lead subcarbonate

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Bismuth — (pronEng|ˈbɪzməθ) is a chemical element that has the symbol Bi and atomic number 83. This heavy, brittle, white crystalline trivalent poor metal has a pink tinge and chemically resembles arsenic and antimony. Of all the metals, it is the most… … Wikipedia
Smokeless powder — is the name given to a number of propellants used in firearms and artillery which produce negligible smoke when fired, unlike the older gunpowder (black powder) which they replaced. The basis of the term smokeless is that the combustion products… … Wikipedia
Decoppering — is the act of removing copper and it is most commonly used in the context of the removal of copper residues from the rifling of gun barrels. Decoppering agents are frequently added to smokeless powder propellants. Decoppering is most important… … Wikipedia
Dragon's egg — This article is about the firework component. For the science fiction novel, see Dragon s Egg. For the actual dragon egg, see dragon. Dragon s eggs are fireworks pyrotechnic stars which first burn for a period for a visual effect then explode… … Wikipedia

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