All Questions
Tagged with distillation everyday-chemistry
7
questions
3
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1
answer
90
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Is there not a strict definition of what naphtha vs petrol represent?
If you search for information about fractional distillation of petroleum, many sources place petrol above naphtha, while others do the reverse.
Is there not a strict definition of what these compounds ...
- 49
0
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0
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How to remove color from bromostyrene/dibromostyrene
Distillation under low heat can remove color (excess bromine) but this is time consuming and there is a danger of bromostyrene polymerization even with added TBC.
In aqueous, sodium thiosulphate can ...
- 17
0
votes
1
answer
320
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Why does brandy have a higher methanol-to-ethanol ratio than beer, despite the distillation?
From my googling, beer tends to contain around 16mg/L of methanol. While for brandy, typical methanol content is around 1000mg/L (give or take a factor of 3, depending) The distillation that brandy ...
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6
votes
2
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Alcohol (ethanol) distillation: mystery congener
I regularly home-distil small amounts of potable alcohol (ethanol), mainly from fermented sugar(s) solutions (the 'wash').
My still is a box standard, $4.5\mathrm{L}$ electrically heated (safety!), ...
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19
votes
5
answers
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Un-denaturing industrial alcohol
I have a question regarding the denaturation of industrial ethanol with methanol to discourage its consumption.
The boiling point of methanol is 64.7 °C, while the boiling point of ethanol is 78.37 °...
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2
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How to purify water with activated carbon?
If I am not mistaken, distilling water does not remove all possible impurities. Chemicals with boiling points less than $100\ \mathrm{^\circ C}$ will be transferred as well. Does the usual tap water ...
- 229
5
votes
1
answer
292
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Drying a distillate liquid
So I'm carrying out the distillation of some essential oil and I have to remove the water content in it. The usual method is using diethyl ether but I'm looking for a greener method.
What can I do?
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