- #1
Peter Dow
- 29
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I have noted big disagreements of a scale of hundreds of degrees centigrade in published values for the boiling temperature of chemical elements such as tin and gallium.
For example,
Tin
http://en.wikipedia.org/wiki/Tin" - 2602 °C, 2875 K,
http://www.chemicalelements.com/elements/sn.html" - 2270.0°C, 2543.15 K
which agrees with one of my textbooks
Penguin Dictionary of Chemistry - 2270°C
but not the other
Chemistry, Molecules, Matter and Change - 2720°C
Gallium
http://en.wikipedia.org/wiki/Gallium" - 2204 °C, 2477 K,
http://www.chemicalelements.com/elements/ga.html" 2403.0 °C, 2676.15 K
which agrees with one of my textbooks
Penguin Dictionary of Chemistry - 2403 °C
but not the other
Chemistry, Molecules, Matter and Change - 2070 °C
Of course I am wondering why the different values - errors by the authors of books or websites or genuine disagreements between scientists as to the values?
Which source do people recommend as the most reliable source of accurate boiling temperature information and why?
For example,
Tin
http://en.wikipedia.org/wiki/Tin" - 2602 °C, 2875 K,
http://www.chemicalelements.com/elements/sn.html" - 2270.0°C, 2543.15 K
which agrees with one of my textbooks
Penguin Dictionary of Chemistry - 2270°C
but not the other
Chemistry, Molecules, Matter and Change - 2720°C
Gallium
http://en.wikipedia.org/wiki/Gallium" - 2204 °C, 2477 K,
http://www.chemicalelements.com/elements/ga.html" 2403.0 °C, 2676.15 K
which agrees with one of my textbooks
Penguin Dictionary of Chemistry - 2403 °C
but not the other
Chemistry, Molecules, Matter and Change - 2070 °C
Of course I am wondering why the different values - errors by the authors of books or websites or genuine disagreements between scientists as to the values?
Which source do people recommend as the most reliable source of accurate boiling temperature information and why?
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