TY - JOUR
T1 - Aging effect of starting solutions on wet-chemical powder preparation using ethanolic solution of oxalic acid
AU - Enomoto, Naoya
AU - Shiihara, Jun
AU - Hongo, Tadashi
AU - Nakagawa, Zenbe E.
PY - 1999
Y1 - 1999
N2 - When magnesium oxalate hydrates were precipitated by mixing ethanolic solutions of the metal nitrates and oxalic acid with addition of water, particular attention was paid to the age of the starting solutions, which had drastically influenced the precipitation behavior. For instance, the aging time of several days exponentially delayed the occurrence of the clouds in the solution, in other words, elongated the incubation period of the precipitation. Although the structural features in the aged solution have not yet been clarified by NMR, we believe that a visibly transparent solution is not always homogeneous, even if it looks stable for a long period.
AB - When magnesium oxalate hydrates were precipitated by mixing ethanolic solutions of the metal nitrates and oxalic acid with addition of water, particular attention was paid to the age of the starting solutions, which had drastically influenced the precipitation behavior. For instance, the aging time of several days exponentially delayed the occurrence of the clouds in the solution, in other words, elongated the incubation period of the precipitation. Although the structural features in the aged solution have not yet been clarified by NMR, we believe that a visibly transparent solution is not always homogeneous, even if it looks stable for a long period.
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U2 - 10.2109/jcersj.107.278
DO - 10.2109/jcersj.107.278
M3 - Article
AN - SCOPUS:0032655392
VL - 107
SP - 278
EP - 281
JO - Nippon Seramikkusu Kyokai Gakujutsu Ronbunshi/Journal of the Ceramic Society of Japan
JF - Nippon Seramikkusu Kyokai Gakujutsu Ronbunshi/Journal of the Ceramic Society of Japan
SN - 1882-0743
IS - 3
ER -