China plans to use the heavy weight good quality soda instead of the light weight alkali used extensively to develop the low salty and heavy light good quality soda that is the direction of the foundation chemical industry 国家计划逐步以重质或低盐重质纯碱代替目前大量使用的轻质纯碱,发展低盐重质纯碱是我国基础化学工业的方向。