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Reducing sodium molybdate by nascent hydrogen
http://svetprvku.cz/12-prvky
Molybden - prášek
Čistota 99,9%
6 CZK (0,25 EUR) per 1 g
49 g in ... |
22-2-2020 at 00:06
by: Fery |
Azelaic acid
saponification:
102,5 g SOHO + 25,2 g 85% KOH + 100 ml 95% C2H5OH
[file]79480[/file] [file]7948 ... |
21-2-2020 at 11:53
by: Fery |
azelaic acid - most efficient method related to KMnO4
This experiment focused on squeezing KMnO4 as much as possible:
Oxidation was performed in 3 steps ... |
21-2-2020 at 10:14
by: Fery |
ethyl hexanoate - pineapple ester
65% yield (0,53 mol) calculated from the amount of hexanoic acid (0,81 mol)
ethanol added in 3-fold ... |
21-2-2020 at 00:40
by: Fery |
ethyl hexanoate - pineapple ester
this ester has more pleasant scent than [url=https://www.sciencemadness.org/whisper/viewthread.php?t ... |
20-2-2020 at 09:47
by: Fery |
ethyl butyrate - pineapple ester
I wanted to preform this synthesis decades ago but it was postponed till today, when my dream came t ... |
19-2-2020 at 10:02
by: Fery |
HCl gas generator for making (NH4)2[MoOCl5]
Those at room temperature - dehydrating 37% HCl using CaCl2 you mentioned or conc. H2SO4 works too. ... |
19-2-2020 at 05:19
by: Fery |
ISO Terbium
https://onyxmet.com/index.php?route=product/product&product_id=2715%22
46 EUR / 10 g |
19-2-2020 at 00:22
by: Fery |
Allyl Bromide Preparation
reactants
[file]79416[/file]
apparatus - !!! note the hose from the vacuum take-off adapt ... |
18-2-2020 at 04:04
by: Fery |
allyl alcohol preparation from glycerol + formic acid
Be very careful - allyl alcohol has significantly higher toxicity (pls read the pdf attached) than o ... |
18-2-2020 at 03:22
by: Fery |
Sodium permanganate
anti - what's a pity, here you could just enter the pharmacy and tell something like: I have a mycot ... |
18-2-2020 at 02:49
by: Fery |
Allyl Bromide Preparation
I would like to write my own opinion.
The inert gas is probably unnecessary. Seems water steam expe ... |
17-2-2020 at 12:58
by: Fery |
dissolving W in H2O2
Hi sbreheny, this is without thorium, the green color means pure 99,8% W.
I have also about half a ... |
17-2-2020 at 12:47
by: Fery |
Sodium permanganate
Maybe you can buy small amount like 20 g of KMnO4 in pharmacy. It is used to treat mycotic infection ... |
17-2-2020 at 12:35
by: Fery |
dissolving W in H2O2
Here my experiment - dissolving tungsten in hydrogen peroxide. Unfortunately there is no info about ... |
16-2-2020 at 04:14
by: Fery |
Tungsten compound
[rquote=541850&tid=96118&author=woelen]Pure tungsten dissolves in 10% H2O2 fairly easily, no ... |
16-2-2020 at 03:12
by: Fery |
Tungsten metal plus piranha solution?
I've just finished some experiments and my opinion is that ammonia speeds up H2O2 decomposition.
Yo ... |
16-2-2020 at 02:55
by: Fery |
Ni(IV) - periodatonickelates
woelen and Tdep, if you are interested in NaBrO[sub]4[/sub] then it is easier to separate it when re ... |
11-2-2020 at 03:52
by: Fery |
photos
reactants - KIO4, NiSO4 . 6 H2O, K2S2O8
[file]79250[/file]
3,0 g KIO4 + 500 ml H2O + 2,0 ... |
10-2-2020 at 08:57
by: Fery |
Ni(IV) - periodatonickelates
KNiIO6 . 1/2 H2O
Dissolve 3,0 g KIO4 in 500 ml boiling water in 1 l Erlenmayer flask, then add 2,0 ... |
10-2-2020 at 08:42
by: Fery |
photos
48% HBr + 0,10 g CuO
[file]79158[/file] [file]79160[/file]
after adding 1,00 g CuO totall ... |
7-2-2020 at 08:25
by: Fery |
KBr.CuBr2 double salt aka KCuBr3
I found this info about 1 year ago:
http://copper.atomistry.com/cupric_bromide.html
[quote]double ... |
7-2-2020 at 08:09
by: Fery |
anomalies in chemistry
Please post here anomalies in chemistry.
Searching the forum, I found only this one post concerin ... |
7-2-2020 at 04:55
by: Fery |
Divalent chromium
Hi Bedlasky here a small gift for you. I did the synthesis a long long long ago (prep for IChO).
Ev ... |
7-2-2020 at 03:04
by: Fery |
Red Phosphorus Source
back to the topic - I have to recommend onyxmet.com
courier delivered my parcel the 4th day (it cou ... |
7-2-2020 at 02:12
by: Fery |
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