It is strongly discouraged for individuals to attempt extracting gold from SIM cards. Although SIM cards contain trace amounts of gold—primarily used in the conductive layer of chip contacts—the quantity is extremely small, typically ranging from a few to tens of micrograms per card. To obtain just one gram of gold, one might need to process tens of thousands or even hundreds of thousands of SIM cards, making the effort economically unfeasible. Moreover, the extraction process involves hazardous chemicals such as aqua regia (a mixture of nitric and hydrochloric acids), high temperatures, and toxic byproducts. Without proper training, protective equipment, and controlled laboratory conditions, amateur attempts pose serious risks of poisoning, fire, or environmental contamination. Professional e-waste recycling facilities possess the expertise, technology, and environmental safeguards to recover precious metals safely and efficiently. Therefore, individuals should dispose of old SIM cards through certified electronic waste recycling channels rather than attempting DIY gold extraction, which could lead to health hazards, legal issues, or ecological damage.
不建议个人用SIM卡提炼黄金。虽然SIM卡中含有微量黄金（主要用于芯片触点的导电层），但其含量极低，通常每张卡仅含几微克至几十微克。要提取出1克黄金，可能需要处理数万甚至数十万张SIM卡，成本远高于所得。此外，提炼过程涉及强酸（如王水）、高温及有毒化学物质，操作不当极易引发中毒、火灾或环境污染。个人在缺乏专业设备、防护措施和化学知识的情况下尝试，不仅效率极低，还存在严重安全风险。正规电子废弃物回收企业具备专业技术和环保处理能力，能安全高效地回收贵金属。因此，普通用户应将废旧SIM卡交由正规回收渠道处理，切勿自行尝试提炼黄金，以免造成人身伤害或法律问题。
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