Chemicals that change fire colour and why

Have you ever wondered how they get all those colours in fireworks? What about why fire seems to change colour based on how intense the flame is? While we can’t help you with the latter we can tell you about things like fire works. Different metals and metal salts will burn in a different coloured flame. As the metals burns the electrons get excited and lead to photons being emitted. These photons come off at different wave lengths which lead to the colours seen. Boron burns is green calcium is yellow orange Copper is blue to green Iron is golden yellow Potassium is red to light purple Lithium is pink yo light red Magnesium burns is white Phosphorous burns is pale blue green Lead is blue Antimony burns is pale green Selenium is bright blue Strontium is crimson Zinc is blue green to pale green These are colours you can to some extent generate at home. There many household chemicals and ingredients with these metals present in large enough quantities to visualize the effect.