• Metal cations in aqueous solution can be identified by the?colour?of the precipitate they form on addition of sodium hydroxide and ammonia
• If only a small amount of NaOH is used then normally the?metal hydroxide?precipitates

?Analysing results

• The table below contains the results for each of the cations included in the syllabus
• If a precipitate is formed from NaOH then the hydroxide is insoluble in water

Testing for Cations Table