磷钼酸钠是化学物质，分子式是Mo12Na3O40P。Phosphomolybdenic acid， sodium salt; Trisodium 12-molybdophosphate; trisodium bis[[[[(oxido-dioxo-molybdenio)oxy-dioxo-molybdenio]oxy-dioxo-molybdenio]oxy-dioxo-molybdenio]oxy]phosphoryloxy-[[(oxido-dioxo-molybdenio)oxy-dioxo-molybdenio]oxy-dioxo-molybdenio]oxy-dioxo-molybdenum