Witherite method. Reaction equation: BaCO3 + 2NH4Cl → BaCl2 + 2NH3 + H2O + CO2 BaCL2 + (NH4) 2CO3 → BaCO3 ↓ + 2NH4Cl Operational method: 100 g 80% of toxic heavy powder (120 mesh) and 60g ammonium chloride is well mixed, it is rapidly put into 650℃ muffle furnace and react...
With conductivity measurement in different concentrations of barium chloride, sodium sulfate, sodium chloride solution, their concentration-conductivity equation is obtained. Through mathematical conversion, the relation between sulfuric acid root ion in the solution, barium ion conductivity and the ...
Reaction equation: BaCl2 + NH4HCO3 + NH4OH → BaCO3 ↓ + 2NH4Cl + H2O Operational method: At 30℃, 23.6L containing ammonium bicarbonate 56.1g /L aqueous solution and 1.36L ammonia is mixed in 50L kettle and then at 50℃, within 2h dropping 21.6L 200.3g/L barium chloride solution, it ...