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Removing oil residues: ethanol vs. isopropanol




If the alcohol doesn't do the trick, and you can access these parts well enough to scrub th ...
15-7-2019 at 14:18
by: SWIM
How to make liquid spheres coalesce faster?
[rquote=617185&tid=151728&author=happyfooddance]Also, relative density.[/rquote]

Maybe es ...
9-7-2019 at 14:58
by: SWIM
Which number you like more: 1.99 vs 2.01?
I really prefer 127/64ths.

Decimals bum me out.

(For you non-Americans out there: That means t ...
9-7-2019 at 14:54
by: SWIM
Methamphetamine
Sounds to me like a polar aprotic solvent would be more appropriate here.

And how about just thro ...
5-7-2019 at 18:27
by: SWIM
How to dissolve wood?
I'd try 10% bleach for a few days of soaking.

You could put the dry flask in an oven at 200 to 25 ...
1-7-2019 at 14:46
by: SWIM
What size filter paper for 10cm buchner?
Some espresso pots have stainless steel Buchner funnels in them.

Most have aluminum.

You can ...
28-6-2019 at 14:09
by: SWIM
What size filter paper for 10cm buchner?
I found some 10 cm filter paper discs on American Ebay pretty fast,... but the prices.

9 cm discs ...
27-6-2019 at 15:14
by: SWIM
Vacuum aspirator using DMSO
I like the vacuum pump oil suggestion, but there's always Lucas DOT 4 brake fluid too.

Vapor pres ...
25-6-2019 at 18:49
by: SWIM
latest glassware purchase
Today a falling film distillation head.

The last coil is missing from the heated 'finger' but I g ...
25-6-2019 at 14:31
by: SWIM
photochemical reactor
Picked up an Ace 250 ml photochemical reactor.

The light well is quartz, and jacketed for cooling ...
24-6-2019 at 16:35
by: SWIM
Safe cracking
The internet is a piss-poor place to get advice about safe-cracking.

Movies too.

It's harder t ...
22-6-2019 at 20:37
by: SWIM
UNBELIEVABLY CHEAP microscopes
[/quote]

Edit....check out the listing for the microscope and if you are over 18 the sellers othe ...
22-6-2019 at 11:01
by: SWIM
How accurate are solution density measurements?
Sounds like a pycnometer.

They've got ones that include a thermometer in the design too.
20-6-2019 at 12:08
by: SWIM
How accurate are solution density measurements?
A good set of hydrometers makes this sort of thing much easier.

I suspect even a fairly broad ran ...
19-6-2019 at 19:22
by: SWIM
I found that elemental boron is inert to this aggressive chemical bulldozer
I thought he meant this

[file]75989[/file]
18-6-2019 at 18:32
by: SWIM
Table fan+window vs. outdoors, for ventilation.
If you need a fume hood, you need a fume hood.

But it's not just a matter of flammable or not fla ...
18-6-2019 at 10:01
by: SWIM
How to clean a separatory funnel?
I've had good luck with deposits by using commercial lime scale cleaners, like Lime Away (US product ...
16-6-2019 at 14:05
by: SWIM
Tryptamine question
If you want an interesting project along those lines you could always try making monomethyltryptamin ...
16-6-2019 at 10:46
by: SWIM
Drano uses?
Yup, I sure did.
Haven't seen that movie in many years, but I have been meaning to get a copy and w ...
15-6-2019 at 15:08
by: SWIM
UNBELIEVABLY CHEAP microscopes
https://www.ebay.com/itm/AmScope-40X-2500X-Binocular-Lab-Compound-Microscope-with-3D-Mechanical-Stag ...
13-6-2019 at 10:08
by: SWIM
UNBELIEVABLY CHEAP microscopes
Just bought one for $9.99 with free shipping from somebody else.

I reckon maybe some microscope m ...
13-6-2019 at 09:37
by: SWIM
Craiglist 100$ Glassware JACKPOT!!!! (Pics)
Strange...
Usually a Soxhlet would have a full width top for putting the materials in, but a liquid ...
12-6-2019 at 10:18
by: SWIM
Synthesis for hydrolaxamine to ketamine
It must be mixed with semen in a jar and buried in a stable in a warm manure pile.
After 40 days a ...
12-6-2019 at 07:46
by: SWIM
Electrolytic production of NaOH from salt water - Troubleshooting
You could always buy from Amazon.
I don't think you even need a credit card or Paypal.

You used ...
10-6-2019 at 19:06
by: SWIM
Craiglist 100$ Glassware JACKPOT!!!! (Pics)
I see a couple of solvent distillation heads, and a couple of PTO distillation heads.
Those are exp ...
10-6-2019 at 07:44
by: SWIM
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