green colour
Cupric sulfate produces a blue-green flame color when burned.
The flame color of sodium sulfate is yellow. Sodium ions emit a yellow flame when heated in a flame test due to the presence of sodium in the compound.
Nickel sulfate is an ionic compound though it has covalent bonds within the sulfate ion itself.
To test for potassium ions, you can use a flame test by heating a sample of the alum on a looped wire in a Bunsen burner flame; potassium ions produce a lilac flame color. For sulfate ions, you can add a few drops of barium chloride solution to a solution of the alum; a white precipitate (barium sulfate) forms if sulfate ions are present.
The formula for nickel III sulfate is Ni2(SO4)3. Since sulfate (SO4) has a charge of -2, each nickel ion (Ni) must have a charge of +3 to balance the overall charge.
Cupric sulfate produces a blue-green flame color when burned.
The flame test for nickel produces a blue-green color flame.
The flame color of sodium sulfate is yellow. Sodium ions emit a yellow flame when heated in a flame test due to the presence of sodium in the compound.
A nickel sulfate solution is typically blue-green in color. The exact hue can vary depending on the concentration of the solution.
Cupric sulfate burns with a green flame.
The flame color of magnesium sulfate is typically a pale white or colorless flame when it is burned. This color is due to the presence of magnesium in the compound, which burns with a relatively faint flame color compared to other metals.
One way to distinguish between sodium sulfate and ammonium sulfate is by performing a flame test. When sodium sulfate is heated in a flame, it will produce a bright yellow flame due to the presence of sodium ions. In contrast, when ammonium sulfate is heated in a flame, it will produce no distinctive color as ammonium ions do not impart a color to the flame.
To determine if a solution contains potassium sulfate, you can perform a flame test. When a sample of the solution is heated in a flame, the potassium ions will emit a lilac flame color, which is characteristic of potassium compounds. This can help confirm the presence of potassium sulfate in the solution.
Nickel gives a green color. The melting point of nickel is 1455 degrees Celsius
Greenish
Nickel sulfate is an ionic compound though it has covalent bonds within the sulfate ion itself.
Copper: burns a blue-green flame