|This article is of interest to the following WikiProjects:|
citations needed for studies
I've tagged this article for cleanup, and considering it's rated B-class, I figure I'd better be specific as to why I think it needs cleaning up:
- Structure is pretty sketchy and disorganized. It strikes me that the sections "Preparation", "Uses", "Medical applications", "Molecular structure" and "Chemical properties" should all be condensed into one or two sections.
- Citations are light, for example in the Uses section.
- Uses section should be a lot more specific
- There should be more info on the use of this compound as a method of intentional poisoning
Marked volatility of dimer
"In the liquid and gas phase below 800 °C, arsenic trioxide has the formula As4O6 and is isostructural with P4O6. Above 800 °C As4O6 significantly dissociates into molecular As2O3, which adopts the same structure as N2O3."
Molar mass of As4O6 is really high (about 395.682). Qoutient (sulblimation point in Kelvins / molar mass) is very low as a typical metalloid oxide (about 1,86, 738 / 395.862), even lower than the same quotient for carbon monoxide (82 K, 28.010 g/mol - quotient is about 2,92). For carbon dioxide and carbon suboxide that quotient is above 4. Carbon oxides are known for their volatility.