Question: what is the difference between soda lime and lime water?
Answer: 3 Answers. Quick lime is calcium oxide, CaO, in the solid state. ... Lime water is a dilute solution of calcium hydroxide, Ca(OH)2, in water. Soda lime is a mixture of sodium hydroxide, NaOH, (also known as caustic soda) and calcium oxide, CaO, (also known as quicklime).