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Any way to prepare anhydrous ZnCl2 without using gaseous Cl2 or HCl?
OK, I'm stand corrected!
I asked around and someone told me that those guys I mentioned in my pre ... |
12-6-2019 at 12:21
by: Pumukli |
making intresting substances from already available compounds
Pesticides can be useful precursors in org. chem. if you know what to look for.
Modern ones are s ... |
11-6-2019 at 20:04
by: Pumukli |
Any way to prepare anhydrous ZnCl2 without using gaseous Cl2 or HCl?
I've seen people who made relatively big ammounts (circa 200g) ZnCl[sub]2[/sub] melt on a strong gas ... |
11-6-2019 at 02:48
by: Pumukli |
Capsaicin extraction and isolation
Maybe it would be worth trying extraction first with something apolar, say heptane, petrol ether, so ... |
10-6-2019 at 12:22
by: Pumukli |
Any way to prepare anhydrous ZnCl2 without using gaseous Cl2 or HCl?
Drying hydrated ZnCl[sub]2[/sub] is possible by melting. (Strong heating required, in a stainless st ... |
10-6-2019 at 12:13
by: Pumukli |
Alkynyl Magnesium Halide:Grignard's reagent
Yes, it is a Grignard.
We can prepare an alkyne from it, yes.
"rather than using Alkyl Halides"
... |
9-6-2019 at 09:50
by: Pumukli |
Diethanolamine from 2-Chloroethanol
"and figure out what the chemical equation is for this reaction?"
Isn't this reaction a bit too a ... |
9-6-2019 at 09:37
by: Pumukli |
Chloroform Synthesis: Why does the common procedure uses Acetone instead of Ethanol?
Are you sure that HCOONa would survive being in the same mixture with NaOCl?
Formiates are fair red ... |
2-6-2019 at 03:29
by: Pumukli |
Just a little confusion on the god-like complexes of our mods
Interesting thread.
I don't think any of the mods have problems with god-like complexes, they mod ... |
1-6-2019 at 12:32
by: Pumukli |
Pathways to phenethyl alcohol
That D-glucose, oxygen in aq. phosphate buffer, Time=8h, T=30[sup]o[/sup]C, Green chemistry, regiose ... |
1-6-2019 at 10:25
by: Pumukli |
Diethyl ether from chloroethane and sodium ethoxide
"Has anyone ever attempted this?"
A man called Mr. Williamson probably did. 
https://en.wik ... |
30-5-2019 at 11:24
by: Pumukli |
Gas pressure/flow regulator
Actually lots of CO[sub]2[/sub] regulators are sold/advertised as CO2/Argon regulator! These tanks ( ... |
30-5-2019 at 11:13
by: Pumukli |
The moment (or moments) that made you realize you had a passion for chemistry
Very well written story, Woelen!
My earliest chemistry related memory goes back when I was around ... |
30-5-2019 at 10:24
by: Pumukli |
Hydrolysis of l-Theanine and the synthesis of Ethylurea
Nicely written report!
Very interesting that the synthesys sequence gave such a high yield, includi ... |
30-5-2019 at 09:18
by: Pumukli |
Gas pressure/flow regulator
Yes, thread adapters can be made or bought from e.g. Ebay. |
30-5-2019 at 08:15
by: Pumukli |
Acetonedicarboxylic acid from ferric ammonium citrate
I heard that P[sub]2[/sub]O[sub]5[/sub] can dehydrate even H[sub]2[/sub]SO[sub]4[/sub]... Maybe it w ... |
29-5-2019 at 03:58
by: Pumukli |
Pathways to phenethyl alcohol
Whoa, SWIM, you weren't lazy! Came up with so many suggestions. I'd join the train of thoughts and s ... |
29-5-2019 at 03:51
by: Pumukli |
Separation of paraffin wax
Beeswax is not paraffin, it's a different animal chemically. But I don't see why would it be easier ... |
28-5-2019 at 11:21
by: Pumukli |
Pathways to phenethyl alcohol
It may solve the problem. I suggest though to look up some real preparation with ethyleneoxide befor ... |
28-5-2019 at 06:04
by: Pumukli |
Pathways to phenethyl alcohol
(OH) was a hint.
The OH group is not tolerated in a Grignard reaction. That H is too acidic and dec ... |
28-5-2019 at 04:57
by: Pumukli |
Pathways to phenethyl alcohol
2-chloro-ethanol in a Grignard reaction? Think it over. (OH)
Grignard reaction with formaldehy ... |
28-5-2019 at 04:34
by: Pumukli |
Purifying calcium/ammonium nitrate fertilizer, how to determine product?
Ammonium nitrat thermal decomposition gives N[sub]2[/sub]O.
Not NO[sub]2[/sub].
As I said, NO[su ... |
26-5-2019 at 08:11
by: Pumukli |
Purifying calcium/ammonium nitrate fertilizer, how to determine product?
Rest assured: heating ammonium nitrate to the 700-1000 C range in a closed container WILL LEAD to dr ... |
26-5-2019 at 04:36
by: Pumukli |
Sulphonation of chlorophenol
If sulfuric acid is not concentrated enough then it won't oxidize it.
I don't know, maybe 75-85% ac ... |
25-5-2019 at 23:30
by: Pumukli |
Manganese redox chemistry in strongly alkaline media (hypomanganates, manganates)
In my country mangane(II)-sulphate can be freely bought in farmer supply stores! It is used as micro ... |
23-5-2019 at 22:05
by: Pumukli |
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