The purpose of the present invention is to provide a dialysis agent A, which is able to set the total acetate ion content in the dialysate to a low value, excellent in storage stability of glucose, able to reduce the acetic acid odor, and able to suppress the corrosion of the dialysate delivery system and the dialysis machine, as well as to provide a two pack type dialysis agent utilizing the dialysis agent A. In the dialysis agent A used in the preparation of a bicarbonate dialysate, which is used as one part of a two pack type dialysis agent, it becomes possible to prepare a bicarbonate dialysate having the total acetate ion concentration of between 2 mEq/L or more and less than 6 mEq/L by allowing to include glucose, acetic acid and acetate salt and to satisfy the molar ratio of 1:0.5 to 2 of acetic acid and acetate salt. Moreover, according to the dialysis agent A, in addition to the excellent stability of glucose, it is possible to reduce the acetic acid odor, and furthermore possible to suppress the corrosion of the dialysate delivery system and the dialysis machine.【課題】本発明の目的は、透析液中の総酢酸イオン含量を低い値に設定可能で、しかも保存安定性に優れ、酢酸臭を低減でき、透析液調製装置や透析装置の腐食を抑制できる透析用Ａ剤、及び当該透析用Ａ剤を利用した２剤型透析用剤を提供することである。【解決手段】重炭酸透析液の調製に使用される透析用Ａ剤において、酢酸及び酢酸塩を含有させ、且つ酢酸：酢酸塩のモル比が１：０．５～２を充足させることによって、総酢酸イオン濃度が２ｍＥｑ／Ｌ以上６ｍＥｑ／Ｌ未満となるように重炭酸透析液を調製可能になり、透析用Ａ剤中の成分の安定性が優れていることに加え、酢酸臭を低減でき、しかも透析液調製装置や透析装置の腐食を抑制できる。【選択図】なし
