The present study reports a simplified method to synthesize the nitrate for
ms of layered double hydroxides (LDHs). LDHs or anionic clays with Mg:Al ra
tios of 2:1, 2.5:1 and 3:1 and mostly containing nitrate anions were prepar
ed at 25 degrees C, 60 degrees C and 100 degrees C without controlled atmos
pheric conditions. The nitrate form of anionic clay is a potential candidat
e for the development of slow-release nitrate fertilizer. (C) 2000 Elsevier
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