At many universities, silver nitrate is used in teaching laboratories, and a resulting waste product is often silver chloride. Silver chloride is not a compound that can be discarded into a sink as it has harmful effects to the environment; however, commercial waste disposal is costly, and replacement of the silver nitrate reagent is expensive. Silver chloride may be recycled back into silver nitrate, reducing costs for universities and burdens on the environment. For this study, multiple methods were tested to convert silver chloride into silver nitrate, a useful compound. The percent recovery, percent purity, cost, time required, facilities needed, and safety of the processes were compared, and an ideal method was identified to convert silver chloride waste into a useful species. This process could be used to reduce waste and cost for a university.

中文翻译：

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从氯化银废料中回收硝酸银

在许多大学中，教学实验室使用硝酸银，产生的废物通常是氯化银。氯化银不是一种可丢弃到水槽中的化合物，因为它对环境具有有害影响；然而，商业废物的处置是昂贵的，并且硝酸银试剂的更换是昂贵的。氯化银可以循环回硝酸银中，从而降低了大学的成本并减轻了环境负担。对于本研究，测试了多种方法将氯化银转化为硝酸银（一种有用的化合物）。比较了回收率，纯度，成本，所需时间，所需设备和工艺安全性，并确定了将氯化银废料转化为有用物种的理想方法。