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Lab Labels
Yeah, I like using the label maker tape too, if for no other reason than it's waterproof and reasona ... |
10-4-2018 at 10:07
by: DavidJR |
Azeotropes
[rquote=513679&tid=81835&author=ninhydric1]
Wait, so if I, theoretically, distill my 99% is ... |
9-4-2018 at 15:17
by: DavidJR |
Some examples
[b]Example 1: Zeotropic mixtures[/b]
Consider a mixture of methanol (b.p. 65c) and water (b.p. 10 ... |
9-4-2018 at 15:00
by: DavidJR |
Lab tips & tricks
[rquote=513493&tid=81777&author=LearnedAmateur][rquote=513336&tid=81777&author=j_sum ... |
8-4-2018 at 10:14
by: DavidJR |
Cody's lab making of H2O2, does somebody know this ?
[rquote=513489&tid=81798&author=Sulaiman]If you are in Australia then a source of hydrogen p ... |
8-4-2018 at 06:47
by: DavidJR |
What is stronger? Sunlight or artificial light?
Sunlight, by far, is 'stronger' than the most frequently encountered artificial light sources. The h ... |
8-4-2018 at 06:30
by: DavidJR |
Lengthy, time-consuming overhaul of forum software
[rquote=513465&tid=80530&author=Melgar]
Would anyone care if I made it HTTPS exclusively, a ... |
7-4-2018 at 21:02
by: DavidJR |
reaction with Potassium Peroxymonosulfate (oxone)
Chemplayer did a video on producing bromine from NaBr with a persulphate as the oxidizer: https://ww ... |
7-4-2018 at 20:38
by: DavidJR |
Cody's lab making of H2O2, does somebody know this ?
It bothers me that he mispronounces anthraquinone in that video...... |
7-4-2018 at 11:40
by: DavidJR |
Nylon and Acid
[rquote=513280&tid=19169&author=unionised]
The second is this: is the solution of nylon in ... |
6-4-2018 at 18:25
by: DavidJR |
Feasibilty of using or selling large quantites of specific chemicals/compounds
I have one of [url=https://www.ebay.co.uk/itm/Impulse-Heat-Sealer-Plastic-Bag-Film-Sealing-Machine-M ... |
6-4-2018 at 18:10
by: DavidJR |
Feasibilty of using or selling large quantites of specific chemicals/compounds
I resell a handful of chemicals on eBay, my best-selling (though best selling is not necessarily mos ... |
6-4-2018 at 15:39
by: DavidJR |
Fisher Accumet IC (transistor?) replacement?
Yes, 7805 seems very likely. |
5-4-2018 at 18:52
by: DavidJR |
Lithium as Sodium Replacement?
[rquote=513235&tid=81727&author=BromicAcid]
My take on it is that the lithium is cheaper be ... |
5-4-2018 at 17:58
by: DavidJR |
Lithium as Sodium Replacement?
I bought sodium from [url=https://www.ebay.co.uk/itm/Sodium-Metal-Ingots-56-Grams-28g-x-2-Pre-packed ... |
5-4-2018 at 11:07
by: DavidJR |
Pretty Pictures (2)
Accidental big crystals of potassium iron (iii) oxalate.
[file]66906[/file] |
4-4-2018 at 14:58
by: DavidJR |
Homemade and Repurposed Lab Gear
The stem of my polypropylene buchner funnel fits perfectly into this adapter:
[file]66904[/file] |
4-4-2018 at 14:56
by: DavidJR |
Synthesis of Octyl Acetate
[rquote=513086&tid=81729&author=Dr.Bob]I seem to remember that one of the octanol isomers is ... |
4-4-2018 at 12:23
by: DavidJR |
Calculation solubility - g/L - the proper method of calculation
Funny, I was wondering about this today... |
3-4-2018 at 15:28
by: DavidJR |
Looking for a UK source of aluminium granules for a heat bath
[rquote=512877&tid=81052&author=Sulaiman]At those costs it is worth buying a heating mantle. ... |
3-4-2018 at 14:43
by: DavidJR |
ChemPlayer the story and the end for now
I really hope chemplayer doesn't disappear from youtube, that would be a real shame. I have backed u ... |
2-4-2018 at 13:58
by: DavidJR |
Anyone interested in some tritium clock hands?
Huh, I wasn't aware that tritium paint was possible. I'm familiar with the gaseous tritium light sou ... |
26-3-2018 at 11:51
by: DavidJR |
Glass Vials
Glad to hear they made it intact (you know what royal mail is like...). Thanks for buying  |
26-3-2018 at 10:33
by: DavidJR |
Ebay and Packaging
[rquote=511844&tid=81444&author=Bert]Amazon has been truly idiotic in their packing practice ... |
24-3-2018 at 06:04
by: DavidJR |
Salvaging MnO2 from batteries really isn't worth it (dirty) - getting pottery grade worth it!
Re MnO[sub]2[/sub] stains: a solution of sodium bisulphite makes them vanish almost instantly. Very ... |
21-3-2018 at 21:46
by: DavidJR |
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