【摘要】 研究了超声波对制备仲钨酸铵晶体的影响,探讨了超声波对仲钨酸铵的结晶时间、晶体粒度和晶型的影响。试验表明:超声波缩短了仲钨酸铵结晶的时间;超声波作用下制备的仲钨酸铵晶体粒度更小,分布更均匀;超声波并没有改变仲钨酸铵晶体的晶型,但所得到的晶体的d值与文献d值吻合更好,表明超声波有利于仲钨酸铵晶体的制备。更多还原

【Abstract】 The effect of ultrasonic on the crystals of ammonium paratungstate(APT) was investigated.Crystalline growth rate,crystalline particle and the crystalline style were discussed respectively.The results show that the effect of ultrasonic on ammonium tungstate was evident.Ultrasonic shortened the induction period of crystal nucleus.Distributing of crystalline granularity with ultrasonic became narrower and the crystal was more homogeneous.Ultrasonic had no effects on the crystalline styles of APT.The d value with ultrasonic is more tallied with that in the past studies.It proves that ultrasonic is beneficial to preparing APT crystals.更多还原