Image Details
Caption: Figure 2.
Photographs of the samples at (a) pH = 9 immediately after starting vacuum pumping and (b) pH = 9 after 18 hr of vacuum pumping; and (c) pH = 11 immediately after starting vacuum pumping and (d) pH = 11 after 18 hr of vacuum pumping. The sample holder is 5 cm in diameter.
© 2026. The Author(s). Published by the American Astronomical Society.