Abstract IF5 was prepared with I2 and F2 by gas-solid reaction, the flow rate of F2 is 28—30 L/min and reaction pressure is under -0.01 MPa. The influence of reaction temperature, molar ratio of reactants and adding amount of I2 were investigated. Results showed that the optimal conditions of preparing IF5 were: reaction temperature between 80—100 ℃, molar ratio of F2 to I2 is 6∶1, adding amount of I2 was 10 kg in 100 L reactor. Under these conditions，the biggest yield of IF5could reach 87.32% with purity of 99%.
2013, Vol. 30 
