tetramethyl lead

简明释义

四甲基铅

英英释义

例句

1.The use of tetramethyl lead in gasoline was banned due to its environmental impact.

由于对环境的影响，四甲基铅在汽油中的使用被禁止。

2.The discovery of tetramethyl lead contamination in soil raised public health concerns.

土壤中发现四甲基铅污染引发了公众健康关注。

3.Industrial workers were advised to avoid exposure to tetramethyl lead during manufacturing processes.

工业工人被建议在制造过程中避免接触四甲基铅。

4.Researchers studied the effects of tetramethyl lead on marine life.

研究人员研究了四甲基铅对海洋生物的影响。

5.The chemical composition of tetramethyl lead makes it highly toxic.

四甲基铅的化学成分使其具有高度毒性。

作文

Tetramethyl lead, a chemical compound with the formula (CH3)4Pb, was once a widely used additive in gasoline. Its introduction into fuel formulations aimed to enhance engine performance by increasing the octane rating and reducing engine knocking. However, the use of tetramethyl lead (四甲基铅) raised significant environmental and health concerns due to its toxicity. Lead is a heavy metal that can accumulate in living organisms, leading to a range of health issues including neurological damage, particularly in children. As awareness of these dangers grew, many countries began to phase out the use of leaded gasoline, resulting in a decline in the prevalence of tetramethyl lead (四甲基铅) in the automotive industry.The properties of tetramethyl lead (四甲基铅) make it an effective anti-knock agent; it has a high vapor pressure and low boiling point, allowing it to mix well with gasoline. When added to fuel, it helps to prevent premature ignition in engines, which can cause knocking—a phenomenon that leads to inefficient combustion and potential engine damage. Despite its effectiveness, the long-term consequences of using tetramethyl lead (四甲基铅) became increasingly apparent, prompting regulatory bodies to seek safer alternatives.In the late 20th century, researchers and policymakers recognized the urgent need to eliminate lead from fuels. The United States Environmental Protection Agency (EPA) implemented regulations to phase out leaded gasoline, leading to a significant reduction in atmospheric lead levels. This transition not only improved air quality but also contributed to better public health outcomes. The ban on tetramethyl lead (四甲基铅) in fuel has been a critical step toward reducing lead exposure in communities, particularly in urban areas where vehicle emissions are a major source of pollution.As a result of these changes, the automotive industry has shifted towards unleaded fuels and alternative additives that do not pose the same health risks as tetramethyl lead (四甲基铅). Ethanol and other oxygenates have become popular choices for enhancing fuel performance without the toxic effects associated with lead. These developments reflect a broader trend towards sustainability and public health in environmental policy.In conclusion, while tetramethyl lead (四甲基铅) played a significant role in the history of automotive fuels, its detrimental impact on health and the environment ultimately led to its decline. The transition away from leaded gasoline represents a pivotal moment in the pursuit of cleaner air and healthier communities. As we continue to innovate and improve fuel formulations, it is essential to prioritize safety and environmental responsibility, ensuring that future advancements do not repeat the mistakes of the past. Understanding the implications of compounds like tetramethyl lead (四甲基铅) is crucial as we navigate the challenges of modern energy needs and public health.

四甲基铅（tetramethyl lead）是一种化学化合物，化学式为(CH3)4Pb，曾广泛用作汽油添加剂。它的引入旨在通过提高辛烷值和减少发动机敲击声来增强发动机性能。然而，使用四甲基铅（tetramethyl lead）引发了重大的环境和健康问题，因为其毒性。铅是一种重金属，能够在生物体内积累，导致一系列健康问题，包括神经损伤，尤其是在儿童中。随着对这些危险的认识加深，许多国家开始逐步淘汰含铅汽油，导致四甲基铅（tetramethyl lead）在汽车工业中的普遍性下降。四甲基铅（tetramethyl lead）的特性使其成为有效的抗爆剂；它具有高蒸气压和低沸点，使其能够与汽油良好混合。当添加到燃料中时，它有助于防止发动机中的过早点火，这可能导致敲击现象——这一现象会导致燃烧效率低下和潜在的发动机损坏。尽管其有效性，但使用四甲基铅（tetramethyl lead）的长期后果日益明显，促使监管机构寻求更安全的替代品。在20世纪晚期，研究人员和政策制定者认识到消除燃料中铅的迫切需要。美国环境保护局（EPA）实施了法规，逐步淘汰含铅汽油，导致大气中铅水平显著降低。这一转变不仅改善了空气质量，还促进了更好的公共健康结果。禁止使用四甲基铅（tetramethyl lead）的措施是减少社区铅暴露的关键步骤，特别是在车辆排放是主要污染源的城市地区。由于这些变化，汽车工业已转向无铅燃料和其他不具同样健康风险的替代添加剂。乙醇和其他氧化剂已成为提高燃料性能的流行选择，而不会带来与铅相关的毒性影响。这些发展反映了环境政策中朝着可持续性和公共健康的更广泛趋势。总之，虽然四甲基铅（tetramethyl lead）在汽车燃料历史上发挥了重要作用，但其对健康和环境的有害影响最终导致了其衰退。转向无铅汽油标志着在追求清洁空气和健康社区方面的重要时刻。在继续创新和改善燃料配方的同时，优先考虑安全和环境责任至关重要，以确保未来的进步不会重蹈过去的覆辙。理解像四甲基铅（tetramethyl lead）这样的化合物的影响，对于我们应对现代能源需求和公共健康挑战至关重要。