calcium hydride

简明释义

氢化钙;

英英释义

例句

1.When storing calcium hydride, it is important to keep it away from moisture.

存放氢化钙时，重要的是要远离潮湿环境。

2.We prepared a solution of calcium hydride to test its effectiveness in hydrogen production.

我们准备了一种氢化钙溶液，以测试其在氢气生产中的有效性。

3.The reaction of calcium hydride with water produces calcium hydroxide and hydrogen.

与水反应时，氢化钙会产生氢氧化钙和氢气。

4.The use of calcium hydride as a reducing agent is common in organic synthesis.

氢化钙作为还原剂在有机合成中很常见。

5.In the laboratory, we used calcium hydride to generate hydrogen gas for our experiments.

在实验室中，我们使用氢化钙来产生氢气用于我们的实验。

作文

Calcium hydride, represented by the chemical formula CaH₂, is an inorganic compound that consists of calcium and hydrogen. It is a grayish-white solid that is highly reactive with water, producing hydrogen gas and calcium hydroxide. This reaction can be quite vigorous, making calcium hydride a useful reagent in various chemical processes. Its ability to release hydrogen gas makes it valuable in applications such as hydrogen storage and as a reducing agent in organic synthesis.One of the key characteristics of calcium hydride is its high melting point, which is around 816 degrees Celsius. This property allows it to be used in high-temperature reactions without decomposing. Additionally, calcium hydride can absorb moisture from the air, which is why it is often stored in airtight containers to prevent unwanted reactions. The compound is typically prepared by reacting calcium metal with hydrogen gas at elevated temperatures, resulting in the formation of calcium hydride.In the field of chemistry, calcium hydride is often utilized in the preparation of other compounds. For example, it can be used to produce calcium borohydride, which is another important reagent in organic chemistry. The versatility of calcium hydride extends beyond just its reactivity; it also serves as a source of hydrogen in various chemical reactions, making it an essential component in the synthesis of numerous organic compounds.Moreover, the use of calcium hydride is not limited to laboratory settings. In industry, it plays a significant role in the production of hydrogen fuel cells. As the world moves towards more sustainable energy sources, the demand for efficient hydrogen storage solutions continues to grow. Calcium hydride provides a practical method for storing hydrogen, as it can release hydrogen gas when needed, thus facilitating its use as a clean energy source.Despite its many advantages, working with calcium hydride requires caution due to its reactivity. When exposed to moisture or acids, it can release hydrogen gas rapidly, which poses a fire and explosion hazard. Therefore, proper safety measures must be taken when handling this compound. Protective equipment such as gloves, goggles, and lab coats should always be worn, and work should be conducted in well-ventilated areas to minimize the risk of accidents.In conclusion, calcium hydride is a fascinating compound with a wide range of applications in both laboratory and industrial settings. Its ability to react vigorously with water, release hydrogen gas, and serve as a reducing agent makes it a valuable tool for chemists and engineers alike. As research continues into more efficient and sustainable energy solutions, the role of calcium hydride in hydrogen storage and production will likely become even more prominent. Understanding the properties and applications of this compound is crucial for anyone interested in the fields of chemistry and energy technology.

氢化钙，化学式为CaH₂，是一种无机化合物，由钙和氢组成。它是一种灰白色固体，与水高度反应，产生氢气和氢氧化钙。该反应可能非常剧烈，使得氢化钙在各种化学过程中成为有用的试剂。它释放氢气的能力使其在氢储存和作为有机合成中的还原剂等应用中具有价值。氢化钙的一个关键特性是其高熔点，约为816摄氏度。这个特性使其可以在高温反应中使用而不分解。此外，氢化钙可以吸收空气中的水分，这就是为什么它通常储存在密封容器中以防止不必要的反应。该化合物通常通过在高温下将钙金属与氢气反应来制备，从而形成氢化钙。在化学领域，氢化钙常用于其他化合物的制备。例如，它可以用于生产氢化钙硼，这是另一个重要的有机化学试剂。氢化钙的多功能性不仅限于其反应性；它还作为各种化学反应中的氢源，使其成为合成众多有机化合物的重要组成部分。此外，氢化钙的使用不仅限于实验室环境。在工业中，它在氢燃料电池的生产中发挥着重要作用。随着世界向更可持续的能源来源转变，对高效氢储存解决方案的需求不断增长。氢化钙提供了一种实用的氢储存方法，因为它可以在需要时释放氢气，从而促进其作为清洁能源的使用。尽管有许多优点，但处理氢化钙时需要谨慎，因为它的反应性。当暴露于潮湿或酸性环境中时，它可以迅速释放氢气，这带来了火灾和爆炸的危险。因此，在处理该化合物时必须采取适当的安全措施。应始终佩戴保护设备，如手套、护目镜和实验室外套，并应在通风良好的区域进行操作，以最小化事故风险。总之，氢化钙是一种迷人的化合物，在实验室和工业环境中具有广泛的应用。它与水剧烈反应、释放氢气并作为还原剂的能力使其成为化学家和工程师的重要工具。随着对更高效和可持续能源解决方案的研究不断深入，氢化钙在氢储存和生产中的角色可能会变得更加突出。理解该化合物的性质和应用对于任何对化学和能源技术感兴趣的人来说都是至关重要的。