hydrogen sulphide; hydrogen sulfide; sulphuretted hydrogen; sulfuretted hydrogen
deuterium; heavy hydrogen
hydrogen economy; hydrogen energy based society
sodium bicarbonate (NaHCO3)
potassium bitartrate; potassium hydrogen tartrate; cream of tartar
nickel metal hydride (NiMH)
phosphine; phosphane; diphosphine; diphosphane; solid hydrogen phosphides (a yellow powder)
hydrogen economy; hydrogen energy based society
gray hydrogen; grey hydrogen