抄録
In continuing the previous report (Part 1), the authors reported the studies on the methods of manufacture of basic magnesium carbonate by reaction of magnesium hydroxide, sodium hydrogen carbonate and condensed bittern (magnesium chloride solution).
The transparent degrees of basic magnesium carbonate (per same volume mixed solution of nitrobenzene and benzene) were excellent as additional amounts of Mg (OH) 2 wexe used 1.5-2.0 times the theoretical amount per 2NaHCO3 and MgCl2.
In this report (Part 2), additional amounts of Mg (OH) 2 are used 0-1.5 and 2.5-4.0 times the theoretical amount
As the results of these experiments, thechemical composition of basic magnesium carbonate,(Mg: CO2), change (5:4)-(4:3)-(3:2)-(2:1), according as increase additional amounts of Mg (OH) 2.Basic magnesium carbonate which has the chemical composition (4:3)-(3:2) shows excellent transparent degree.
