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Bromine from KBr, MnO2 and hydrochloric acid
My second attempt for making elemental Br2 from these chemicals was rather succesful.
However, acco ...
18-11-2012 at 12:37
by: metalresearcher
Distilling HCl
I have 10% hardware store grade hydrochloric acid which I want to concentrate to 36%.
I can disti ...
21-10-2012 at 03:43
by: metalresearcher
Problem in Chlorate
Carbon anodes work well. Using a knifetip of K2Cr2O7 will keep the pH good and the temperature shoul ...
19-10-2012 at 11:03
by: metalresearcher
Does H2CO3 exist ?
According to this page http://en.wikipedia.org/wiki/H2CO3 this compound is hard to isolate if at all ...
16-10-2012 at 08:17
by: metalresearcher
What scale is this hydrometer ?
I have a hydrometer with a somewhat weird scale. Putting it in clear water it exactly levels to the ...
14-10-2012 at 02:11
by: metalresearcher
Make Potassium (from versuchschemie.de)
I also tried this method by using lamp oil and KOH + Mg shavings in it.
Heating 2 hours to 200ºC d ...
12-10-2012 at 12:14
by: metalresearcher
Very high boiling point determination: how is it done ?
Some elements have extreme high boiling points: Ta: 5400ºC, W: 5800ºC, Re: 5700ºC all hotter than ...
11-9-2012 at 08:46
by: metalresearcher
Which alloy (Au / Cu?) is this ?
I have a gold colored chain (color is similar to 18karat gold) and thought that it is not gold.
S ...
24-8-2012 at 23:56
by: metalresearcher
Video of spectra of arc melting
I made simultaneous video of arc melting metals with two cameras one equipped with a spectroscope.
...
23-4-2012 at 09:28
by: metalresearcher
Where can I get magnesia bricks ?
Looking for a furnace chamber for electric arc melting most refractories do not withstand the arc te ...
22-4-2012 at 04:05
by: metalresearcher
Melting MgO with electric arc is EASY !!
With an electric welder I made an arc which melted MgO rods like plastic ....
<iframe width="7 ...
19-4-2012 at 12:31
by: metalresearcher
Fumigation of hotel premises: is it harmful ?
During our stay (my gf and me) in Sanur, Bali we noted that every Saturday at 18:00 the hotel is fum ...
25-2-2012 at 04:10
by: metalresearcher
Making KClO3: cathode gets corroded ?
During an electrolyzing session of a saturated solution of Diet salt (2 parts KCl and 1 part NaCl) ...
29-1-2012 at 13:44
by: metalresearcher
KNO3 + candle wax => NO reaction ???
I was just curious. Mixing KNO3 with paraffin candle wax from crushed candles and lighting it.
NOTH ...
21-1-2012 at 13:57
by: metalresearcher
Mineral oil with density of 0.9 instead of 0.8?
[rquote=233126&tid=18544&author=Mr. Wizard]More double bonded carbons, and longer chain leng ...
14-1-2012 at 00:04
by: metalresearcher
Mineral oil with density of 0.9 instead of 0.8?
For potassium separation I am searching for an oil slightly heavier than K metal which has a density ...
13-1-2012 at 13:13
by: metalresearcher
Is 24/40 glassware joint compatible with NS29/32?
On [url=http://stores.ebay.co.uk/Labware-Superstore/_i.html?_fsub=375781019]ebay[/url] I found some ...
13-1-2012 at 12:34
by: metalresearcher
Fume hood ventilation is this right ?
Now I have for my fumehood duct of 10cm pipe a plastic $20 ventilator which works fine for most expe ...
11-1-2012 at 10:53
by: metalresearcher
Does sodium attack borosilicate glass ?
I heated reaction result of NaOH + Mg which contains Na metal under lamp oil to 200-300C in a borosi ...
10-1-2012 at 13:25
by: metalresearcher
Isolating Na metal from NaOH + Mg result ?
But then the Na will be in contact with the water at the border, so it will react, so I don't think ...
8-1-2012 at 12:47
by: metalresearcher
Isolating Na metal from NaOH + Mg result ?
As I have tried this more times before and posted it here, now I got some sodium metal by reacting N ...
8-1-2012 at 12:10
by: metalresearcher
Bike pump valves suitable for manual vacuum pump ?
I try to go under 0.1 bar or even 0.05 bar.
I managed once 0.08 bar (water boiled @ 40C) but could ...
8-1-2012 at 09:28
by: metalresearcher
Bike pump valves suitable for manual vacuum pump ?
Here I did a new test without a bike valve so I have to close the valve manually at every strike. Bu ...
7-1-2012 at 05:27
by: metalresearcher
Boiling metals Copper and Aluminum
I tried to heat these metals in an electric arc to boil them.
And it succeeded ....
<iframe ...
25-12-2011 at 03:48
by: metalresearcher
KNO3 + Al + other chems: flame color + speed
The Al is 600mesh (is that the same as dpi ?)
I tried with KClO3 (subgram amounts) and it reacted ...
20-12-2011 at 09:36
by: metalresearcher
[Next Page]
Sciencemadness Discussion Board
» Search
Select A Forum
Fundamentals
» Chemistry in General
» Organic Chemistry
» Beginnings
» Responsible Practices
» Miscellaneous
Engineering and Equipment
» Reagents and Apparatus Acquisition
» Electronics
» Process Engineering
» Materials and Metallurgy
Special Topics
» Analytical Chemistry
» Electrochemistry
» Energetic Materials
» Biochemistry
» Radiochemistry
» Computational Models and Techniques
Literature and Documentation
» Sciencemadness Wiki
» Prepublication
Non-science
» Forum Matters
» Legal and Societal Issues