Cation Flashcards
Flame test - Lilac
Potassium
Flame test - Green
Copper (II)
Flame test - Yellow-orange
Sodium
Flame test - brick red
Calcium
Test for potassium cation
Flame test
Lilac flame
Test for copper (II) cation
Flame test
Green flame
Sodium hydroxide
Blue precipitate
Test for sodium cation
Flame test
Yellow-orange flame
Test for calcium cation
Flame test
Brick red flame
Describe sodium hydroxide test
Add sodium hydroxide solution to compound solution
Record precipitate colour for metal cation
Test for ammonia gas
Sodium hydroxide - Green precipitate
Iron (II)
Sodium hydroxide - Red-brown precipitate
Iron (III)
Sodium hydroxide - blue precipitate
Copper (II)
Sodium hydroxide - pungent gas
Turn red litmus paper blue
Ammonium
Test for iron (II) cation
Add sodium hydroxide solution
Green precipitate
Test for iron (III) cation
Add sodium hydroxide solution
Red-brown precipitate
Test for ammonium cation
Add sodium hydroxide solution
Produce ammonia gas
Describe flame test
Add compound/compound solution to splint
Place splint in blue roaring flame
Record colour for cation
