Inhibiting scale deposition from salt-contg. water - by adding 1,2-di:phosphono-succinic acid or salt thereof before heating

摘要

acid, (I), or a salt thereof, partic an Na salt, is added to salt solns before heating, to prevent esp Ca- and/or Mg-contg alkaline incrustation or pptn from heated, strong salt-contg waters, esp brackish- or sea-water. (I) and its salts combine high scale inhibition and resistance to hydrolysis above 95 deg C.