Estimating the intrinsic magnetic susceptibility in the normal state of LaO$_{0.5}$F$_{0.5}$BiS$_2$

We present magnetization and magnetic susceptbility data in LaO$_{0.5}$F$_{0.5}$BiS$_2$from 2.7 to 250 K tempratures and -4 to +4~T fields. The signal in very low-fields (10~Oe or less) is small and hard to measure accurately above the superconducting transition temperature ($T_c\sim$3~K). At higher fields, we observe that the high-temperature susceptibility is dominated by a paramagnetic component. Independent chemical analysis suggests that this component might come from Ce impurities contained in the starting materials. By analyzing the behavior of the magnetization as a function of field and temperature under the assumption of impurity contributions, we make an estimate of the intrinsic value of the susceptibility in the normal state of the material.