纯碱 Traditional form: 純鹼 Pinyin (reading): chúnjiǎn Definitions: sodium carbonate; soda ash; Na2CO3 Characters: 纯 - pure, clean; simple, genuine 碱 - alkaline, alkali, lye, salt Traditional characters: 純 - pure, clean; simple, genuine 鹼 - alkaline, alkali, lye, salt