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Copper sulfate has become "chalky white" after prolonged air exposure
[rquote=601559&tid=110730&author=pneumatician]exposed to Sun?[/rquote]
if you tried to re ... |
12-2-2019 at 04:47
by: Ubya |
What to do with lots of plastic packaging ?
[rquote=601546&tid=144419&author=andy1988]I recall a U.S. injection molding factory owner ta ... |
12-2-2019 at 04:46
by: Ubya |
Processing animal waste (manure) - any way to speed up the process?
[rquote=601561&tid=97670&author=pneumatician]Reduce the farm?
I want to do the same with ... |
12-2-2019 at 04:39
by: Ubya |
Lead acetate decahydrate?
[rquote=600899&tid=143789&author=fusso]When I made Pb acetate, I used PbO from chem supplier ... |
7-2-2019 at 09:57
by: Ubya |
Lead acetate decahydrate?
my solution also has this white precipitate, and if i remember correctly this happened also to other ... |
7-2-2019 at 08:44
by: Ubya |
Tired of reporting spam
botKilla is not working at the moment, the board is full of spam |
5-2-2019 at 11:24
by: Ubya |
Problem with Potassium Dichromate solubility
If you have a very soluble potassium salt (potassium nitrate maybe) you could convert your sodium di ... |
4-2-2019 at 17:10
by: Ubya |
Problem with Potassium Dichromate solubility
[rquote=598678&tid=142202&author=walruslover69]Sodium Dichromate sounds like the most likely ... |
3-2-2019 at 15:24
by: Ubya |
Cold Weather Experiments
in rome -3 could be considered extreme cold not enough to liquefy SO2 but when
i tried to use my b ... |
3-2-2019 at 15:19
by: Ubya |
How to make a Gas Liquid Diffuser, Bubbler ?
how much pressure?
can you show the diffusers you blew off? maybe a smaller diameter could work.
... |
3-2-2019 at 11:22
by: Ubya |
Problem with Potassium Dichromate solubility
ammonium dichromate is also out of the list (156g/100ml 100°C).
are you sure this is really dichro ... |
3-2-2019 at 10:41
by: Ubya |
Chemistry with terracotta pots - what are some experiments that can be done?
has anyone tried sodium silicate and sand to fill the hole? after exposure to heat or CO2 it hardens |
3-2-2019 at 05:13
by: Ubya |
DIY Heating Mantle (How To Build It)
[rquote=598013&tid=131718&author=Aspigma]In my opinion you are not right. Write to me in PM, ... |
2-2-2019 at 12:57
by: Ubya |
Sigma-Aldrich
they have everything, but prices are over the roof, so if you can find what you want somewhere else ... |
2-2-2019 at 04:47
by: Ubya |
Reducing copper hydroxide
[rquote=596465&tid=139113&author=Housane]Ok sorry
In Thought emporiums video on this su ... |
31-1-2019 at 12:09
by: Ubya |
Tired of reporting spam
"everyday chemistry (provisional)" is getting so spammed we can't keep up, same story with many stic ... |
31-1-2019 at 12:05
by: Ubya |
indole from solvent extraction of feces
indole has a concentration of about 10 μg/g in feces( https://www.sciencedirect.com/science/article ... |
30-1-2019 at 01:34
by: Ubya |
Chemistry with terracotta pots - what are some experiments that can be done?
[rquote=595068&tid=139027&author=vmelkon][rquote=594785&tid=139027&author=Ubya]it ca ... |
29-1-2019 at 17:10
by: Ubya |
Homemade and Repurposed Lab Gear
[rquote=595092&tid=61783&author=C6(NO2)5CH2CH(CH3)N(NO2)2]This appears to be a mild form of ... |
29-1-2019 at 17:07
by: Ubya |
PC-420D magnetic stir repair
hard to do without any info apart from "it's broken"
open the unit and look for something unusual, ... |
29-1-2019 at 14:04
by: Ubya |
Chemistry with terracotta pots - what are some experiments that can be done?
it can be used as cell membrane as you said
boiling stones
catalyst support
cracking of hydrocarb ... |
29-1-2019 at 09:07
by: Ubya |
Rusty ball thermit
myst32YT showed it 9 years ago. https://www.youtube.com/watch?v=rqXP-yUT_zI |
29-1-2019 at 02:54
by: Ubya |
Starlite as high temp insulation material ?
good insulator, but not good for a furnace lining. the carhon foam it creates will eventually be bur ... |
28-1-2019 at 11:39
by: Ubya |
Cryogenic Chemistry (Cryochem)
birch reduction of benzene rings (liquid ammonia and sodium metal)
many reaction need subzero tem ... |
27-1-2019 at 12:55
by: Ubya |
smaller rbf flask in larger heating mantle
[rquote=592637&tid=137214&author=Dan Vizine]The best solution is to fill the empty space wit ... |
26-1-2019 at 17:04
by: Ubya |
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