Register to reply

Choosing filter paper to extract an organic compound from HCl using gr

by kl055
Tags: choosing, extract, filter, organic, paper
Share this thread:
kl055
#1
May25-14, 02:48 AM
P: 26
Do I need to worry about the pore size, or can I just assume that any/all paper filter will remove the organic compound while letting the smaller HCl molecules through?

The molecular weight of the organic compound is listed as "240"
Phys.Org News Partner Chemistry news on Phys.org
New molecule puts scientists a step closer to understanding hydrogen storage
Chemists develop new formulation for the generation of green flames
Four billion-year-old chemistry in cells today
Yanick
#2
May25-14, 12:26 PM
P: 380
I don't know that plain old filter paper would work on a soluble component of a mixture. Typically if you want to filter something in solution, you need to use ultrafiltration techniques (which have limits to how small the pores can get AFAIK) or find a way to separate the unwanted component into a separate phase (for example precipitation).
kl055
#3
May25-14, 02:49 PM
P: 26
If the solute is ~100um uniform in size (solid outside of the HCl), shouldn't paper filters work? Would be sufficient to use a pore size of 50um, or should I use a smaller size?

Yanick
#4
May25-14, 06:22 PM
P: 380
Choosing filter paper to extract an organic compound from HCl using gr

Sounds fine to me. If it were me, and I were working on an tested protocol, I'd check (qualitatively or quantitatively) the filtrate to get an idea of how well it worked.
kl055
#5
May25-14, 07:40 PM
P: 26
Thanks.

Is normal filter paper sufficient to resist HCl or should I be buying special "hardened" and/or "ashless" filters?
Yanick
#6
May25-14, 08:26 PM
P: 380
I'd imagine it depends on the concentration of HCl. Erring on the side if caution, you're best bet is likely to check with the manufacturer.
kl055
#7
May25-14, 08:36 PM
P: 26
Thanks, I will do that.


Register to reply

Related Discussions
How can I extract specific organic components from plants? Chemistry 17
Synthesis of an organic compound Biology, Chemistry & Other Homework 0
Polarity of organic compound Chemistry 8
Please help me name the organic compound Biology, Chemistry & Other Homework 2
Organic compound Biology, Chemistry & Other Homework 5