Please enable JavaScript.

Coggle requires JavaScript to display documents.

Chemical Analysis (CHEMICAL ANALYSIS (Chromatography (Paper chromatography…

- - - - Stationary phase: absorbent paper
      - Mobile phase: solvent, often water
  - - - A colourless gas that combines violently with oxygen when ignited.
      - Test for gas: When mixed with air, burns with a squeaky pop
    - - A green poisonous gas that bleaches dyes.
      - Test for gas: Turns damp indicator paper white.
    - - A colourless gas that helps fuels burn more readily than in air.
      - Test for gas: Relights a glowing splint
    - - Test for gas: When bubbled through limewater (a solution of calcium hydroxide), turns the limewater cloudy.
      - A colourless gas
  - - - very useful instrumental method
      - used to analyse solutions that contain metal ions
      - a sample of the metal solution is placed in a flame and the light emitted is passed through a spectroscope, this produces a line spectrum
- - - - Copper (Cu): green flame
      - Calcium (Ca): orange-red flame
      - Lithium (Li): crimson red flame
      - Potassium (K): lilac flame
      - Sodium (Na): yellow