55 lbs - Assay Dense Soda Ash

Soda Ash - (Na2CO3, Sodium Carbonate, Trona) Lab / Assay Grade For use as an assaying flux (or flux thinner) for melting or smelting gold and other precious metals. Soda Ash is a versatile product that can be produced inexpensively and used for a number of different applications. More properly known as sodium carbonate, soda ash is a sodium salt of carbonic acid. Sold by the 55 lbs (25kg) BAG