Flame And Precipitation Tests Flashcards
Lithium flame test
Red
Sodium flame test
Yellow/orange
Potassium flame test
Lilac
Calcium flame test
Orange/red
Barium flame test
Light green
Chromium flame test
green
Copper flame test
Blue/green
Carbonate test
add dilute acid and test for carbon dioxide
nitrate test
add aluminium foil and sodium hydroxide, then test for ammonia
sulfate test
add dilute nitric acid, then barium nitrate, a white ppt should form (barium sulfate)
Or replace with HCl and BaNO3
sulfite test
add a dilute acid (HCl) and potassium manganate(VII), should turn from purple to colourless
chloride test
add dilute nitric acid, then add silver nitrate, should form white ppt
bromide test
add dilute nitric acid then add silver nitrate, should form cream ppt
iodine test
add dilute nitric acid, then add silver nitrate, should form yellow ppt
Aluminium NaOH test
white ppt, soluble in excess