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3A seives (and others 4A, 5a, x11, x13 and more) - about $6/lb
I would be interested in a kg of 3A (pellets or spheres, not powder), and possibly another size. I a ... |
12-5-2017 at 16:15
by: CharlieA |
Is paraformaldehyde and formaldehyde interchangeable?
According to Wikipedia, the font of all chemical knowledge (sarcasm intended), dry heating of parafo ... |
12-5-2017 at 08:38
by: CharlieA |
Freezing point of solutions (Ceric nitrate, Urea, Hexamine)
Well just a thought but you could try freezing a small sample of each solution and measure it's free ... |
3-5-2017 at 17:11
by: CharlieA |
Do Walgreens Instant Cold Packs still contain Ammonium Nitrate?
In Nov. I bought 2 instant cold packs from Target for about $3.50 with tax. They totaled about 210g ... |
3-5-2017 at 17:05
by: CharlieA |
Anyone interested in joining a NYC chemistry group?
re respect for chemists/chemistry: whatever happened to "better living through chemistry?" (sigh) ... |
1-5-2017 at 15:37
by: CharlieA |
Bisulfite adduct issues
Do you have a reference for preparing bisulfite adducts with sodium metabisulfite (Na2S2O5)? This is ... |
28-4-2017 at 18:05
by: CharlieA |
The Problem with SynthSource
Praxichys: I am probably in the market for some of each (cation and anion exchange resins). |
28-4-2017 at 11:41
by: CharlieA |
The Problem with SynthSource
The amount of resins needed depends in great part upon the quality of the water you start with. You ... |
28-4-2017 at 11:37
by: CharlieA |
ninhydrin synthesis
clearly_not_atara: Two moles of phenol react with one mole of phthalic anhydride to yield one mole o ... |
24-4-2017 at 18:10
by: CharlieA |
ninhydrin synthesis
Buying is definitely easier and faster and cheaper.
Robert Bruce Thompson, in his Supplement to his ... |
24-4-2017 at 09:18
by: CharlieA |
chrome alum from Cr(III) acetate
[rquote=479867&tid=73283&author=Dmishin]I am pretty sure that mixing chromium acetate with e ... |
4-4-2017 at 18:01
by: CharlieA |
methyl 4-aminobenzoate synthesis report
First, I admire your attempt at doing chemistry. That said, there is almost no time when one should ... |
4-4-2017 at 17:36
by: CharlieA |
too cautious?
Well, not to be a smart-alec (which I have been known to be, at times), but if you don't take it out ... |
4-4-2017 at 17:28
by: CharlieA |
Air rifle pump for pressurizing catalytic hydrogenation vessel?
Am I thinking correctly? 4500 psi is about 300 atmospheres...what will hold this? And a good bicycle ... |
4-4-2017 at 17:00
by: CharlieA |
latest glassware purchase
Not a purchase but my wife found these in an antique/resell it shop, for my recent birthday. From le ... |
3-4-2017 at 15:55
by: CharlieA |
Book review...of sorts!
[rquote=479586&tid=70520&author=Magpie]Here's a list of the chemistry related books that I h ... |
31-3-2017 at 16:28
by: CharlieA |
Solubility musings
[rquote=479413&tid=73207&author=phlogiston]Also striking are the perchlorates of the alkali ... |
30-3-2017 at 16:38
by: CharlieA |
Book review...of sorts!
I just read "Periodic Tales," by Hugh Aldersey-Williams. This book is sub-titled "a cultural history ... |
30-3-2017 at 15:20
by: CharlieA |
Separation of a US nickel
A lot of solubility data, including nickel compounds, can be found at:
https://en.wikipedia.org/w ... |
29-3-2017 at 06:43
by: CharlieA |
Vogel's Textbook of Practical Organic Chemistry
Such classical chemistry (alchemy) by all! I, as an unrecalcitrant old fart love it! Whether the pos ... |
28-3-2017 at 18:36
by: CharlieA |
Which reaction can I use to transform 2-hydroxyethyl-triethylammonium bromide to 2-hydroxyethyl-triethylammonium chloride?
Concerning your ion exchange column results: After passing the bromide through the column did you me ... |
28-3-2017 at 18:26
by: CharlieA |
Sodium Carbonate and Aluminum reaction
The original poster's reaction equation does not show water as either a reactant or a product. But s ... |
28-3-2017 at 18:16
by: CharlieA |
Caffeine extraction low yield?
From 10 g of coffee, you can expect ca. 135 mg caffeine. Assuming 100% recovery, you should have bee ... |
28-3-2017 at 18:02
by: CharlieA |
Could you survive a year with only the chemicals you could make from a hydrocarbon feedstock?
Very interesting thought experiment! I assume you have enough sustenance to hold you until your firs ... |
28-3-2017 at 17:23
by: CharlieA |
latest read...
I just finished the following tome by Darden H. Dickson: Memorizing the periodic table of elements. ... |
26-3-2017 at 09:01
by: CharlieA |
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