John M. Feeney
Member
Roy and Lori:
An excellent and highly professional research paper! Thanks especially for tabulating the myriad possibilities for disintegration timeframes. One usually hears -- through the grapevine, at least -- only the extremes.
One question, which may forever date my chemical knowledge: In citing the "green rust" iron oxide sulfate complex as
Thanks!
An excellent and highly professional research paper! Thanks especially for tabulating the myriad possibilities for disintegration timeframes. One usually hears -- through the grapevine, at least -- only the extremes.
One question, which may forever date my chemical knowledge: In citing the "green rust" iron oxide sulfate complex as
(Fe[sup]+2[/sup][sub]3.6[/sub] Fe[sup]+3[/sup][sub]0.9[/sub] (O[sup]--[/sup], OH[sup]-[/sup], SO[sub]4[/sub][sup]--[/sup])[sub]9[/sub])
you employed what appears to be an empirical formula using fractional subscripts. Is this indeed the case, and if so, is this identical to (Fe[sup]+2[/sup][sub]4[/sub] Fe[sup]+3[/sup] (O[sup]--[/sup], OH[sup]-[/sup], SO[sub]4[/sub][sup]--[/sup])[sub]10[/sub]) ?
If so, can you advise what the significance of the decimalized subscripts is (or if not)? If the explanation is lengthy, just point me to the appropriate field -- biochem, etc. -- and I can probably locate a text. Thanks!