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US Pyrex kitchenware not Borosillicate glass!
I have a large collection of Pyrex pans and dishes that I use for chem all the time. Just because yo ... |
7-2-2017 at 09:55
by: Praxichys |
Latest chemical order?
250g Butylated hydroxytoluene
1 liter benzyl alcohol, USP
1 liter acetonitrile
1 liter cyclohexa ... |
6-2-2017 at 06:06
by: Praxichys |
Benzaldehyde synthesis using aqueous nitric acid
Since you have access, would it be possible for you to run GC/MS on the initial benzyl alcohol? I ha ... |
5-2-2017 at 10:17
by: Praxichys |
Nickel Chloride
Pretty much all the metal carbonates and hydroxides are difficult to filter by gravity. Before I use ... |
4-2-2017 at 11:23
by: Praxichys |
Bristol University students evacuated from chemistry school after 'unstable substance' made
This happens all the time where I work. Our system of education hones people to become test-takers. ... |
3-2-2017 at 11:17
by: Praxichys |
Bristol University students evacuated from chemistry school after 'unstable substance' made
Wow, incredible. Seems someone let hydrogen peroxide and acetone cross paths in a large way. I wonde ... |
3-2-2017 at 10:55
by: Praxichys |
Nickel Chloride
Melgar, that reminds me: Nickel tetracarbonyl can be prepared with nickel powder and carbon monoxide ... |
3-2-2017 at 06:21
by: Praxichys |
Nickel Chloride
You could add sodium bicarbonate or sodium carbonate to a solution of the nickel acetate. This will ... |
3-2-2017 at 05:21
by: Praxichys |
Unsure how to effectively filter nickle sludge and clean remaining residue from glasswear
Nickel metal is pretty resilient and is attacked only very slowly by non-oxidizing acids like sulfur ... |
2-2-2017 at 10:55
by: Praxichys |
Making the bigger brother of Chloropicrin - is the rxn. going as planned?
Yes, you absolutely need heat and pressure for this reaction to work. Your heating method is ineffec ... |
1-2-2017 at 10:04
by: Praxichys |
Benzyl Alcohol from Green Stripper
You probably won't be able to steam distill because the surfactants will cause foaming.
There is ... |
30-1-2017 at 11:24
by: Praxichys |
Temperature effect on drying solvents with salts - does temp effect speed or efficiency?
Indeed. Absorption of water changes the morphology of crystalline compounds, generally increasing th ... |
30-1-2017 at 10:37
by: Praxichys |
Temperature effect on drying solvents with salts - does temp effect speed or efficiency?
There are several factors that need to be considered. Higher temperatures increase brownian diffusio ... |
30-1-2017 at 05:54
by: Praxichys |
is there an ideal size for a liebig condenser for distillations?
Yeah, it's not good to use a graham on an angle. It causes pressure swings which lead to bumping, le ... |
28-1-2017 at 16:59
by: Praxichys |
is there an ideal size for a liebig condenser for distillations?
It's all a balance. Remember that the heat input you give the still pot has to be removed by the con ... |
28-1-2017 at 08:46
by: Praxichys |
How fast is drying with Magnesium Sulfate?
@ Lillica - Yes, sodium carbonate should also work although I have not personally tried it on ethyl ... |
28-1-2017 at 08:31
by: Praxichys |
How fast is drying with Magnesium Sulfate?
I would suggest not using MgSO4 for that. Ethyl acetate is not nearly as polar as water and can easi ... |
27-1-2017 at 18:51
by: Praxichys |
Hydroxyacetone via dehydration of glycerol
You can scrub acrolein easily with a cold, strong NaOH, KOH, or sodium bisulfite solution combined w ... |
27-1-2017 at 18:38
by: Praxichys |
Hydroxyacetone via dehydration of glycerol
The chromite catalyst and high heat will probably cause the hydroxyacetone to undergo an aldol conde ... |
27-1-2017 at 06:40
by: Praxichys |
V2O5+H2O+EDTA
I think EDTA will be awfully hard to oxidize. You're looking at elimination of CO2 as the pathway wh ... |
26-1-2017 at 10:32
by: Praxichys |
What does the capital Delta mean?
As far as I know there is only one isoxazoline. The "Δ" naming system seems to be clumsily (and inc ... |
26-1-2017 at 06:29
by: Praxichys |
Reaction of pyridine with [Cu(Cl)2(H2O)2] product is pyridine complex or the hydroxide ?
If you can isolate and dry a small amount of the suspected complex, heat it in a test tube over a fl ... |
23-1-2017 at 07:37
by: Praxichys |
Dirty 96% Sulfuric Acid
The easiest way is to add hydrogen peroxide and reconcentrate by boiling. The heat decomposes the ex ... |
20-1-2017 at 10:23
by: Praxichys |
How to adjust reflux ratio ?
The good news is that you don't need anything. You adjust the take off rate by adjusting the heat ap ... |
21-9-2016 at 10:23
by: Praxichys |
High-order flash powder?
There is more than velocity to consider when determining the output of an explosive.
The most imp ... |
16-9-2016 at 10:19
by: Praxichys |
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