| Search |
| [Next Page] |
A Note on the Synthesis of 3-Nitrophthalic Acid
I got 35% yield with a mp of 205-213C, so not quite pure but not bad, and sufficient for luminol. I ... |
24-4-2021 at 19:13
by: UC235 |
why still lead in paints that are labeled "Lead Safe" ?
Lead paint is considered >5000mg/kg dry weight. So while it does contain some lead, it is probabl ... |
2-4-2021 at 12:11
by: UC235 |
Yield of Nencki reaction
You could start by using the orgsyn procedure for your target compound (which does use acetic anhydr ... |
20-3-2021 at 15:10
by: UC235 |
Hydrazine sulfate and sodium sulfate separation
As far as I know, hydrazine sulfate doesn't ever form large or transparent crystals, but if you're g ... |
7-3-2021 at 05:59
by: UC235 |
Naphthalene storage
Glass is fine. You will definitely smell it through HDPE, at least eventually, but you won't lose a ... |
5-3-2021 at 15:14
by: UC235 |
Hydrazine process here outdated?
Bleach and urea are super cheap. Industry is very different from amateur.
We're not using the Bay ... |
2-3-2021 at 18:45
by: UC235 |
Cold and Minty
Menthol is a solid at room temperature. A decent freezer should be about -20C. The yield might be a ... |
2-3-2021 at 18:30
by: UC235 |
Anyone have a simple tetrapropylammonium bromide?
No, you'd need to start from n-propanol. Conversion to n-propyl bromide should be fairly trivial and ... |
20-2-2021 at 08:12
by: UC235 |
Odd behaviour of a pickling gel
Well, mistake #1 was putting HF in glass.
More directly related is that since it's a gel, it cle ... |
9-2-2021 at 17:09
by: UC235 |
Any way to tell if there is bromobenzene in benzene?
[rquote=654309&tid=156986&author=DraconicAcid]The Beilstein test, I think it's called- dip a ... |
3-2-2021 at 20:14
by: UC235 |
Acylal and "ketylal" properties
Here's a prep of a benzylidene diacetate: http://orgsyn.org/Content/pdfs/procedures/cv2p0441.pdf |
2-2-2021 at 18:29
by: UC235 |
The chemistry of Sorbic acid
Not particularly helpful, but with reference to the original post, here is what one of the thiobarbi ... |
26-1-2021 at 16:22
by: UC235 |
making fused quartz at a lower tenperature using silica gel
A similar idea is how the material called Vycor is produced. A very alkali-rich borosilicate glass i ... |
25-1-2021 at 17:26
by: UC235 |
Does methanol smell like anything to you?
[rquote=653706&tid=156525&author=njl]I always buy klean strip denatured fuel alcohol as a so ... |
25-1-2021 at 15:01
by: UC235 |
Preparation of 3,4,5 trimethoxyphenylpyruvic acid
It seems like the benzoic acid substantially complicates the purification. Would starting from acety ... |
24-1-2021 at 20:21
by: UC235 |
KCl or KHCO3 / K2CO3 from KNO3
KCl is often available extremely cheaply as water softener salt. I'm not sure how common this is in ... |
24-1-2021 at 17:59
by: UC235 |
Ethylene Glycol from Antifreeze
Even the "concentrate" antifreeze contains some water. Be sure to discard the forerun. There's also ... |
22-1-2021 at 18:06
by: UC235 |
Preparation of furfural from cherry gum and other pentose sources
When I attempted to produce furfural from ribose I found that the conversion to furfural seemed to b ... |
2-1-2021 at 07:44
by: UC235 |
Reduction mechanism
SET is single-electron transfer. Bulk metallic zinc (with an active surface maintained by the acetic ... |
25-12-2020 at 11:22
by: UC235 |
Campa-chem original as formaldehyde source?
You do know that formalin normally contains 10-15% methanol to limit polymerization of the formaldeh ... |
25-12-2020 at 11:08
by: UC235 |
Is it normal to get low yields all the time, or am I a bad organic chemist?
Depends what you're doing and scale. Mechanical losses on small preparations can cause large drops i ... |
24-12-2020 at 20:54
by: UC235 |
I need help finding the very bane of roaches existence...
Wood roaches do not actually live or breed indoors and need moist environment (ie: outdoors) but end ... |
10-12-2020 at 17:50
by: UC235 |
P-nitrobenzoic acid reduction pH level question
I'm sure you can use more dilute ammonia for the initial neutralization. Another benefit to using am ... |
2-12-2020 at 20:44
by: UC235 |
P-nitrobenzoic acid reduction pH level question
Hydrous tin oxide is soluble in excess NaOH forming sodium stannate.
Acetic acid is used to redu ... |
2-12-2020 at 20:17
by: UC235 |
Absolute volume of vessels?
Glassware is all over the place in my experience. I have 100ml flasks that are probably 80ml and I h ... |
2-12-2020 at 15:15
by: UC235 |
| [Next Page] |
