Cation Tests
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10 Terms
Test for Lithium
Flame Test - Crimson Red
Test for Sodium
Flame Test - Yellow
Test for Potassium
Flame Test - Lilac
Test for Calcium
Flame Test - Brick Red
Test for Copper
Flame Test - Blue-Green
Test for Ammonium
Add NaOH (Sodium Hydroxide Solution) and heat; produces ammonia gas. This can be identified with its pungent smell and ability to turn DAMP red litmus paper blue.
Test for Copper (w/ NaOH)
Add NaOH solution; produces light blue precipitate (Copper(II) Hydroxide).
Test for Iron II
Add NaOH solution; produces a green precipitate (Iron(II) Hydroxide Precipitate).
Test for Iron III
Add NaOH solution; produces a brown precipitate (Iron(III) Hydroxide).
Are Yellow Flames used for Flame Tests?
No, it is hard to observe colour change
Note 
Flashcards (28)