The static dielectric function epsilon(q, 0) of the molten copper hali
des at two temperatures near melting are obtained in the hypernetted c
hain approximation using the effective pair potentials constructed by
Stafford et al and their behaviour related to the onset of freezing. T
he epsilon(q, 0) results for the copper halides are found to mimic the
behaviour of the classical one-component plasma with plasma parameter
Gamma = 90.