The effect of ultrasonic on the crystallization of three kinds of ammonium tetramolybdates was studied.The crystalline, thermochemistry property and crystal morphology under ultrasonic were discussed.

• 研究了声场对3种不同结晶形态的四钼酸铵结晶过程的影响,揭示了声场对钼酸铵溶液结晶的晶型、热化学性质和晶体形貌的影响规律。