PROBLEM TO BE SOLVED: To provide a method for producing hydrogen water for drinking fillable into a PET bottle in which hydrogen hardly comes out from the PET bottle even when being filled into the PET bottle.SOLUTION: Calcium carbonate, calcium hydroxide and magnesium oxide are mixed with purified water to prepare a cloudy dispersion. Further, the cloudy dispersion is admixed with a phosphoric acid aqueous solution obtained by mixing phosphoric acid and purified water to obtain a mixed solution. The mixed solution is admixed with a citric acid aqueous solution obtained by mixing citric acid and purified water so as to be a colloidal acid aqueous solution. On the other hand, the acid aqueous solution is mixed with an alkali aqueous solution obtained by mixing potassium hydroxide, sodium hydroxide and purified water to produce a mixed solution whose pH lies in the range of 5 to 8. The mixed solution is further electrolyzed till the oxidation-reduction potential of cathode water reaches &le-500 mV to produce the stock solution of hydrogen water. Thereafter, the stock solution of hydrogen water is diluted by 80-120 times with mineral water.COPYRIGHT: (C)2012,JPO&INPIT【課題】ペットボトルに充填しても、該ペットボトルから水素がほとんど抜け出ることのないペットボトルに充填可能な飲用水素水の製造方法を提供する。【解決手段】炭酸カルシウム、水酸化カルシウムおよび酸化マグネシウムと精製水とを混合して白濁分散液を調製すると共に、該白濁分散液にリン酸と精製水を混合したリン酸水溶液を添加混合して得られた混合溶液に、クエン酸と精製水を混合したクエン酸水溶液を添加混合してコロイド状の酸性水溶液とする一方、該酸性水溶液に、水酸化カリウム、水酸化ナトリウムおよび精製水を混合して得られたアルカリ水溶液とを混合して、pHが5~8の範囲である混合溶液を製造し、更に前記混合溶液を、陰極水の酸化還元電位が-500mV以下になるまで電気分解して水素水原液を製造した後、該水素水原液をミネラルウォーターで80~120倍希釈する。【選択図】なし
