... ., LtdPackaging specification: 25Kg, 50Kg, 750Kg.3. Index of industrial production Index ItemExcellence GradeA GradeTotal amount of Alkali (Counted by ... .006%MaxWater Insoluble0.03%Max0.1%MaxTap density(Soda Ash Dense)0.9Min0.9MinParticle Size/180μm70Min65Min4. Function: ... making, refined petroleum, metallurgy and other chemical industries. soda ash light,industrial grade - sodium carbonate-99.2%min