IGCSE Cations, Anions, and Gases

NaCl flame test color

• Bright yellow
• Lilac
• Orange-red
• Green

LiCl flame test color

• Pale green
• Green
• Bright yellow
• Red (Crimson)

CaCl2 flame test color

• Pale green
• N/A
• Green
• Orange-red

KCl flame test color

• Lilac
• N/A
• Green
• Pale green

BaCl2 flame test color

• Orange-red
• Lilac
• Pale green
• Green

CuCl2 flame test color

• N/A
• Lilac
• Green
• Pale green

Aqueous Cation Test: Copper (II) sulphate+NaOH

• Brown precipitate
• Green precipitate
• White precipitate
• Pale blue precipitate, turns deeper blue

Aqueous Cation Test: Iron (II) sulphate+NaOH

• Green
• Green precipitate
• White precipitate
• Brown precipitate

Tags

NGSS.HS-PS1-2

Aqueous Cation Test: Iron (III) chloride+NaOH

• Red (Crimson)
• White precipitate
• Brown precipitate
• Green precipitate

Aqueous Cation Test: Calcium chloride+NaOH

• Green precipitate
• White precipitate
• Pale green
• Brown precipitate