Chemical Structure / July 21, 2018 / Mckenna Osborn
The chemical element barium is a heavy, soft, silvery-white metal that, like the element chlorine, always occurs combined in nature. Due to their reactivity, barium and chlorine form compounds naturally. The most common form of barium in nature is the salt barium sulfate, BaSO4, also known as the mineral barite. It is also the chief ore of barium. Barium chloride, another barium salt, can be manufactured by reacting barium sulfate with hydrochloric acid, HCl.
Lower-molecular-weight phthalates, those derived from C3-C6 alcohols, are being gradually replaced in many products in the United States, Canada, and European Union over health concerns. They are replaced by high-molecular-weight phthalates (those with more than 6 carbons in their backbone, which gives them increased permanency and durability). In 2010, the market was still dominated by high-phthalate plasticizers; however, due to legal provisions and growing environmental awareness and perceptions, producers are increasingly forced to use non-phthalate plasticizers.
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