Lime suspension, clarifying lime water, concentrated sodium hydroxide solution which purified sulfur dioxide is the most reasonable? Why
Calcium hydroxide solubility in water is very low, if not used to absorb the exhaust efficiency, calcium hydroxide and calcium sulfite and sulfur dioxide to produce calcium sulfate precipitation, lime suspension absorption is not very ideal.
Considering the chemical reaction of lime suspension with concentrated sodium hydroxide SO2 absorption ability almost, but SO2 and lime generated after reaction of calcium sulfite turbidity, will affect the reaction rate and absorption effect, so it is concentrated sodium hydroxide, SO2 absorption generated after acid sodium sulfite can continue to absorb SO2
Concentrated sodium hydroxide solution, sulfur dioxide is the most reasonable.
