We are offering sodium carbonate.Packaging & deliverypackaging details: 25kgbagdelivery: 7 days after payments soda ash(sodium carbonate) cas no:497-18-8 spec's :dense and light content:99.2%minappearance: free flowing white crystal or granules certificat of analysisitems standards test resultsna2co3 % 99. 20min. 99.68nacl % 0.70max. 0.34fe % 0.0035max. 0.003water insolubles % 0.03max. 0.008 usagesoda ash is one of the basic materials for chemical industry, mainly used for metallurgy, glass, textile, dye printing, medicine, synthetic detergent, petroleum and food industry etc. advantage1) we are specializing in this product for more than 8 years2) we have a professional team who can provide you high quality products, competitive price and good service3) our products are hot sale in the gloabl market, e.g. America, germany, poland, chile, singapore, vietnam and so on