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The Short Questions Thread (4)
1. Yes
2. Fuming
3. You'd get a solution of HNO3 (less than 68%) that can be distilled fractionall ... |
22-12-2020 at 04:46
by: Antigua |
Formaldehyde bisulfite adduct preparation
I feel like crystallization won't work here easily. After sitting in the freezer nice, white, thick ... |
21-12-2020 at 11:10
by: Antigua |
Dissolving metals in acid report
A piece of good work!
|
21-12-2020 at 11:07
by: Antigua |
Formaldehyde bisulfite adduct preparation
47.15g (1.1 mol eq.) of 35-38% (I assumed it was 35%) formaldehyde aq. solution (formalin) was poure ... |
20-12-2020 at 06:03
by: Antigua |
Member questions
Atara seems to be the successor of Nicodem, Klute has a tidy lab and Fluorite is the guy that will n ... |
19-12-2020 at 16:53
by: Antigua |
Need help finding a non flammable low temp boiling liquid
Just DCM? Or is that out of reach for you? |
19-12-2020 at 16:30
by: Antigua |
Removal of caked on MnO2 from round bottom flask?
Almost everything works... sodium bisulfite (so sodium metabisulfite too), dilute HCl, even some det ... |
19-12-2020 at 16:21
by: Antigua |
Formaldehyde bisulfite adduct preparation
I'm going to conduct some experiments - luckily the formation of adduct leads to no side products. T ... |
19-12-2020 at 16:01
by: Antigua |
Formaldehyde bisulfite adduct preparation
No, these are different compounds. Rongalite is the adduct formed from dithionite, not bisulfite. |
17-12-2020 at 12:54
by: Antigua |
Formaldehyde bisulfite adduct preparation
Additional source: https://www.chemicalforums.com/index.php?topic=70428.msg253949#msg253949
Infor ... |
17-12-2020 at 09:04
by: Antigua |
Purifying sulfuric acid
The cost of flasks would be the last of my worries when dealing with 300°C boiling hot concentrated ... |
17-12-2020 at 03:07
by: Antigua |
"In Memoriam" Page
Happy birthday Tex! |
16-12-2020 at 11:55
by: Antigua |
Formaldehyde bisulfite adduct preparation
Hey,
I'd like to prepare some pure formaldehyde bisulfite adduct as a powder. I've found a coup ... |
16-12-2020 at 07:07
by: Antigua |
Sodium Triacetoxyborhydrid from NaBH4 in Benzene **HELP**
Actually you're right. Apparently some reactions with STAB are carried out in 1-2 mol eq. GAA, my ba ... |
15-12-2020 at 10:21
by: Antigua |
Sodium Triacetoxyborhydrid from NaBH4 in Benzene **HELP**
[rquote=651351&tid=156748&author=njl]You need to share more about your preparation and inten ... |
15-12-2020 at 09:43
by: Antigua |
Sodium Triacetoxyborhydrid from NaBH4 in Benzene **HELP**
STAB is sodium triacetoxyborohydride. Why were you doing that in benzene though? STAB is usually pre ... |
15-12-2020 at 09:03
by: Antigua |
What temp does cinnamaldehyde boil at 10 torr?
You can use the nomograph to check that, so please do. You'll learn how to use it in the process - m ... |
13-12-2020 at 02:50
by: Antigua |
2020 Secret Santa [tell everyone how it went]
Package to my secret recipient should've already been delivered, please enjoy it!
|
9-12-2020 at 05:48
by: Antigua |
Di-alkylation of urea with aromatic aldehydes in dmso
Could you elaborate? I know that Zn/HCl system is okay for reducing imines, although quite dirty too ... |
6-12-2020 at 14:10
by: Antigua |
Help me identify a piece of equipment, please.
Exactly this: https://www.turnerdesigns.com/product-page/solid-secondary-standard
From what I under ... |
5-12-2020 at 09:31
by: Antigua |
Safe disposal of KCN
[rquote=650599&tid=156685&author=unionised][rquote=650595&tid=156685&author=vano.kav ... |
5-12-2020 at 07:20
by: Antigua |
Safe disposal of KCN
It's not complicated at all. This is the "official" procedure. If you use it correctly you're guaran ... |
5-12-2020 at 06:42
by: Antigua |
Safe disposal of KCN
From "Hazardous Laboratory Chemicals Disposal Guide" by Margaret-Ann Armour
[file]85026[/file]
... |
5-12-2020 at 06:37
by: Antigua |
Gunpowder (Potassium Chlorate) from Bleach
Now I watched the video and the german guy got 20% yield too. So what's wrong? You got the same awfu ... |
4-12-2020 at 09:06
by: Antigua |
Gunpowder (Potassium Chlorate) from Bleach
This reaction is notorious for very low yields. You should better look into chloride electrolysis if ... |
4-12-2020 at 05:02
by: Antigua |
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