Soda Ash (99.2%) ItemSpecificationResultSodium Carbonate(Na2CO3):99. 2% MIN99. 5%Chlorides(NaCl):0. 70% max0. 65%Iron(Fe):0. 0035max 0. 0034 Insoluble esubstance:0. 03% max0. 02%Loss on dry:0. 8% max0. 6%Space density of pile g/ml:0. 9% max(only for dense soda ash)0. 8%Particle size 180um meshive:70% min(only for dense soda ash)72%