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Synthesis and Regulation between NaH(ZnPO 4 ) 2 and α ‐Hopeite via a Solid State Reaction at Low‐heating Temperatures
Author(s) -
LIAO Sen,
TIAN XiaoZhen,
WU WenWei,
CHEN Xia,
WANG TianShun,
LI JiangTao
Publication year - 2008
Publication title -
chinese journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.28
H-Index - 41
eISSN - 1614-7065
pISSN - 1001-604X
DOI - 10.1002/cjoc.200890331
Subject(s) - chemistry , thermal stability , nuclear chemistry , raw material , dehydration , zinc , fourier transform infrared spectroscopy , solid state , inorganic chemistry , organic chemistry , chemical engineering , biochemistry , engineering
A simple and novel route for the synthesis of layered sodium hydrogen zinc phosphate, NaH(ZnPO 4 ) 2 , was studied, and the target product was obtained with Na 2 HPO 4 ·12H 2 O and Zn(NO 3 ) 2 ·6H 2 O as raw materials and polyethylene glycol‐400 as a surfactant via a one step solid state reaction at 60 °C. The product was characterized with XRD, TG/DTG and FTIR. The experimental results showed that the NaH(ZnPO 4 ) 2 had only one major step of weight loss for dehydration of HPO 4 2− into P 2 O 7 4− ions at around 500 °C, so it had enough thermal stability to use as heterogeneous catalyzer for organic reactions. The comparison experimental results suggested that aging temperature control the products of the synthesis, that is, the NaH(ZnPO 4 ) 2 was formed when the reaction mixture was aged at 60 °C, and the α ‐Zn 3 (PO 4 ) 2 ·4H 2 O was obtained when the reaction mixture was aged at room temperature.