The present invention relates to an acid-concentrated dialysis composition comprising a mixture of citric acid and citrate and having a pH of less than 3.0, wherein the total concentration of citrate is 35 mM to 450 mM, and the amount of citric acid is It relates to an acid-concentrated dialysis composition that exceeds 50% of the total concentration of citrate. The acid concentrated dialysis compositions will be combined to form a dialysis solution with a total citrate concentration of 1-6 mM.本発明は、クエン酸とクエン酸塩の混合物を含み、３．０未満のｐＨを有する酸濃縮透析組成物であって、クエン酸塩の全濃度が３５ｍＭ～４５０ｍＭであり、クエン酸の量がクエン酸塩の全濃度の５０％を超える酸濃縮透析組成物に関する。酸濃縮透析組成物は組み合わされてクエン酸塩の全濃度が１～６ｍＭの透析溶液を形成することになる。
