properties: soda ash is food additive inorganic salt, it is organic nitro compounds, with white odourless powder.ncompatiblewith powdered alkaline earth metals, aluminium, organic nitro compounds, fluorine, alkali metals, nonmetallic oxides, concentrated sulfuric acid, oxidesof phosphorus.it is organic nitro compounds, the full nameis sodium carbonate which is also called soda ash.according to the density, it can be soda ash light and soda ash dense. usage: baking powder, phadjustment, fungicide, microbiocide, herbicide. specification: item specifications total alkalinityas na2co3 (dry basis) 99.2% min. sodium chloride ( nacl) 0.7% max. iron as fe 0.0035% min. so4- 0.03% max. water insoluble 0.03% max.