User contributions for 24.69.167.69

31 August 2012

• 21:3421:34, 31 August 2012 diff hist +16‎ Gadolinium ‎ I have 1/2 Kg Gd 99.99% pure: it has a certain dark yellowish cast, especially in sunlight - so I added "slightly bronze" to "silvery-white". (unknown metals can often be identified by their very subtle color differences. Dy is slightly more 'greyish')

25 August 2012

• 19:4719:47, 25 August 2012 diff hist +148‎ Gadolinium ‎ →‎Physical properties: I Mention that GdSiGe alloy transitions at a much lower temperature than pure Gd, and that another alloy, GdEr is used around the freezing point of water.

11 August 2012

• 05:4005:40, 11 August 2012 diff hist −67‎ Piezoelectricity ‎ →‎Synthetic ceramics: Zinc oxide is NOT Zn2O3 - Zn is always divalent. (One of the two under that has to be rong too.)

5 July 2012

• 19:4119:41, 5 July 2012 diff hist +390‎ Wikipedia:Articles for creation/Redirects ‎ →‎Redirect request: kiln brick: new section
• 19:3019:30, 5 July 2012 diff hist +181‎ Fire brick ‎ Added reference to insulating bricks and and common name 'kiln bricks', which are also used in electric kilns

2 March 2012

• 17:5817:58, 2 March 2012 diff hist +12‎ Alkaline battery ‎ →‎Chemistry: Aha, found the "°" symbol to paste in "e° = "
• 17:5017:50, 2 March 2012 diff hist +22‎ Alkaline battery ‎ →‎Chemistry: added the half reaction voltages.

31 December 2011

• 03:2303:23, 31 December 2011 diff hist +404‎ N Talk:Sb2S3 ‎ ←Created page with 'Antimony trisulfide redirects to a page with the mineral "Stibnite". Unlike most chemical articles, for example Sb2O3 or Sb2S5, this Sb2S3 article has a box at t...'

29 December 2011

• 22:3022:30, 29 December 2011 diff hist +547‎ Talk:Overpotential ‎ →‎overpotential table(s): new section