WCL (Wet Chemistry Lab) sample |
WCL (Wet Chemistry Lab) sample |
Jun 25 2008, 12:18 AM
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#1
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Senior Member Group: Moderator Posts: 2785 Joined: 10-November 06 From: Pasadena, CA Member No.: 1345 |
We'll soon know what kinds of crops we can grow on Mars! Bonus, the fruits will be already freeze-dried!
Handy list of preferred pH's of common garden plants. -Mike -------------------- Some higher resolution images available at my photostream: http://www.flickr.com/photos/31678681@N07/
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Jun 26 2008, 07:44 PM
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#2
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Member Group: Members Posts: 524 Joined: 24-November 04 From: Heraklion, GR. Member No.: 112 |
High -OH does not have to be present in the original sample.
A simplified view : High pH means that the salts involved have a "weak acid" part, thus anions that form strong acids are probably low concentration in the sample: Cl-, Br-, I-, SO4--, NO3-, ClO3-, ClO4- As Mike said, CO3-- (carbonates) or any other weak acid would be a good candidate. Remember this is a real sample, with many salts probably present so common ions effects might also be present. Let's wait and hear what the Phoenix team's martian experts will say ! |
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