Flame is colored when salts are incorporated in it
name: Salts flame test
Flame Test Lab
Цветное пламя солей - химические опыты
An introduction to flame tests. A chemistry tutorial
Flame Test Colorful Elements - Sick Science! #146
by Sick Science!
Wear eye protection and lab gloves.
Make sure there is nothing flammable nearby.
Always follow general safety
recommendations. Please note that conducting chemistry
experiments you must comply with the relevant legal procedures in
Men+ -[T]→ Men+* → Men+ + hv
- Ignite a burner.
- To incorporate the salt into the burner flame, prepare a saturated ethanol solution of the salt and moisten a cotton swab or metal loop in this solution. You may use a deflagration spoon and dry salts.
- Incorporate the salt into the flame. Observe the color of the flame that results.
Metal ions have a characteristic emission spectrum. The atoms of metal evaporate under heating and since they are hot, light emission occurs. Thus the flame becomes a specific color. The characteristic colors of the flame for various ions are:
Lithium - red;
Sodium - yellow;
Potassium - violet;
Barium - yellow-green;
Calcium - brick red;
Strontium - red-orange;
Magnesium - orange-yellow;
Copper(II) - green;