| Search |
| [Next Page] |
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 |
Manganates... not PERmanganates (Mn V and VI Redox Chemistry)
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 |
Last chemical order?
Dear Mods,
(and everyone to whom it may concern)
I wanted to ask a long time ago whether anyone ... |
23-5-2019 at 12:41
by: Pumukli |
How to accurately determine NH3 concentration?
A while ago I had to titrate fairly concentrated dimethylamine in water. I don't have the laboratory ... |
23-5-2019 at 09:41
by: Pumukli |
Sulphonation of chlorophenol
I'd try. :-) I don't know how the nucleophilicity of NH3 compares to the NH2's in urea though. But a ... |
22-5-2019 at 09:21
by: Pumukli |
1,4-butanodiol from butadiene
Yes, dibenzoil-peroxide would probably work. Anti-Markownikov additions go along radical pathway so ... |
22-5-2019 at 08:20
by: Pumukli |
1,4-butanodiol from butadiene
"why does the double bond move with the formation of 1bromo2butene from the butadiene?"
1,4-addi ... |
21-5-2019 at 08:01
by: Pumukli |
What to do with a bottle of 60% HF?
This is not a toy, but of course you are well aware of it. :-) Don't spill it on anything living, if ... |
21-5-2019 at 01:55
by: Pumukli |
Sulphonation of chlorophenol
"⅔ o- ⅓ p- just for geometrical reasons"
I'm almost sure that the ratio will be different, mo ... |
20-5-2019 at 21:34
by: Pumukli |
O-methylation in acid
AvBaeyer,
Thanks for the clarification!
Now I have at least a name (Stork) and a keyword (2-na ... |
19-5-2019 at 22:12
by: Pumukli |
O-methylation in acid
I have accidentally found something at OrgSyn which really intrigued me and I could not explain. I'm ... |
19-5-2019 at 07:23
by: Pumukli |
Hypothetically drinkable ethanol from methylated spirits
Back to the topic: once I tried dissolving NaOH (a few percent) into the stuff and then added a few ... |
17-5-2019 at 03:38
by: Pumukli |
| [Next Page] |
