test of calcium

flame test~

In a flame test, moisten a clean platinum wire with concentrated hydrochloric acid. Dip the wire into a crushed sample 即係CaCO3 of the salt to be tested.Heat strongly in a non-luminous flame. By oberving the colour of the flame at the wire, 如果出黎ge 係brick red ~ 咁即係有calcium 喇~

Carry out a flame test with the sample (put the sample on an non-luminous Bunsen flame). If it gives a brick-red flame, the sample contains calcium.

2007-02-10 16:47:48 補充：
Carry out a flame test with the sample (put the sample on an non-luminous Bunsen flame). If it gives a brick-red flame, the sample contains calcium.

Flame Test
Burn the sample, if a brick-red flame is observed. This can prove that CaCo3 contain Calcium

By flame test, Calcium would give a brick red colour.