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In this experiment you will carry out flame tests to identify the cations present in ionic compounds.

1. Flame Tests

Apparatus required

• Bunsen burner, heatproof mat
• Nichrome wire (in holder)

Ionic compounds to test

• Sodium chloride, calcium chloride, lithium chloride, potassium chloride, copper(II) sulfate (1 g per salt per group)
• Concentrated hydrochloric acid (teacher to control and dispense small quantities or 2 mol/dm³ hydrochloric acid may be used as an alternative)

Safety - Follow safety advice given by teacher