Offline

Mood: Slightly triturated

[*] posted on 2-12-2019 at 06:25


Quote: Originally posted by draculic acid69  
No matter where I look fritted glass funnels from China are the cheapest form of Buchner and CANNOT be beaten.ive been looking all over the web for a Buchner glass ceramic or plastic all cost more than fritted glass now.try and prove me wrong.


Wow - they are cheap. Nice one. :cool:

[Edited on 2-12-2019 by G-Coupled]
View user's profile View All Posts By User

  Go To Top