TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Composition: The additive contains at least one metal cation preferably chosen from divalent zinc ion, divalent calcium ion, divalent magnesium ion, divalent tin ion, divalent nickel ion, divalent iron ion, trivalent iron ion, trivalent titanium ion, trivalent gallium ion, trivalent scandium ion, trivalent aluminum ion, trivalent yttrium ion, tetravalent titanium ion, tetravalent zirconium ion, tetravalent tin ion, trivalent lanthanum ion, tetravalent lanthanum ion, trivalent lutetium ion and tetravalent lutetium ion. The additive contains chloride, fluoride, bromide, nitrate, sulfate amide, bisulfate, acetate, butyrate, formate, lactate, malonate, pyruvate, tartrate or citrate of metal, preferably chosen from zirconium (IV) chloride, zirconium(IV) acetate, zirconium(IV) citrate, zirconium(IV) formate, titanium(III) chloride, iron(III) chloride, iron(III) acetate, iron(III) citrate, iron(III) formate, iron(II) chloride, magnesium chloride, magnesium acetate, magnesium citrate, magnesium formate, zinc chloride, zinc acetate, zinc citrate and zinc formate. The amount of additive based on total amount of the metal hydride is 2.5 mol% or less. The alkaline earth metal hydride includes magnesium hydride, calcium hydride, magnesium nickel hydride, magnesium iron hydride (Mg2FeH6), magnesium cobalt hydride (Mg2CoH5), magnesium-iron-cobalt hydride (Mg2(Fe1-xCox)Hy, where x is more than 0 and 1 or less, and y is more than 0 and 3 or less), magnesium hydride (Mgx1RE(1-x1)Hy1, where x1 is more than 0 and 1 or less, y1 is more than 0 and 3 or less, and RE is lanthanum or lutetium), and magnesium-transition metal hydride (Mgx1TM(1-x1)Hy1, where TM is transition metal). The composite material contains at least one phosphate, carbonate or sulfate capture reagent containing at least one bivalent anion, preferably water-soluble lithium, calcium, magnesium or iron salt. The apparatus contains zeolite or silica gel-based adsorber.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Composition: The aprotic organic substance has melting point of 25-95 degrees C, boiling point of more than 150 degrees C and vapor pressure of less than 10 Pa at 20 degrees C, and does not contain hydroxyl groups and primary and secondary amino groups. The aprotic organic substance contains aliphatic (un)branched hydrocarbon radicals. The aprotic organic substance contains 5-50 wt.% least one carboxylate. The composite material does not contain substance which releases hydroxyl ions and/or water. The aprotic organic substance is preferably chosen from 96 compounds e.g. 1,8-dimethyl octanedioate, 1,5-dipropyl pentanedioate, 1,7-diethyl heptanedioate, oxacyclotridecan-2-one and 1,4-dibutyl butanedioate.    TECHNOLOGY FOCUS - POLYMERS - Preferred Composition: The composite material is coated with butyl, epichlorohydrin, ethyl propylene, fluoro, chloroprene, chlorosulfate polyethylene, natural rubber, nitrile, perfluoro, polyurethane and/or silicone elastomer. The composite material further contains grinding aid e.g. stearic acid or isooctane, compression aid e.g. zinc stearate, graphite or wax, and/or hydrolysis property-improving material e.g. water-soluble polymer, preferably polyvinyl alcohol, starch or cellulose. The composite material contains chelating agent e.g. ethylenediaminetetraacetic acid or crown ether, and water-soluble polymer such as polyvinyl alcohol, starch and/or cellulose. The composite material contains microcrystalline cellulose or polyvinylpyrrolidone as binder and/or disintegrant, and moisture indicator.