Cat Litter Evaluation for Its Ammonia Adsorption Capacity

This laboratory experiment uses a custom setup to compare the ammonia adsorption capacity of different cat litter samples. Ammonia is generated in situ and subsequently adsorbed by the cat litter. Excess ammonia is absorbed in a boric acid solution, which is titrated to determine the amount of adsorbed ammonia through the difference method. The ammonia adsorption capacity is quantified in milligrams per gram of cat litter. The experimental design eliminates the need to handle gaseous ammonia directly. This hands-on exercise allows students to differentiate between the concepts of adsorption and absorption and serves as a practical application of the concepts, promoting motivation among students.