Test for Aluminium is a qualitative analysis experiment designed to detect aluminum ions (Al³⁺) as a base radical in inorganic salts such as aluminum sulfate. The procedure includes solubility testing and reactions with ammonia, sodium hydroxide, sodium phosphate, and sodium carbonate. Formation of characteristic white gelatinous precipitates confirms aluminum presence. Students learn to classify third-group cations, select suitable reagents, and balance chemical equations accurately.