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some questions about triethyl phosphate
[rquote=657417&tid=157245&author=zed]Hunh? In the USA, the number he reports is 1,311 mg... ... |
2-4-2021 at 05:28
by: unionised |
Heat and Desiccating Organic Solvents
Acetone also has a heat of hydration, and you "lose" that energy.
Also, you need to take care wha ... |
31-3-2021 at 13:56
by: unionised |
very brittle coating on TLC
Are you trying to use gypsum as a binder, rather than adding plaster of Paris to the alumina so that ... |
30-3-2021 at 10:46
by: unionised |
Nitrifying Bacteria Reactor for Generating Nitrate Salts
[rquote=657168&tid=157219&author=Antiswat] im very certain that was at least 10% ammonia, [/ ... |
28-3-2021 at 11:59
by: unionised |
Freezing point depression by impurities?
It's not guaranteed- especially if the liquid is viscous.
The other thing that often works is scrat ... |
27-3-2021 at 06:07
by: unionised |
Quickly drying mineral oil or storing sodium without mineral oil?
[rquote=657117&tid=157226&author=Draeger]When I put it upright in just a small puddle of oil ... |
27-3-2021 at 05:56
by: unionised |
Freezing point depression by impurities?
It depends on the solvent.
https://en.wikipedia.org/wiki/Cryoscopic_constant
but the effect is usu ... |
27-3-2021 at 04:35
by: unionised |
Ambergris.
I'm pretty sure that ambergris will not dissolve in aqueous HCl. |
26-3-2021 at 04:44
by: unionised |
Qualitative V/Cr detection
https://en.wikipedia.org/wiki/Chromium(VI)_oxide_peroxide |
23-3-2021 at 14:37
by: unionised |
Platinized Ti anodes from ebay: fake ?
My point was that, if it sticks to a magnet, you can send it back ( or demand a refund) without any ... |
23-3-2021 at 12:38
by: unionised |
Hand vs. NaK
[rquote=656240&tid=157134&author=EliasExperiments]I am pretty confident that I can do it saf ... |
18-3-2021 at 10:49
by: unionised |
Uranium acting really weird. Maybe something is complexing with it?
Could there be carbonate in your ammonia solution? |
18-3-2021 at 00:48
by: unionised |
Why is my mercury doing this?
[rquote=656498&tid=157171&author=itsallgoodjames] Do you think that isopropanol or ethyl ac ... |
16-3-2021 at 07:52
by: unionised |
Why is my mercury doing this?
It may just be oily, in which case a wash with acetone or something like that will work.
A rinse wi ... |
16-3-2021 at 04:52
by: unionised |
Platinized Ti anodes from ebay: fake ?
Do these "platinised titanium" electrodes stick to a magnet? |
14-3-2021 at 03:15
by: unionised |
Making nitric acid with HCl vapor & NaNO3?
https://en.wikipedia.org/wiki/Nitrosyl_chloride |
11-3-2021 at 01:12
by: unionised |
Mystery Glassware Identification Thread
[rquote=655976&tid=31602&author=Sulaiman]I don't know what it is but I want one!
I think ... |
7-3-2021 at 08:35
by: unionised |
Mystery Glassware Identification Thread
I was surfing eBay and came across this. The description is "Distillation apparatus reflux Quickfit ... |
7-3-2021 at 05:26
by: unionised |
What is a realistic output for an ozone generator?
The people who sell power amplifiers used to quote "peak music power output" which was calculated by ... |
2-3-2021 at 14:08
by: unionised |
Crystallisation - truly a dark art
I have seen DCM which has actually turned green when left in contact with a porous stainless steel f ... |
2-3-2021 at 14:00
by: unionised |
Cold and Minty
Looking at that paper I wonder if reduction of the peppermint oil with borohydride before fractionat ... |
2-3-2021 at 11:23
by: unionised |
Delrin as paraformaldehyde source?
I worked in a lab looking at measuring formaldehyde in air.
One option was to draw the air through ... |
28-2-2021 at 02:12
by: unionised |
Delrin as paraformaldehyde source?
I may have missed a detail. Did you add an acid catalyst to promote decomposition? |
27-2-2021 at 16:08
by: unionised |
White growth on unopened container of chlorotrimethylsilane
Thanks for that . The word "olation" is a new one to me.
A mixture of silica, silicones and NH4Cl ... |
27-2-2021 at 03:37
by: unionised |
Very pure sulfur without recrystallization
[rquote=655470&tid=157081&author=RogueRose] but I guess it was hot enough to reach flash poi ... |
26-2-2021 at 05:01
by: unionised |
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