Purity: 99% MIn Industrial Sodium Carbonate(Na2co3)99.2%min or 99%min,packing in 50kgs of bag The most import use in the manufacture of chemicals.and also, used as a relatively strong base in various settings an electrolyte. SODA ASH DENSEITEMSPECIFICATIONNa2CO399.2%MINCHLORIDE0.70%MAXFe0.0035%MAXWATER INSOLUBLE MATTER0.03%MAXLOSS ON IGNITON0.8%MAX SODA ASH LIGHTITEMSPECIFICATIONNa2CO398.8%MINCHLORIDE CONTENT0.9%MAXIron(Fe2O3)0.006%MAXWATER INSOLUBLE MATTER0.1%MAXFINENESS(180um residue on sieve)70.0%MIN