The use of the term hydrate is still acceptable e.g. NaSO10HO, sodium sulfate decahydrate. The recommended method would be to name it sodium sulfate—water(1/10). Similarly other examples of lattice compounds are:
*CaCl8NH, calcium chloride— ammonia (1/8)
*2NaCO3HO, sodium carbonate—hydrogen peroxide (2/3)
*AlCl4EtOH, aluminium chloride—ethanol (1/4)