All Questions
Tagged with extraction solvents
18
questions
3
votes
1
answer
310
views
Cannabigerolic acid (CBGA) and cannabidiolic acid (CBDA): Solubility in ethanol
How much CBGA and CBDA can be dissolved in a given amount of ethanol at room temperature? I did a bit of research but could not find any source on solubility of these substances in ethanol.
For ...
- 33
0
votes
2
answers
102
views
Why is oil solubility improved in solvents at higher temperatures?
This is in the case of extracting plant oil using a solvent extraction method for the purposes of biodiesel production.
In a paper, it is stated that increased oil yield may be due to the 'increase in ...
3
votes
0
answers
45
views
In solvent extraction from plant cells, what is the static organic solvent film formed?
I am researching the mechanisms behind solvent extraction of oil from microalgal cells, and it is stated in one paper that in the process of transferring the lipid out of the cell, the solvent-lipid ...
1
vote
0
answers
28
views
Are there any tests which distinguish between triglycerides and polar lipids/impurities that can be conducted in a high school setting?
I am currently writing a research essay about using a mixed polar (methanol) and non-polar (heptane) solvent system to extract oil from mango seed kernels. One of the difficulties of using polar ...
0
votes
2
answers
1k
views
Choise of solvent for extraction
In the synthesis of (S)-Diphenyl(pyrrolidine-2yl)methanol, I need to extract the product using an organic solvent and water. Which organic solvent is the most suitable in this case?
Ethyl acetate: I ...
- 138
6
votes
1
answer
292
views
Decarboxylation of THCA during CO2 Extraction of Cannabis
We have a strange problem. We are performing CO2 extraction on cannabis and we are seeing considerable decarboxylation of THCA to THC.
We have high quality temperature sensors at the heat exchangers, ...
- 61
1
vote
0
answers
38
views
How many times should I run a solvent extration experiment through?
For advanced higher chemistry project, I am extracting cinnamaldehyde from cinnamon via first steam distillation and then solvent extraction using hexane. I'll be adding sodium chloride to the water/...
3
votes
2
answers
2k
views
What is the principle of “scrubbing” in liquid extraction or solvent extraction?
There are many steps in solvent extraction:
Extraction
Scrubbing
Back extraction
I understand the 1st and the 3rd.
What is the principle of scrubbing?
Is it just washing the organic phase?
How ...
- 107
1
vote
0
answers
173
views
How to determine crown ether cavity size? [closed]
I want to determine the cavity radius/ dia of crown ether. Which technique should I follow?
- 107
1
vote
1
answer
1k
views
How to choose alcohol solvent for organic extraction?
Assuming I have an organic substance that is known to be "soluble in alcohol" (e.g. capsaicin) I want to extract, which alcohol should/can I use? I know that both ethanol and methanol are commonly ...
user38808
-2
votes
1
answer
14k
views
What is the best way to evaporate toluene? [closed]
I decided to use toulene as my non-polar solvent because it's easy to get it. My question is, what is the best way to evaporate the toluene from the soaked organic material?
- 11
1
vote
1
answer
1k
views
Can I use gasoline as a non-polar solvent?
I was wondering if I can use gasoline for a non-polar extraction of organic substances instead of prescribed diethyl ether, which is a bit hard to get in my country. If not, are there any products ...
- 11
2
votes
1
answer
2k
views
How to extract thymol from oregano leaves?
This is my second graders in highschool project of science report.
I try to a make natural hand sanitizer using thymol from oregano leaves as the antiseptic ingredient instead of alcohol.
I want ...
- 29
1
vote
1
answer
916
views
Can ethyl acetate isolate cinnamaldehyde from cinnamon oil?
I recently watched a video on extracting cinnamaldehyde from cinnamon using dichloromethane as a solvent. I would like to attempt the process. However, I would prefer not to use haloalkanes because ...
- 521
0
votes
0
answers
101
views
Remove aceton from denatured alcohol
I have bought a bottle of denatured alcohol. On the web I've found these solutions typically contain the following:
$85\%$ ethanol
$10\%$ water
$3\%$ methanol
$1\%$ aceton
$1\%$ pyridine
I would ...
- 343