NOVELTY - The hydrogen-production installation has a reservoir tank for stocking aqueous solution of sodium chloride, an airtight reactor, a cooling channel, a low-temperature de-humidifier, and a gas collector. The reactor accommodates an aqueous solution of sodium chloride and a platinum-titanium net, and enables manufacture of hydrogen. The de-humidifier is a pipe connected to the reactor, and when the gas coming from hydrogen-production reaction is passed to the de-humidifier, steam included in gas is condensed and sunk.    USE - Installation is used for producing hydrogen from discarded material of magnesium (claimed) of domestic electrical appliances, computers, and motor vehicles. Hydrogen is used as fuel in exchange-type fuel cells.    ADVANTAGE - The installation economically produces hydrogen by spontaneous chemical reaction, without requiring excessive energy. Recycling of resources is enabled.    DETAILED DESCRIPTION - The hydrogen-production installation has a reservoir tank for stocking aqueous solution of sodium chloride, an airtight reactor, a cooling channel, a low-temperature de-humidifier, and a gas collector. The reactor accommodates an aqueous solution of sodium chloride and a platinum-titanium net, and enables manufacture of hydrogen. A motor is provided for injecting the aqueous solution of sodium chloride in the reservoir tank to the reactor. A pipe is connected between the reservoir tank and reactor, and a valve is provided for controlling the quantity of aqueous solution of sodium chloride supplied to the reactor. The cooling channel controls the temperature of aqueous solution in the reactor. The de-humidifier is a pipe connected to the reactor, and when the gas coming from hydrogen-production reaction is passed to the de-humidifier, steam included in gas is condensed and sunk. The gas collector is a pipe connected to the de-humidifier for collecting gas coming out from hydrogen-production reaction.    DESCRIPTION OF DRAWING(S) - The drawing shows the flowchart of the production method of hydrogen. (Drawing includes non-English language text)    Heating of discarded material (110)    Adhering of discarded material with net of platinum-titanium (120)    Supply of aqueous solution and net into reactor (130)    Setting of water level (150)    Introduction of gas into de-humidifier (160)