Details soda ash light items specification measured results total alkalinity(as na2co3 in dry base) % 99.2min 99.48 chloride content(as nacl) % 0.7 0.45 iron content(as fe in dry base) /% 0.0035 0.0011 sulphate content(as so4 in dry base) /% 0.03 0.011 bulk density /g/ml 0.61 water insoluble matter /% 0.03 0.009 soda ash dense items specification measured results total alkalinity(as na2co3 in dry base) /% 99.2 99.62 chloride content(as nacl) /% 0.7max 0.31 iron content(as fe in dry base) /% 0.0035max 0.0009 sulphate content(as so4 in dry base) /% 0.03max 0.018 water insoluble matter / % 0.03max 0.008 bulk density /g/ml 0.9-1.2 1.09 granularity up 180mm % e 70.0 86.7 loss on ignition% 0.8 max 0.69