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Making A Test Tube Rack -- Evenly Spacing Holes
Make the first mark radius+0.5 inches in from the edge, then continue making marks every diameter+0. ...
21-6-2018 at 16:38
by: Geocachmaster
How Hot can boiling salt water get?
About 107 C, at atmospheric pressure at least.

~400g of sodium chloride will dissolve in 1 Kg of ...
6-6-2018 at 15:14
by: Geocachmaster
Prepublication section, why not make a amateur-scientific journal ?
This is a great idea!

Because of likely sporadic participation, how about a limit of ~20 papers p ...
4-6-2018 at 17:37
by: Geocachmaster
Gibbs Free Energy help
No, Le Chatelier’s principle states that a system at equilibrium will readjust to counteract a cha ...
22-5-2018 at 04:04
by: Geocachmaster
Gibbs Free Energy help
Looking up the values in some books I have, I get a ∆S of -167 J (close enough) for the reaction w ...
21-5-2018 at 13:37
by: Geocachmaster
Gibbs Free Energy help
The biggest problem is the units of S˚f. Entropy is given as J/mol*K, while enthalpy and Gibbs free ...
20-5-2018 at 13:16
by: Geocachmaster
Small scale preparation of Stannic Chloride (SnCl4)
Yes, you should dry the Cl[sub]2[/sub]. If you don't have a drying tube or Drechsel Bottle, just use ...
26-4-2018 at 03:16
by: Geocachmaster
When Chemistry Goes Wrong
Tonight I was distilling HCN (produced from ferrocyanide and acid) into alcoholic NaOH to produce so ...
20-4-2018 at 18:21
by: Geocachmaster
Doug's Lab
Very weird though. On 2/12 he posted on Twitter that a video was coming out that night. That was the ...
4-4-2018 at 18:36
by: Geocachmaster
Homebuilt 1300°C tube furnace
I just built a tube furnace which is capable of reaching 1100 C.

The heart of the furnace is an [ ...
31-3-2018 at 05:06
by: Geocachmaster
new toys
I just got two reaction vessels with lids! Both are 2 liters, one is glass and the other is stainles ...
23-3-2018 at 07:49
by: Geocachmaster
Looking to interview (professional) organic chemist
I am currently in my second year of high school and I’m figuring out what to do with my life. I kn ...
12-3-2018 at 03:50
by: Geocachmaster
Last chemical order?
This just arrived today. I’m super excited because I’ve been looking for chloroacetic acid for a ...
23-2-2018 at 13:47
by: Geocachmaster
Last chemical order?
250g sodium metal :D

It was actully a Christmas present from my mom :)

Here it is, cleaned and ...
30-12-2017 at 07:04
by: Geocachmaster
Thiourea disposal
Does anyone have experience disposing of thiourea? I can't seem to find anything on it anywhere.

...
24-12-2017 at 09:39
by: Geocachmaster
Bad days in the lab or with glassware?
Trying to make magnesium nitride today, apparently red hot magnesium isn't compatible with fused qua ...
23-12-2017 at 19:24
by: Geocachmaster
Hard balancing
Edit: Spoiler warning if you are trying to solve it


Do you mean 2:3:2 2:3:3 ?

The answer y ...
18-11-2017 at 05:10
by: Geocachmaster
When Chemistry Goes Wrong
Hydrolysis isn't very fast at room temperature. Otherwise you wouldn't have to reflux the mixture to ...
17-11-2017 at 16:19
by: Geocachmaster
When Chemistry Goes Wrong
Every time I've made an ester I've had low yields, usually in the 50-60% range. Recently I was makin ...
17-11-2017 at 15:38
by: Geocachmaster
Sources of choline chloride in Australia
Yep, that's me. I added some narration to make the video a bit more bearable. Maybe it's up to aga's ...
21-10-2017 at 04:41
by: Geocachmaster
Stopcock size
Are the sizes of glass stockcocks standardized? I need one that has a 2mm bore, ~30mm long, ~13mm wi ...
14-10-2017 at 19:11
by: Geocachmaster
:(
I would not recommend drying chlorine chloride at a temp greater than 150 C. Today I had about 50g d ...
14-10-2017 at 18:47
by: Geocachmaster
OTC Oxalyl Chloride Challenge
I made a good plan that started with 100% hardware store chemicals, I'm 60-70% sure that it would wo ...
31-8-2017 at 17:22
by: Geocachmaster
When Chemistry Goes Wrong
I learned today that solutions of NaOH in alcohol are not compatible with HDPE. After two days I not ...
24-8-2017 at 17:38
by: Geocachmaster
When Chemistry Goes Wrong
Unhooking the water lines to a condenser. Easy enough to do, except when you forget to turn off the ...
20-8-2017 at 17:30
by: Geocachmaster
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