Electronics > Repair
Ultrasonic cleaner size: 10L vs 6L
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jpanhalt:
I don't know what your link is selling at that outrageous price.  What we called petroleum ether light boils at 60° to 70°C.  Hexane boils at the higher end of that range; however, it is a mixture.  When I was in school, we did not have UV grade hexane.  We started with technical grade 60-70 and purified it to get a UV cutoff of about 220 nm, which was sufficient for our needs.  Its volatility is hardly like diethyl ether (or methylene chloride).   
coppercone2:
I don;'t see the point of calling it ether, its usually used when you would wanna use ether for its volatile properties but without moisture restrictions without going to butane

I would call that naphta. The beauty of the PE is that it evaporates your sample really quick (i.e. dirt oil extraction for testing for pollutants), which is very useful for a analytical lab that is tasked with testing a sample. It is extremely non polar.

If it has a high BP then its not very ether like  ???


Often used if you find oil on dirt and it needs to be tested for environmental reasons.

That one i linked is 30-40C, ethyl ether is 35c, its real close, the lab procedures behave largely the same for extractions with greater safety margin and no moisture controls!

And since the boiling point is so low, you know your not adding anything that will be hard to extract from your extracted oil before it gets tested for say PCB or other additives. A higher BP thing might linger in the tiny amount of oil you extracted then be a pain to remove later without disturbing the mixture thermally. Butane would work here too but its hard to work with for normal lab people, but if you had a special contained machine it would be better probobly.
SteveThackery:
I bought my most recent petroleum ether from eBay, and the supplier offered it with a range of different boiling points.

I found that the lower boiling point products were not obviously any more effective as a solvent for solidified old oil than the higher boiling point versions, so I now use one rated at 100 - 120 Celsius boiling point.

The BP ranges are: 40 - 60, 60 - 80, 80 - 100 and 100 - 120 Celsius.

jpanhalt:
100° to 120°C is the octanes range.  I utilized isooctane (bp 99°) for a tricky crystallization of an unexpected aromatic hydrocarbon (identified as tetrabenzanthracene, C30H18) from benzene.  That was in a former life.  I like the sweet smell of isooctane.  Your pet ether probably doesn't smell so good. 

Are we far enough OT yet?
coppercone2:
the other benefits of the PE is that its a mixture of various things, usually solvent mixtures work better for unknown samples because you never know what has the best solubility, regardless of the BP range, you get a bundle of solvents
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