ABSTRACT - 578527 The disclosure relates to a container comprising hydrogen generating means to generate molecular hydrogen in a chemical reaction, wherein said hydrogen generating means includes an active substance which releases molecular hydrogen by reaction with moisture, said active substance being embedded and dispersed in a matrix which restricts the rate at which moisture can reach the active substance thereby reducing and controlling the rate of generation of molecular hydrogen, wherein said hydrogen generating means includes an active substance selected from sodium hydride, lithium hydride, potassium hydride, calcium hydride, magnesium hydride, sodium borohydride, lithium borohydride and polymeric silicon hydrides, wherein said container includes a catalyst which catalyzes a reaction between said molecular hydrogen and molecular oxygen, wherein said catalyst is selected from nickel boride, titanium carbide, titanium nitride and Group VIII metals.
