I understand the relation in baume in SG, however i still not understand about correlation between baume in sodium silicate... anyone can help.
I doubt that anyone can, because its hard to understand what your question is. Density is measure by a number of different scales -- g/cc, or Baume, or even Brix. There is no relation between measurement scale and any given compound that is the analyate. You have essentially asked: Water freezes at 32 °F, 0 °C and 273.15 K, what is the correlation in each case?