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• Chemistry around the internet
  [http://woelen.homescience.net/science/chem/index.html Wilco Oelen (woelen): Science made alive]
  5 KB (707 words) - 20:20, 7 August 2023
• Editing guidelines
  ...re. Sciencemadness users [http://woelen.homescience.net/science/index.html woelen], and [http://labphoto.tumblr.com/ kristofvagyok] have given us permission
  6 KB (1,084 words) - 03:35, 4 August 2015
• Manganese heptoxide
  | ImageFile = Manganese heptoxide by woelen.jpg | ImageCaption = Freshly prepared manganese heptoxide. Photo by woelen.
  6 KB (711 words) - 16:33, 12 May 2019
• Potassium chlorate
  ...ne, like YT. Woelen's page also details this process very well.<ref>http://woelen.homescience.net/science/chem/exps/miniature_chlorate_cell/index.html</ref>
  9 KB (1,194 words) - 18:31, 3 February 2024
• Solvated electrons
  ...itrogenous solvents, most commonly liquid [[ammonia]]. Sciencemadness user woelen has found an easy method of producing solvated electrons using [[ethylenedi *[http://www.sciencemadness.org/talk/viewthread.php?tid=32593#pid342237 woelen makes solvated electrons with lithium and ethylenediamine]
  1 KB (144 words) - 13:32, 26 November 2022
• Lab photography
  [http://woelen.homescience.net/science/chem/misc/photography.html woelen's guide to photography in the lab]
  3 KB (610 words) - 21:35, 29 April 2018
• Sciencemadness Discussion Board
  ...um is restricted, and access must be asked of an administrator (Polverone, woelen or Bert). ...um is restricted, and access must be asked of an administrator (Polverone, woelen or Bert).
  4 KB (609 words) - 19:14, 26 July 2023
• Silicon
  |image name=Silicon by woelen.jpg |image name comment=2 samples of elemental silicon, image provided by woelen.
  11 KB (1,526 words) - 20:35, 22 July 2023
• Phosphorus pentachloride
  Phosphorus pentachloride is notoriously hard to store. Sciencemadness user woelen noted that PCl₅ tends to attack even teflon-lined caps over time
  8 KB (1,001 words) - 21:15, 22 October 2022
• Electron
  *[http://www.sciencemadness.org/talk/viewthread.php?tid=32593#pid342237 woelen makes solvated electrons with lithium and ethylenediamine]
  1 KB (156 words) - 17:05, 13 May 2019
• Hydroxylammonium perchlorate
  Woelen described the decomposition flame as blue.<ref>https://www.sciencemadness.o
  7 KB (859 words) - 19:38, 8 January 2020