重碳酸盐 Traditional form: 重碳酸鹽 Pinyin (reading): chóngtànsuānyán Definitions: bicarbonate Characters: 重 - heavy, weighty; to double, to repeat 碳 - carbon 酸 - tart, sour; spoiled; acid 盐 - salt Traditional characters: 重 - heavy, weighty; to double, to repeat 碳 - carbon 酸 - tart, sour; spoiled; acid 鹽 - salt