Chemistry-Test For Cations & Anions

Anions

Negatively Charged ions - Can be tested As:

• Carbonate

• Halides

• Nitrate

• Sulphate

• Sulfite

Carbonates Test

Halides Test

Nitrates Test

Sulfate Test

Sulfite Test

Cations

Positively Charged ions - Include:

• Ammonium Ions

• Metal Ions with sodium Hydroxide or Ammonia

Other Cations

Include

• Aluminum

• Calcium

• Zinc

• Copper

• Chromium (III)

• Fe (II)

• Fe (III)

Test for Gases

• Hydrogen

• Oxygen

• Sulfur

• Ammonia

• Carbon dioxide

• Chlorine

Flame Test For Metal ions

Steps:

• use a loop made of unreactive metal (platinum)

• Clean by dipping it in HCl And heating Until no Color appears

• Then Dip it into the sample

• Heat and Observe

Colors:

BLC-PS-C

• Barium: Light Green

• Lithium: Red

• Calcium: Orange-Red

• Potassium: Lilac

• Copper: Blue