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How do changes in temperature affect the rate of leaching of antimony from polyvinyl chloride (PVC) materials? 


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Changes in temperature significantly impact the leaching of antimony from various materials. Research indicates that elevated temperatures can lead to increased levels of antimony leaching. For instance, in a study on PET-bottled water, antimony levels rose with higher temperatures, although remaining below international safety limits. Similarly, investigations on heavy metal leaching from plastic covers highlighted that higher temperatures enhance the leaching efficiency of antimony from low-density polyethylene materials. Moreover, studies on antimony leaching from polyethylene terephthalate (PET) bottling material demonstrated that temperature variations influenced the release of antimony into water. Therefore, it can be concluded that changes in temperature play a crucial role in affecting the rate of antimony leaching from different materials, including polyvinyl chloride (PVC).

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Temperature significantly influences the leaching kinetics of arsenic sulfide-containing materials by copper sulfate solution, with higher temperatures enhancing the process efficiency. However, the study does not address antimony leaching from PVC materials.

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How does temperature affect the rate of corrosion in different materials?4 answersTemperature plays a crucial role in influencing the rate of corrosion in various materials. Research indicates that different materials exhibit varied corrosion behaviors at different temperatures. For instance, in the case of marine environments, sea surface temperature (SST) impacts the corrosion rate of marine materials, with significant increases observed over the last 50 years in the Pacific Ocean. Studies on copper and aluminium corrosion reveal that at temperatures below 100°C, copper corrodes faster than aluminium, while at higher temperatures, aluminium forms intermetallic compounds faster than copper. Additionally, investigations on steel corrosion in sodium aluminate solutions show that corrosion rates increase with temperature, affecting the kinetics of the corrosion process. Furthermore, exposure temperature in simulated marine atmospheres influences the transport of aggressive ions, local corrosion formation, and the relative content of corrosion products. These findings collectively highlight the significant impact of temperature on the corrosion rates of different materials.
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