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woelen

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1864
Joined
June 5, 2005
Last visited
August 25, 2009

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Common chemicals -- strange reaction

By woelen, February 21, 2006 in Inorganic Chemistry
- 3 replies
- 1234 views
Yet another nice experiment - selenium allotropes 1 2

By woelen, June 11, 2005 in Inorganic Chemistry
- 25 replies
- 7936 views
Polyhalide salt formation: KICl4

By woelen, January 12, 2006 in Inorganic Chemistry
- 2 replies
- 5348 views
Electrolysis with a niobium anode

By woelen, December 16, 2005 in Inorganic Chemistry
- 7 replies
- 2200 views
Nice experiment with bromine

By woelen, November 26, 2005 in Inorganic Chemistry
- 11 replies
- 4419 views
Electrolysis of halogenide solutions with graphite anode

By woelen, November 17, 2005 in Inorganic Chemistry
- 15 replies
- 2328 views
Pyro-related -- why not use KBrO3 as oxidizer

By woelen, November 10, 2005 in Inorganic Chemistry
- 15 replies
- 5247 views
Positive integer vectors from null space

By woelen, November 1, 2005 in Mathematics
- 0 replies
- 1920 views
Electrolysis with H2 gas at anode!

By woelen, October 25, 2005 in Inorganic Chemistry
- 5 replies
- 1617 views
Again a strange copper observation

By woelen, October 16, 2005 in Inorganic Chemistry
- 13 replies
- 5055 views
Making quaternary ammonium ions

By woelen, October 12, 2005 in Inorganic Chemistry
- 3 replies
- 1034 views
Overview of metal ions in water - precipitates

By woelen, October 6, 2005 in Inorganic Chemistry
- 1 reply
- 841 views
Color of potassium nitronate

By woelen, September 23, 2005 in Inorganic Chemistry
- 3 replies
- 1274 views
nitrosyl isothiocyanate

By woelen, September 14, 2005 in Inorganic Chemistry
- 0 replies
- 864 views
Interesting experiment with interhalogens

By woelen, September 4, 2005 in Inorganic Chemistry
- 3 replies
- 1809 views
A colored gas, containing chromium

By woelen, June 10, 2005 in Inorganic Chemistry
- 7 replies
- 2788 views
Location of zeros of truncated taylor series of exp(x)

By woelen, June 9, 2005 in Mathematics
- 0 replies
- 1318 views

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