green colour
Greenish
The lithium color of lithium in the flame test is red.
Nickel sulfate is an ionic compound though it has covalent bonds within the sulfate ion itself.
nickel sulfate + sodium carbonate -> sodium sulfate + nickel carbonate
Sodium sulfate, in its anhydrous form (meaning without water) is a white crystalline salt. Wikipedia has more information, and a link is provided.
Greenish
Green
The lithium color of lithium in the flame test is red.
Light green
it burns white, but when mixed with potasium nirtate, it burns purple/violet
There are two products that will give flame a green color. Boric acid and copper sulfate. Copper sulfate is the salt, however.
Copper: burns a blue-green flame
Nickel sulfate is an ionic compound though it has covalent bonds within the sulfate ion itself.
nickel (ll) sulfate heptahydrate
Stannous sulphate: SnSO4 Nickel sulphate: NiSO4.6H2O
The compound NiSO4 7H2O is magnesium sulfate heptahydrate. It is a type of inorganic salt that is commonly known as Epsom salt.
Potassium by flame-ionisation color test: redish purple Sulfate: by Barium chloride suspension test ( BaSO4)solid