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Determine H2O2 % by density
Or you just can titrate with some KMnO4 to get the exact concentration and see how accurate the valu ...
29-3-2022 at 07:06
by: maldi-tof
Somewhat Unusual Properties of Ammonium Benzoate
I noticed that when I was doing the development of this product for my company.
What was incredible ...
29-3-2022 at 07:01
by: maldi-tof
Report on making chromium chloride CrCl3.6H2O
If you add H2O2 to your CrO3 and HCl, you will get CrCl3. The key point here is the concentration/cr ...
15-9-2021 at 22:04
by: maldi-tof
Chemical purity grade food
It has to do not only with the "purity" (assay), but for the possible impurities.
For example, many ...
16-8-2021 at 22:47
by: maldi-tof
Technical sodium molybdate
One source that we have for sodium molybdate 2-hydrate has 0.01% of arsenic (100 ppm).
If it is a " ...
16-8-2021 at 03:26
by: maldi-tof
Frustration with trying to make ammonium formate
I made some mixing formic acid with anydrous NH3.
If you want to crystallize, you only need to conc ...
16-8-2021 at 01:34
by: maldi-tof
Technical sodium molybdate
Typical impurities for sodium molybdate are arsenic and potassium.
You can "check" at least if it i ...
16-8-2021 at 01:21
by: maldi-tof
antimony trioxide
[rquote=662435&tid=157668&author=Texium]You can make potassium antimony tartrate, an interes ...
4-7-2021 at 14:32
by: maldi-tof
Making sodium citrate
Which citrate were you trying to synthesize? tri-sodium citrate, di-sodium hydrogencitrate or sodium ...
14-6-2021 at 12:04
by: maldi-tof
Potentiometric titrations issues
For example, assay of sodium fluoride and sodium citrates are tested against HClO4.

I can't reme ...
9-6-2021 at 03:54
by: maldi-tof
TLC results interpretation
About benzyl alcohol, as it has been told here, benzaldehyde is the main impurity.
However, benzald ...
8-6-2021 at 11:35
by: maldi-tof
How to dry recrystallized KNO3?
The information I know about KNO3 is that it is not hygroscopic, but it will cake badly.

I have d ...
8-6-2021 at 11:24
by: maldi-tof
How do I recrystallize ferric chloride?
I have obtained many times FeCl3 6-hydrate using a rotary evaporator.
The synthesis is quite easy, ...
8-6-2021 at 11:20
by: maldi-tof
Potentiometric titrations issues
Try to add some acetic anhydride. It will "capture" some water to form more acetic acid, and maybe y ...
8-6-2021 at 11:15
by: maldi-tof
Phenol crystals
[rquote=630463&tid=154805&author=Tsjerk]It melts at 41, shouldn't you want a solid? I would ...
5-2-2020 at 13:49
by: maldi-tof
Phenol crystals
I'll try cooling It down slowly.

3-2-2020 at 13:28
by: maldi-tof
Phenol crystals

Recently, I have distilled some phenol in order to purify it, and also see how my new rotary ...
2-2-2020 at 07:17
by: maldi-tof
Short question / quick answer - Thread
[rquote=613414&tid=26572&author=Simoski]Are any copper salts fat soluble?

May not seem li ...
16-6-2019 at 13:58
by: maldi-tof
How to clean a separatory funnel?
When I have some dirty glassware that seems impossible to clean, I always try with aqua regia, and i ...
16-6-2019 at 13:38
by: maldi-tof
Any way to prepare anhydrous ZnCl2 without using gaseous Cl2 or HCl?
There is a patent (if you search it you will find it easily), where NH3 (g) is bubbled through a sol ...
16-6-2019 at 13:33
by: maldi-tof
Making videos for YouTube. Suggestions?
Formation of complex are very colourful, it may like some future chemists.
If you mix those with Ta ...
16-6-2019 at 13:28
by: maldi-tof
adjusting ph problems
I donĀ“t know what kind of synthesis are you trying, but sometimes if you are using HCl, boiling the ...
28-4-2019 at 01:21
by: maldi-tof
Please give me the most accurate Ksp data
[rquote=610253&tid=148612&author=fusso][rquote=610252&tid=148612&author=maldi-tof]I ...
25-4-2019 at 10:40
by: maldi-tof
Please give me the most accurate Ksp data
I use the data from CRC Handbook of Chemistry and Physics. I suposse it can be "obtainable".
There, ...
24-4-2019 at 08:27
by: maldi-tof
Hi! New member
Mostly, inorganic salts. All kind of sulphates (sodium, potassium, iron, zinc, copper..), chlorides, ...
4-4-2019 at 15:35
by: maldi-tof
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