-
Posts
3 -
Joined
-
Last visited
Content Type
Profiles
Forums
Events
Posts posted by Kelaniz
-
-
Has anyone tried the method where you layer equal parts Sulfur and KNO3 (or NaNO3) and bubble the gases through water? That seems to be a really simple way, provided you have the right labware, and doesn't require temperatures higher than what a basic alcohol lamp can provide.
Kel
0 -
I started doing this myself after getting sick of price increases on NaOH. Not to mention dealing with paranoid shippers charging outrageously high hazmat fees.
Anyway, when NaHCO3 gets to the proper temperature, it'll literally bubble (especially if you stir it). It looks like air bubbling up through wet sand at the beach. When it stops bubbling, it's done. Na2CO3 looks a little more grayish than NaHCO3, and is a little bit more free-flowing.
As for the Ca(OH)2, you can still easily that at any grocery store. I buy MrsWAGES pickling lime from the canning section. It's a big, green, 16oz HDPE canister an costs around $4 where I live. There are a few brands that have additives, but the one above is 100% food-grade hydrated lime. I see it everywhere. Guess that means nobody's figured out how to make an illegal substance with it yet. :/
Kel
0
sulfuric acid
in Inorganic Chemistry
Posted
Anyone know why the density of H2SO4 would decrease above 98% concentration? I've noticed this in two separate charts listing the densities for various concentrations:
% density (g/mL)
1 1.0049
10 1.0661
30 1.2191
90 1.8144
92 1.8240
94 1.8312
96 1.8355
98 1.8361
100 1.8305
This makes no sense to me. However, to be fair, whenever that happens, I'm usually missing something.
-Kel