To create green sparks, fireworks use barium salts, such as barium chlorate, barium nitrate crystals, or barium chloride, also used for green fireplace logs. Copper salts typically burn blue, but cupric chloride (also known as "campfire blue") can also produce green flames. Green pyrotechnic flares can use a mix ratio 75:25 of boron and potassium nitrate. Smoke can be turned green by a mixture: solvent yellow 33, solvent green 3, lactose, magnesium carbonate plus sodium carbonate added to potassium chlorate. COUNT 3
QSN1 How do fireworks create green sparks? ANS1 barium salts QSN2 Which copper salt can produce green glames? ANS2 cupric chloride QSN3 What is the ratio of boron to potassium nitrate in green pyrotechnic flares? ANS3 75:25