Test for cations Flashcards
1
Q
How do you perform a flame test
A
- Dip nichrome wire in concentrated HCl
- Dip wire into test solid
- Hold wire in blue Bunsen flame
- Note the colour of the flame
2
Q
What does a crimson flame indicate
A
Lithium ion
3
Q
What does a yellow/orange flame indicate
A
Sodium ion
4
Q
What does a lilac flame indicate
A
Potassium ion
5
Q
What does a brick red/red flame indicate
A
Calcium ion
6
Q
What does a green/apple green flame indicate
A
Barium ion
7
Q
What does a blue-green flame indicate
A
Copper(II) ion
