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Ammonium hydroxide titration
Fery: Yes, you are right. Texium proposal method would create buffer, not yours. Because you are usi ... |
2-11-2022 at 01:46
by: Bedlasky |
Ammonium hydroxide titration
Fery, when you titrate ammonia with acid, you create a buffer, this doesn't give you clear end point ... |
1-11-2022 at 18:18
by: Bedlasky |
Moisture-preserving desiccant for storing borax primary standard
NaHCO3 is pretty much pure, it can be used directly as standard. |
31-10-2022 at 01:32
by: Bedlasky |
Osmium chemistry
[rquote=678044&tid=158875&author=vano]I will reduce it with thionyl chloride[/rquote]
Why ... |
30-10-2022 at 11:04
by: Bedlasky |
Ammonium Persulfate decomposition
[rquote=678013&tid=159029&author=RU_KLO]Could this be used to make ammonia solution? (or the ... |
29-10-2022 at 22:50
by: Bedlasky |
Cleaning chromium(III) oxide stains from a flat bottom flask
I don't have experience with this issue, but when I needed clean something from Fe(OH)3, oxalic acid ... |
29-10-2022 at 09:27
by: Bedlasky |
H2S solution for Qualitative Test
[rquote=677847&tid=159002&author=Fery]RU_KLO I have never tried the thioacetamide method, bu ... |
24-10-2022 at 16:18
by: Bedlasky |
Dibenzalacetone - Organic Synthesis writeup
I want to try titrations with BrCl and IBr solutions in chloroform. So I need some pure alkene.
I ... |
23-10-2022 at 10:05
by: Bedlasky |
Dibenzalacetone - Organic Synthesis writeup
[rquote=677817&tid=155256&author=Fery]Hi Bedlasky, nice experiment and very pure product acc ... |
23-10-2022 at 06:52
by: Bedlasky |
Dibenzalacetone - Organic Synthesis writeup
I tried this synthesis recently, I followed up this procedure:
[url]https://www.youtube.com/watch ... |
22-10-2022 at 19:44
by: Bedlasky |
H2S solution for Qualitative Test
You can use Na2S and acid. It is lot more practical. |
21-10-2022 at 18:20
by: Bedlasky |
Bugs Eat Plastic.....yeah
Few years ago I read about some bacteria eating PET. It decompose PET using some enzymes and ethylen ... |
17-10-2022 at 13:34
by: Bedlasky |
Pretty Pictures (2)
I found in mountains place with many red granites. They look really nice.
[file]95168[/file]
[ ... |
16-10-2022 at 16:24
by: Bedlasky |
Bromatometry
Thanks, Pumukli!
Yeah, analytical chemistry isn't often discussed here. I find bromatometry very ... |
8-10-2022 at 14:25
by: Bedlasky |
Drying extracted H3PO3 without oven
[rquote=677406&tid=158954&author=Yttrium2]Applie died. Post erased, prolly for the best. Wil ... |
6-10-2022 at 22:14
by: Bedlasky |
Alternative Ethanol Drying Agent
But don't forget that Na3PO4 is usually sell as dodecahydrate. |
4-10-2022 at 16:48
by: Bedlasky |
Amazing Cleaning By Vinegar/Bicarbonate of Metal Sink, But How?
Coins don't look dirty because of octenone. Yeah, it is responsible for smell, but not for ugly look ... |
4-10-2022 at 16:45
by: Bedlasky |
Bromatometry
Thanks Fery! Reaction is carried in huge excess of HCl, so disproportionation can't happen. |
4-10-2022 at 12:48
by: Bedlasky |
Reduction of permanganate by ascorbic acid → surprise!
You forgot metabisulfite.
2MnO2 + (S2O5)2- + 2H+ --> 2Mn2+ + 2(SO4)2- + H2O |
4-10-2022 at 02:48
by: Bedlasky |
Bromatometry
Hi!
Several months ago I played a lot with bromatometric titrations. I find them quite useful. So ... |
3-10-2022 at 19:52
by: Bedlasky |
Hydrochloric acid 32%
Yeah, but iron is still there. You introduce more contamination by reducing agent. |
3-10-2022 at 14:05
by: Bedlasky |
KCl.CdCl2 anhydrous
[rquote=677167&tid=158948&author=teodor]blogfast25,
download https://doi.org/10.1007/978 ... |
3-10-2022 at 13:14
by: Bedlasky |
Hydrochloric acid 32%
Hardware store HCl is usually contaminated with iron. Yellow is from Fe3+ ions, not from chlorine. |
3-10-2022 at 09:42
by: Bedlasky |
Drying Crystals without oven
Have you ever heard about desiccator and vacuum desiccator? |
2-10-2022 at 22:22
by: Bedlasky |
Drying extracted H3PO3 without oven
[rquote=677272&tid=158954&author=Yttrium2]Is H3PO3 a salt?[/rquote]
What do you think? An ... |
2-10-2022 at 22:19
by: Bedlasky |
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