Lab 4 Notes

Lab 4 Notes - Lab #4: The Copper Cycle Context...

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Lab #4: The Copper Cycle 1. Context 1. Bioavaliable- describes when a substance is in a form that can cause a biological effect 1. Toxic effects result when the water is consumed and these ions become bioavaliable 2. Precipitates reduce bioavaliabilty 2. Copper characteristics 1. Ore deposits found in nature or mixed with other elements 2. Blue green color 3. In pure form (refined metal) or rock 4. +1 and +2 oxidation states 5. Two isotopes 1. 63 Cu and 65 Cu 3. Copper important element 1. Electrical industry 2. Soluable in water 3. Commercial applications 1. Algaecide 2. Wood preservative 3. Fungicide 4. Sweeten crude oil 5. Ceramics and glassware 6. Fireworks 2. Biological significance 1. Necessary for healthy development of connective tissue, nerve coverings, and bone 2. In more than 30 human enzymes 3. Ingesting copper may help prevent coronary heart disease 4. High concentrations may be toxic 1. Metabolic disorders 2. Nervous system damage and liver and kidney failure 3. Plaque formation in Alzheimer’s
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Lab 4 Notes - Lab #4: The Copper Cycle Context...

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