【摘要】 为探索鉴别Ⅰ -型和Ⅱ -型聚磷酸铵产品结构的有效方法 ,测定了用X -射线衍射法确定为Ⅰ -型和Ⅱ -型的聚磷酸铵的红外光谱 ,结果发现Ⅰ -型和Ⅱ -型聚磷酸铵晶体在红外光谱中存在明显的区别 :Ⅰ -型聚磷酸铵在 76 0、6 80、6 0 0cm- 1 附近出现吸收峰 ,而Ⅱ -型聚磷酸铵在这三处不出现吸收峰。从而确定了使用红外光谱法测定Ⅰ -型和Ⅱ -型聚磷酸铵晶体结构的可行性。更多还原

【Abstract】 IR spectra of crystalline formⅠand formⅡof ammonium polyphosphates products was determined by X-ray diffraction for exploiting an effective method for distinguishing crystalline formⅠfrom formⅡ.The results demonstrated that there was distinct difference in IR spectra for crystalline formⅠand formⅡof ammonium polyphosphates. The formⅠshowed three peaks at 760, 680 and 600 cm -1 in IR spectra, where the formⅡdid not emerge any peak. It is feasible to detect crystalline formⅠand formⅡof ammonium polyphosphates products by IR spectra method.更多还原