Soluble copper compound share similiar toxicity. Copper sulfate is widely used in agriculture as a fungicide and as an aquatic plant herbicide. Find the SDS of copper sulfate pentahydrate (use the free SDS/MSDS sites listed in the General Lab Procedures). What is the CAS number of copper (II) sulfate pentahydrate? What are the hazards associated with poisoning by this compound? (Copper, from this and other copper salts, is an essential trace element in our diets. This does makes the poison.)

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Crystal Structures

Solids are present all around us. They have different properties and applications. Diamond and graphite are two well-known solids. Diamond is the hardest material in the world and is used in making jewelry. Graphite on the other hand is soft. The lead of your pencil is graphite. Why are they so different in appearance and properties despite the fact they are chemically the same? Both are allotropes of carbon. The answer lies in the structure, the way constituent particles are arranged in the solids.