Thermal Change of Magnesium Highpolyphosphate Coacervates
作者： Takao Umegaki , Yukihiro Nakayama , Takafumi Kanazawa
DOI: 10.1246/BCSJ.49.2105
关键词: Salt content 、 Thermal 、 Chemical engineering 、 Chemistry 、 Magnesium 、 Coacervate 、 Inorganic chemistry 、 Isothermal process 、 Sodium
摘要: The thermal change of magnesium highpolyphosphate coacervates with various sodium contents was studied by means DTA, TGA and high temperature X-ray diffraction technique. Most the highpolyphosphates in were degraded into hydrated orthophosphates up to about 100 °C, pyrophosphates tetrametaphosphates being formed at 200–300 °C 300–500 respectively. formation “X” (a mixture Mg2P2O7 MgNa2P4O12) lowered an increase content coacervate samples. Mg(H2PO4)2·2H2O, Mg(H2PO4)2, MgH2P2O7, Mg2P4O12 determined crystalline substances obtained isothermal heat treatment temperatures.
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