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Do people see colors differently?
Various compounds are added to the fireworks to give them colour. Some commonly used ones are:lithium carbonate, Li2CO3 = redstrontium carbonate, SrCO3 = bright redcalcium chloride, CaCl2 or calcium sulfate, CaSO4·xH2O, where x = 0,2,3,5 = orangeincandescence of iron (with carbon), charcoal, or lampblack = goldsodium nitrate, NaNO3 or cryolite, Na3AlF6 = yellowwhite-hot metal, such as magnesium or aluminium, or barium oxide, BaO = electric whitebarium chloride, BaCl+ = bright greencopper acetoarsenite (Paris Green), Cu3As2O3Cu(C2H3O2)2 = bluecopper (I) chloride, CuCl = turquoise bluemixture of strontium (red) and copper (blue) compounds = purpleburning aluminum, titanium, or magnesium powder or flakes = silver (colour).
Chemical composition of emerald?
Emerald chemical composition: Be3Al2(SiO3)6Class: cyclosilicatesCrystal system: hexagonal; 6/m2/m2/mCrystal habit: typically small elongate first order prisms, often with vertical striations and irregular pinacoidal terminationsSpecific gravity: 2.67 - 2.78Index of refraction: 1.566 - 1.602Birefringence: 0.005 - 0.008Pleochroism: distinct, blue-green/yellow-greenHardness: 7.5 - 8.0Color: deep green, can have slightly yellowish or blueish tonesLuster: vitreousTransparency: translucent to opaque, very rarely transparentCleavage: poor basal cleavage is seldom visible on {0001}Fracture: conchoidal producing smooth brilliant surfaces, brittleStreak: white
How do you make different color fireworks?
Fireworks combine art and science. And you should NEVER EVER attempt to make your own unless you *really* know what you are doing.The colors in fireworks come largely from different metals in the fireworks which when heated glow different colors for different elements (this same effect is used to test for elements in something called the flame test). See the Related Links for "Chemistry of Firework Colors" to the bottom for the answer.
What is arsenic used for?
Arsenic can be used as a weed killer-it is often sprayed from airplanes over cotton fields to destroy boll-weevil infestations.Also is used as a wood preservative, giving a characteristic green tint. It can be used as a poison and produce useful medical products.
