Crossword clues for the word: SODAASH The word SODAASH has appeared as an answer to at least 9 crossword clues on different crossword puzzles. Crossword clues for SODAASH Showing 1 to 9 of 9 results Clue(s) Anhydrous sodium carbonate. Compound used in water softeners Crude sodium carbonate Na2CO3 Na2CO3 (chemical) Powder produced by the Solvay process Sodium carbonate in powder form Water-softening agent Water-softening compound