the inhibitor the foregoing test procedures are intended to simulate the corrosion rate on the steel pipeline wall which is not protected hence the blank defines the maximum rate of corrosion corrosion is normally given in mills per year mpy which refers to the rate at which the ferrous material in the pipe is removed and the pipe wall is thereby weakened the corrosion rate represents cumulative annual damage even if the pipe has substantial thickness corrosion over a period of time can not be tolerated however corrosion dooms the pipe to premature replacement without corrosion protection corrosion protection is highly desirable so that the pipe is not damaged prematurely well short of its intended service life the corrosion inhibitor of the present disclosure is intended to reduce the corrosion rate significantly so that the life of the pipe hence the pipeline is extended greatly the test data given in table 1 therefore include a corrosion rate for the blank prior to protection with the corrosion inhibitor the last column of table 1 lists the amount of protection that is accomplished by the inhibitor in every instance the exemplary composition from the eight examples listed above was combined with one mole equivalent of so 2 therefore a high level of protection was obtained this table does not include any examples combined with two or more mole equivalents of so 2 it is conjectured that the level of protection in.