By Purity of Purest Sample (120)

Here are the elements sorted in order of the purity of the most pure sample of each. In some cases the purity is accurately known, either from the original supplier in case of samples from chemical companies, or because I've had it measured. But in many cases it's not much more than an educated guess. For the small number of salts and other compounds, I've been pretty sloppy in estimating the percentage of the element in the compound: It could of course easily be calculated based on the chemical formula and atomic weights.
I currently have a total of 2379 samples representing 118 different elements.

Click any element tile below to get the full entry for that element, or click on the sample picture to go directly to the description of that sample.

Text and images Copyright (c) 2010 by Theodore W. Gray.
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Oxygen
Oxygen Sample from the RGB Set
(99.9%)

Source: Max Whitby of RGB
Contributor: Max Whitby of RGB
Acquired: 25 January, 2003
Text Updated: 11 August, 2007
Price: Donated
Size: 0.2"
Purity: 99.9%
Magnesium
Magnesium Crystal
(99.9%)

Source: Warut Roonguthai
Contributor: Warut Roonguthai
Acquired: 5 November, 2005
Text Updated: 7 April, 2009
Price: Donated
Size: 2.5"
Purity: 99.9%
Chlorine
Chlorine Gas in a bulb
(99.9%)

Source: Tryggvi Emilsson and Timothy Brumleve
Contributor: Tryggvi Emilsson and Timothy Brumleve
Acquired: 21 September, 2002
Text Updated: 4 May, 2007
Price: Donated
Size: 3"
Purity: 99.9%
Potassium
Potassium Super-clean potassium
(99.9%)

Source: Anonymous
Contributor: Anonymous
Acquired: 17 April, 2009
Text Updated: 17 April, 2009
Price: None
Size: 2"
Purity: >99.9%
Calcium
Calcium High-purity calcium nodules
(99.9%)

Source: Anonymous
Contributor: Anonymous
Acquired: 31 October, 2009
Text Updated: 31 October, 2009
Price: Donated
Size: 3"
Purity: >99.9%
Vanadium
Vanadium Funny melted blob
(99.9%)

Source: Ethan Currens
Contributor: Ethan Currens
Acquired: 30 April, 2008
Text Updated: 30 April, 2008
Price: Anonymous
Size: 1"
Purity: 99.9%
Bromine
Bromine Gas in a bulb
(99.9%)

Source: Tryggvi Emilsson and Timothy Brumleve
Contributor: Tryggvi Emilsson and Timothy Brumleve
Acquired: 21 September, 2002
Text Updated: 4 May, 2007
Price: Donated
Size: 3"
Purity: 99.9%
Rubidium
Rubidium Rubidium time standard exciter
(99.9%)

Source: eBay seller nhbbobb1985
Contributor: Theodore Gray
Acquired: 19 November, 2008
Text Updated: 10 January, 2009
Price: $38
Size: 0.75"
Purity: 99.9%
Rhodium
Rhodium Longer, thicker wire
(99.9%)

Source: Tryggvi Emilsson and Timothy Brumleve
Contributor: Tryggvi Emilsson and Timothy Brumleve
Acquired: 21 September, 2002
Price: Donated
Size: 1"
Purity: 99.9%
Antimony
Antimony Link in multi-metal chain
(99.9%)

Source: www.theantimonyman.com
Contributor: Theodore Gray
Acquired: 9 August, 2003
Text Updated: 20 February, 2006
Price: $1/pound
Size: 3"
Purity: 99.9%
Sample Group: Multi-metal Chain
Barium
Barium Very pure barium
(99.9%)

Source: Anonymous
Contributor: Anonymous
Acquired: 17 April, 2009
Text Updated: 17 April, 2009
Price: None
Size: 0.5"
Purity: >99.9%
Gadolinium
Gadolinium Hollow cathode lamp
(99.9%)

Source: eBay seller heruur
Contributor: Theodore Gray
Acquired: 24 December, 2003
Price: $20
Size: 8"
Purity: 99.9%
Sample Group: Atomic Emission Lamps
Holmium
Holmium Poster sample
(99.9%)

Source: Max Whitby of RGB
Contributor: Max Whitby of RGB
Acquired: 20 December, 2002
Text Updated: 4 May, 2007
Price: Donated
Size: 0.5"
Purity: 99.9%
Erbium
Erbium Torn ingot of erbium
(99.9%)

Source: Ethan Currens
Contributor: Ethan Currens
Acquired: 21 March, 2008
Text Updated: 21 March, 2008
Price: Anonymous
Size: 1.5"
Purity: 99.9%
Ytterbium
Ytterbium Hollow cathode lamp
(99.9%)

Source: eBay seller heruur
Contributor: Theodore Gray
Acquired: 24 December, 2003
Price: $20
Size: 8"
Purity: 99.9%
Sample Group: Atomic Emission Lamps
Thorium
Thorium Scary stuff
(99.9%)

Source: Tryggvi Emilsson and Timothy Brumleve
Contributor: Tryggvi Emilsson and Timothy Brumleve
Acquired: 6 September, 2002
Price: Donated
Size: 1"
Purity: 99.9%
Uranium
Uranium Depleted uranium for sale
(99.9%)

Source: United Nuclear
Contributor: United Nuclear
Acquired: 11 April, 2005
Text Updated: 19 May, 2007
Price: Donated
Size: 0.75"
Purity: 99.9%
Promethium
Promethium Sample from the RGB Set
(99.5%)

Source: Max Whitby of RGB
Contributor: Max Whitby of RGB
Acquired: 25 January, 2003
Text Updated: 11 August, 2007
Price: Donated
Size: 0.2"
Purity: 99.5%
Lithium
Lithium Sample from the RGB Set
(99.4%)

Source: Max Whitby of RGB
Contributor: Max Whitby of RGB
Acquired: 25 January, 2003
Text Updated: 11 August, 2007
Price: Donated
Size: 0.2"
Purity: 99.4%
Lanthanum
Lanthanum Sample from the RGB Set
(99.4%)

Source: Max Whitby of RGB
Contributor: Max Whitby of RGB
Acquired: 25 January, 2003
Text Updated: 11 August, 2007
Price: Donated
Size: 0.2"
Purity: 99.4%
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