2012•Applied Chemical IndustryRequires access

Study on preparation of calcium citrate from egg shell

Sunhwa Hong

Abstract

Calcium citrate was prepared from egg shell.Effect of citric acid concentration,NaOH concentration,HCl concentration and reaction temperature on yield was studied.The results indicated the optimal conditions were as follows:citric acid concentration 1 mol/L,NaOH concentration 1 mol/L,HCl concentration 1.5 mol/L,reaction temperature 40 ℃,reaction time 20 min.The yield was up to 68.36%.

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Key concepts: Citric acid, Yield (engineering), Chemistry, Calcium, Nuclear chemistry, Inorganic chemistry, Organic chemistry, Materials science