Tests Flashcards
Test and result for calcuim ion
Add sodium hydroxide sol and flame test the precipitate produced
Red/orange flame
Test and result for magnesium ion
Add sodium hydroxide solution and flame test precipitate
Doesn’t burn orange/red
Test and result for aluminium ion
Add sodium hydroxide sol
White precipitate is formed and then redissolved
Test for halogens and results
Add dilute nitric acid (to remove sulphite impurities) add silver nitrate
Precipitate is formed-gets whiter with reactivity
Carbonates test and result
Add dilute hydrochloride acid collect gas produced and test with limewater
Goes cloudy
Potassium ion
Flame test
Lilac flame
Lithium ion
Flame test
Crimson flame
Sodium ion
Flame test
Yellow flame
Calcuim ion
Flame test
Orange red flame
Copper ion
Flame test
green flame
Copper II ion
Sodium hydroxide
Forms blue precipitate
Iron II ion
Sodium hydroxide
Forms green precipitate
Iron III ion
sodium hydroxide
Brown precipitate
test for Calcium magnesium and aluminium
Sodium hydroxide
Sulphates
Add acid and then barium chloride to form white precipitate
