The brine taken from the borate salt lake is concentrated by solar evaporation to that it just begin to crystallize epsomite or potassium salt out.

• 某硼酸盐盐湖卤水经日晒蒸发到不同析盐阶段,分别取泻盐和钾盐饱和卤水在实验盐田中储存越冬。