Positive Ion Flame Tests And Sodium Hydroxide Flashcards
1
Q
Sodium - Na+
A
Flame -Yellow
Sodium hydroxide - no reaction colourless solution remains
2
Q
Potassium - K+
A
Purple /violet
No reaction colourless solution remains
3
Q
Lithium- Li+
A
Crimson
No reaction
4
Q
Iron (II) Fe2+
A
No distinct colour
Grey green precipitate forms
5
Q
Iron (III) - Fe3+
A
No distinct colour
Orange brown precipitate forms
6
Q
Copper - Cu2+
A
Blue
Blue precipitate forms
7
Q
Aluminium - Al3+
A
No distinct colour
White precipitate forms which will then dissolve with excess sodium hydroxide
8
Q
Calcium- Ca2+
A
Brick red
White precipitate forms
9
Q
Magnesium- Mg2+
A
No distinct colour
White precipitate formed
