A process for preparing long-term stable buffer systems over acidic influences on magnesium basis Depot

Buffer system for introduction into rock salt or hard salt deposits, comprising 30 to 70 parts by weight, preferably 35 to 60 parts by weight brucite, 2 to 8 parts by weight, preferably 3 to 6 parts by weight of dolomitic, 1 to 30 parts by weight of rock salt and 20 to 50 parts by weight, preferably 30 to 40 parts by weight a saline solution containing MgCl