[meteorite-list] Water in space

[MexicoDoug at aol.com]

Chris P. wrote:

>It depends on what form the water is in. In the case of 
>meteorites, surely it is in various hydrates. It is far 
>easier to dry out a meteorite in the vacuum of space 
>than it is on the Earth, wouldn't you agree?
 
Hola Chris, List,

 
For unbound water: Not sure on that one either way with some of these  
primitive unaltered meteorites.  If an ordinary chondrite that reaches 1.0  AU from 
the Sun is at Minus 5 Centigrade in most of the core after being much  cooler 
in the Asteroid belt for most of its existence, something would have to  heat 
it at some point to get the water through the pores you mention, if not all  
would need to find an exit via sublimation.  In the case of Rumuruti I  think 
you are covered since the anisotropy indicates the meteoroid was probable  
heated above 350 C for long enough...
Saludos, Doug