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2answers
72 views

Glass joint stuck in flask

I am doing distillation using system of glassware including a flask and a glass joint. Recently I've faced a problem: the glass joint stuck in the flask. I tried to remove it but it broke and hurted ...
0
votes
1answer
23 views

What are the components of a labware setup for short-path distillation?

I've recently become interested in short-path distillation and have found that most kits are in the thousands of dollars. So I thought that I would compile the labware myself. I understand the theory ...
2
votes
0answers
54 views

Is it possible to fractionally distill a compound made up of substances with very similar boiling points?

Let's say I have a solution that is made up of substances that have very similar boiling points, say less than 5 degrees apart. Is it even possible to fractionally distill those substances, say, using ...
2
votes
1answer
103 views

What is this glassware between flask and condenser to collect liquid?

I've been trying to identify this piece of glassware for ages now. I've been combing the internet and can't seem find anything similar. It looks like some kind of adapter/collecter/trap that sits on ...
0
votes
1answer
729 views

How can I remove water vapor from an airstream without a cold trap?

I'm trying to perform vacuum distillation at home with a rotary vane vacuum pump. In order to not ruin my vacuum pump, solvent vapor (in my case, water) should be removed from the air before it ...
4
votes
2answers
3k views

Choosing a vacuum pump for fractional distillation

I have a fractional distillation setup. I would like to purify a small mixture ($\pu{\approx 100-150 mL}$) of high boiling point compounds (between $200$ and $\pu{300^\circ C}$). The one that ...
1
vote
1answer
72 views

opperating a distillation column far from flooding

I know that flooding will ruin the performance of a distillation column. There are many correlations (Eckert, kister, billet, etc.) that will tell you when a column will flood based on your fluid ...
7
votes
1answer
961 views

Vacuum distillation apparatus selection and configuration

I want to assemble a "hobbyist-level" vacuum distillation apparatus for extracting small volumes of "typical" solvents (e.g., water, alcohols, ketones, diols). I already have standard lab glassware ...
2
votes
1answer
449 views

What is this glassware for a distillation apparatus called?

I'm messing around with building a solar distillation apparatus, and one of the parts I think I need looks kind of like the following, except I have no idea what it is called (and thus can't look it ...
2
votes
1answer
1k views

Vacuum-jacketed distilling column

I was looking for some distillation equipment on Sigma Aldrich because I wanted to perform some vacuum distillation, when I came across a vacuum-jacketed distilling column. Now as far as I understood ...