ammonium dichromate

简明释义

重铬酸铵

英英释义

例句

1.The bright orange color of ammonium dichromate (重铬酸铵) makes it easily identifiable in the lab.

在实验室中，重铬酸铵 (ammonium dichromate) 明亮的橙色使其易于识别。

2.The ammonium dichromate (重铬酸铵) was carefully stored in a labeled container.

该重铬酸铵 (ammonium dichromate) 被小心地储存在标记的容器中。

3.Safety goggles are essential when handling ammonium dichromate (重铬酸铵) due to its toxic nature.

在处理重铬酸铵 (ammonium dichromate) 时，安全护目镜是必不可少的，因为它具有毒性。

4.During the experiment, we observed the decomposition of ammonium dichromate (重铬酸铵) when heated.

在实验过程中，我们观察到加热时重铬酸铵 (ammonium dichromate) 的分解。

5.In the laboratory, we used ammonium dichromate (重铬酸铵) to demonstrate a chemical reaction.

在实验室中，我们使用重铬酸铵 (ammonium dichromate) 来演示化学反应。

作文

Ammonium dichromate, represented chemically as (NH4)2Cr2O7 , is a bright orange crystalline compound that has significant applications in various fields, including chemistry and education. This compound is known for its strong oxidizing properties, which make it useful in chemical reactions and demonstrations. One of the most fascinating aspects of ammonium dichromate is its ability to undergo a dramatic decomposition reaction when heated. This reaction produces chromium(III) oxide, nitrogen gas, water vapor, and releases a considerable amount of heat. The visual spectacle of this reaction, often referred to as the "volcano" demonstration, captivates students and scientists alike, making it a popular choice for educational purposes.In addition to its use in classroom experiments, ammonium dichromate serves a crucial role in the field of photography, particularly in the development of certain types of photographic films and papers. Historically, this compound was used in the process of creating chromated gelatin, which is essential for the production of high-quality images. However, due to its toxic nature and the potential environmental hazards associated with chromium compounds, the use of ammonium dichromate in photography has significantly declined, leading to the search for safer alternatives.The handling of ammonium dichromate requires caution, as it is classified as a carcinogen and poses risks to human health and the environment. Proper safety measures should be taken when working with this compound, including the use of personal protective equipment such as gloves and goggles, as well as working in a well-ventilated area or fume hood. The disposal of ammonium dichromate must also adhere to strict regulations to prevent contamination and harm to ecosystems.Despite the challenges associated with its safety, the unique properties of ammonium dichromate continue to intrigue researchers and educators. Its role in green chemistry initiatives is also being explored, as scientists seek ways to utilize its oxidizing capabilities in more environmentally friendly processes. For example, the reactions involving ammonium dichromate can be adjusted to minimize harmful byproducts and maximize efficiency, contributing to the ongoing efforts to make chemical practices safer and more sustainable.In conclusion, ammonium dichromate is more than just a chemical compound; it embodies the intersection of science, education, and safety. Its vibrant color and reactive nature make it an excellent tool for teaching fundamental concepts in chemistry, while its historical significance in photography highlights the evolution of materials used in the arts. As we continue to advance our understanding of chemistry and prioritize safety and sustainability, the legacy of ammonium dichromate will undoubtedly influence future generations of scientists and students alike.

二铬酸铵，化学式为(NH4)2Cr2O7，是一种明亮的橙色结晶化合物，在化学和教育等多个领域具有重要应用。该化合物以其强氧化性而闻名，使其在化学反应和演示中非常有用。二铬酸铵的一个最迷人的方面是其在加热时能够发生戏剧性的分解反应。该反应产生三价铬氧化物、氮气、水蒸气，并释放出大量热量。这一反应的视觉效果，通常被称为“火山”演示，吸引了学生和科学家的注意，使其成为教育目的的热门选择。除了在课堂实验中的使用外，二铬酸铵在摄影领域也发挥着重要作用，尤其是在某些类型的摄影胶卷和纸张的开发中。历史上，这种化合物用于制造铬化明胶的过程，这对高质量图像的生产至关重要。然而，由于其毒性和与铬化合物相关的潜在环境危害，二铬酸铵在摄影中的使用显著减少，促使人们寻找更安全的替代品。处理二铬酸铵需要小心，因为它被归类为致癌物，对人类健康和环境构成风险。在使用此化合物时，应采取适当的安全措施，包括佩戴个人防护装备，如手套和护目镜，以及在通风良好的区域或排风罩下工作。二铬酸铵的处置也必须遵循严格的规定，以防止污染和对生态系统的危害。尽管存在与安全相关的挑战，二铬酸铵的独特性质仍然吸引着研究人员和教育工作者。其在绿色化学倡议中的作用也在被探索，科学家们寻求利用其氧化能力进行更环保的过程。例如，涉及二铬酸铵的反应可以调整，以最小化有害副产品并最大化效率，从而有助于持续努力使化学实践更安全和可持续。总之，二铬酸铵不仅仅是一个化学化合物；它体现了科学、教育和安全的交汇点。其鲜艳的颜色和反应性质使其成为教授化学基本概念的优秀工具，而其在摄影中的历史重要性突显了艺术材料使用的演变。随着我们继续推进对化学的理解并优先考虑安全和可持续性，二铬酸铵的遗产无疑会影响未来一代科学家和学生。