All Questions
20
questions
4
votes
0
answers
273
views
Exchange of Fluorine to Oxygen for Fluorophosphonic acid by silylating agents or other methods?
[Warning, long post!]
Dear all,
I am confronted with a seemingly easy transformation. I want to remove a fluorine atom at a fluor phosphonic acid salt. The usual method to achieve this is the basic ...
- 799
7
votes
2
answers
642
views
Question about the differences of white and grey NaH properties
We are having some problems with the next reaction in our lab. As you can see, is the sulfonylation of an indole in which we use NaH (60% dispersion in mineral oil) as a base. This reaction goes with ...
- 81
3
votes
0
answers
119
views
Hydrolyse Phosphonate diester to free phosphonic acid under relatively mild conditions?
I want to hydrolyse a phosphonic acid diethylester to the corresponding free phosphonic acid. In the literature, it is described, that usually strongly basic or acidic conditions are utilized to ...
- 799
-3
votes
1
answer
199
views
Production of sulphuric acid
To my knowledge, sulphuric acid is produced by complex industrial processes like contact process.
The following structure shows a sulphate ion.
I wonder why sulphuric acid cannot be produced through ...
- 557
0
votes
1
answer
591
views
Sodium acetate stoichiometry from baking soda and vinegar
I want to make sodium acetate from sodium bicarbonate and vinegar. I'm a bit stumped at calculating amounts of each reagent. I'm starting with 8% acetic acid vinegar. I was going to add, to 1 L of the ...
- 1
-4
votes
2
answers
94
views
Acid boric preparation [closed]
Is there a simple reaction to yield boric acid ($\ce{H3BO3}$) from boron trifluoride ($\ce{BF3}$)?
1
vote
0
answers
316
views
How concentrated does sulfuric acid need to be for nitric acid synthesis (H2SO4 + nitrate salt distillation)?
So I have a home lab setup and recently found myself in need of some nitric acid. I could just buy some, but I thought it would be a useful exercise to make my own. I have plenty of nitrate salts ...
- 11
-1
votes
1
answer
131
views
Too much leftover in zinc sulfate reaction?
I'm doing a reaction of zinc metal and sulfuric acid to get zinc sulfate. I've been trying to learn the chemistry lately so I tried to measure out correct molar amounts. My understanding from the ...
- 181
3
votes
1
answer
471
views
How to make aluminium monostearate?
Can I make aluminium monostearate $(\ce{C18H37AlO4};$ $\pu{344.472 g mol-1})$ by reaction between stearic acid $(\ce{C18H36O2};$ $\pu{284.484 g mol-1})$ and aluminium hydroxide $(\ce{Al(OH)3};$ $\pu{...
- 49
2
votes
1
answer
155
views
Can antimony pentafluoride be made by adding hydrogen fluoride to antimony trifluoride?
I was looking at how the strongest acid was made and I found something I did not understand. On the Wikipedia page for antimony trifluoride it shows the production of $\ce{SbF3}$ using $\ce{HF}$:
$$\...
- 173
1
vote
1
answer
1k
views
Evaporation of concentrated formic acid and semi-concentrated sulfuric acid at room temperature
I recently looked at a reaction where CO is synthesized using formic acid and sulfuric acid, which seems to be one of the easier to control reactions for this, and obviously ventilation etc is ...
- 23
3
votes
1
answer
388
views
Synthesis of Hydrogen Fluoride
At almost 300°C, $\ce{CaF2}$ reacts with sulfuric acid and this reaction produces $\ce{HF}$. Is there any way to make a relatively dilute (10-20%) hydrofluoric acid with $\ce{CaF2}$ as the source of ...
- 313
0
votes
1
answer
355
views
Why is moist hydrogen made to react with chlorine to give hydrogen chloride?
Moist hydrogen reacts with chlorine in diffused sunlight to give out hydrogen chloride. Why is moist hydrogen used? Why not dry hydrogen?
- 149
2
votes
0
answers
689
views
Deprotection (debenzoylation) of glucose (sacharide) using NaOMe leads to hydrolysis glucose
I have a problem removing the benzoyl groups of my glucose moiety using sodium methylate (standard procedure). Indeed, the benzoyl groups are removed. However, a significant amount of glucose gets ...
- 21
4
votes
1
answer
626
views
Why is ammonium chloride rather than an alkylammonium chloride salt the product of nucleophilic substitution of a chloroalkane by ammonia?
My textbook said that when an excess of ethanolic ammonia is heated with a haloalkane ($\ce{R-X}$) one should give the products as being $\ce{R-NH2}$ and $\ce{NH4Cl}$ as opposed to $\ce{RNH3Cl}$. I ...
- 41