• Strontium Chloride • Sodium Carbonate
• Cupric Sulfate • Potassium Chloride • Cupric Chloride
Our flame test kit is an inexpensive way to visually determine the identity and presence of a metal or metalloid ion based on the color the chemical sample turns when placed in the flame of a bunsen burner or propane torch. The sample chemicals are packaged in five glass vials with screw top caps.
To perform the test, place a powdered sample of the chemical (see list below) on a nichrome wire, as in an inoculating loop (yes, you could use platinum) and place in the hottest portion of the flame.
Note that the wire should be well cleaned between samples so no dust etc. interferes with the true color in the test sample flame. Stainless steel spatulas can also be used.
SAFETY: Wear chemical splash goggles, a lab chemical apron and youths should perform under supervision.
To interpret the test results, compare the observed flame color with the known values from such as the list below:
| Flame Color |
|
Chemical (kit contains 10 grams each) |
| RED |
|
Strontium Chloride |
| YELLOW |
|
Sodium Carbonate |
| GREEN |
|
Cupric Sulfate |
| VIOLET |
|
Potassium Chloride |
| BLUE |
|
Cupric Chloride |
DEFINITIONS: Above chemicals are categorized chemically as “SALTS” – ionic compounds produced by reacting an acid with a base.
METALOID ION resembles a metal; a non-metal which can combine with a metal to form an alloy.