Sciencemadness Discussion Board
Not logged in [Login ]
Go To Bottom

Search
[Next Page]
From the Wiki: CaSO4 + SiO2 -> SO3 + CaSiO3. Does this actually work?
This was done at Whitehaven in the UK, google on it plus "sulphuric acid" you'll get lots of hits. ...
20-1-2020 at 16:48
by: annaandherdad
Acetate Salts From Vinegar For Synthesis of Acetic Acid
I bought some washing soda as a cheap source of sodium carbonate. When I dissolve it in water it m ...
10-1-2020 at 18:14
by: annaandherdad
Gassing myself with hydrogen sulphide...
I took a course in qualitative analysis in 1963. We used H2S to precipitate sulfides to help ident ...
7-1-2020 at 11:16
by: annaandherdad
Radium,actinium,polonium and radon glow
Yes, if you take any substance and heat it enough you will get a fully ionized plasma in which the a ...
31-12-2019 at 09:03
by: annaandherdad
Radium,actinium,polonium and radon glow
There are mechanisms by which a radioactive substance can produce light without surrounding gas. T ...
30-12-2019 at 07:48
by: annaandherdad
Vinegar to Glacial Acetic Acid Via Charcoal
[rquote=62623&tid=5528&author=jack-sparrow]
By the way, "natural" is a very confusing word ...
25-12-2019 at 08:50
by: annaandherdad
Scientists find possible ‘fifth force of nature’?
Here is the article:
https://arxiv.org/pdf/1910.10459.pdf
The result is primarily experimental, wi ...
25-11-2019 at 09:44
by: annaandherdad
Hydrochloric acid separation
This same topic was the subject of a recent thread:
http://www.sciencemadness.org/talk/viewthread.p ...
23-11-2019 at 13:23
by: annaandherdad
Igniting metals vs. flame test
I have a suggestion for someone with a spectrometer. Just make a strong sodium flame and look at i ...
16-11-2019 at 18:22
by: annaandherdad
Igniting metals vs. flame test
The characteristic colors are dominated by one spectral line, for example, the yellow sodium D line ...
16-11-2019 at 15:48
by: annaandherdad
Igniting metals vs. flame test
That's my point, the ions don't produce the 671 nanometer crimson line, neutral atoms do.

The ...
16-11-2019 at 14:10
by: annaandherdad
Igniting metals vs. flame test
Well to be precise the flame color is caused by a variety of spectral lines with a variety of intens ...
15-11-2019 at 21:45
by: annaandherdad
Archive of permanently deleted nile red videos not even available on patreon
I was one of the 1.4k viewers and I was impressed by the amount of work you put into the project, yo ...
14-11-2019 at 15:04
by: annaandherdad
H2SO4 on an extreme budget?
Anyone thinking of making sulfuric acid from sulfur or SO2 should search this site for "oleum", "su ...
10-11-2019 at 17:19
by: annaandherdad
Autoignition temperature of mixed gases
For what it's worth, He has about 2.6 the thermal velocity of N2, at the same T.

I've wondered ...
10-11-2019 at 17:10
by: annaandherdad
Igniting metals vs. flame test
I want to point out that the crimson color in the lithium flame test comes from neutral lithium atom ...
6-11-2019 at 20:56
by: annaandherdad
Capturing radon to observe decay
Check out a video on youtube by bionerd23, a German woman who makes videos about radioactivity. Sh ...
26-10-2019 at 19:39
by: annaandherdad
Change in weight due to the moons gravity.
The manner in which the moon moves into a higher orbit, due to a component of the force vector in th ...
24-10-2019 at 20:39
by: annaandherdad
Change in weight due to the moons gravity.
Yes, as the moon moves outward its angular velocity omega decreases but the radius r increases. T ...
24-10-2019 at 11:43
by: annaandherdad
Change in weight due to the moons gravity.
Correction to my last post: As the moon recedes from the earth, its gravitational potential energy ...
24-10-2019 at 09:08
by: annaandherdad
Change in weight due to the moons gravity.
The web article cited by Twospoons has a number of inaccuracies. For example, it says that the tida ...
24-10-2019 at 06:27
by: annaandherdad
Change in weight due to the moons gravity.
You guys are missing the fact that the moon's effect on the earth is *tidal*, that is, the moon pull ...
23-10-2019 at 08:32
by: annaandherdad
Change in weight due to the moons gravity.
Is this intended to be a question? If it is, then there is probably an answer (it depends on preci ...
22-10-2019 at 09:36
by: annaandherdad
Lithium salt red fire
I hope to add something of interest to this old thread. My daughter has been doing the flame test ...
19-10-2019 at 07:59
by: annaandherdad
Any other calcium salt from Calcium Sulfate?
This discussion is relevant to some fun I had with some kids, evaporating sea water.

CaSO4 has lo ...
5-9-2019 at 09:06
by: annaandherdad
[Next Page]

  Go To Top