The crossword solution for the term 'KIND OF ASH' is 'SODA'. SODA ash, also known as sodium carbonate, is a type of alkali salt that is used in a variety of industrial and consumer products. It is a white, odorless powder that is highly soluble in water and is used in glassmaking, soapmaking, paper production, and detergent manufacturing. It is also used in the food industry as a leavening agent and to adjust the pH of foods.