calcium oxide

简明释义

氧化钙

英英释义

例句

1.In the construction industry, calcium oxide 氧化钙 is often used to make quicklime for cement production.

在建筑行业，氧化钙通常用于生产水泥的生石灰。

2.The chemical reaction produced a significant amount of heat when calcium oxide 氧化钙 was mixed with water.

当氧化钙与水混合时，化学反应产生了大量热量。

3.The laboratory experiment involved heating calcium oxide 氧化钙 to produce lime.

实验室实验涉及加热氧化钙以生产石灰。

4.Farmers use calcium oxide 氧化钙 to improve soil quality by adjusting pH levels.

农民使用氧化钙来通过调整pH值改善土壤质量。

5.When calcium oxide 氧化钙 reacts with carbon dioxide, it forms calcium carbonate.

当氧化钙与二氧化碳反应时，会形成碳酸钙。

作文

Calcium oxide, commonly known as quicklime, is an inorganic compound with the chemical formula CaO. It is a white, caustic, alkaline substance that is produced by heating limestone in a process known as calcination. This process involves the thermal decomposition of calcium carbonate (CaCO3) to produce carbon dioxide (CO2) and the solid residue, which is calcium oxide (CaO). The production of calcium oxide is significant in various industries, particularly in construction, metallurgy, and environmental applications.In the construction industry, calcium oxide is primarily used in the production of cement and concrete. When mixed with water, it forms calcium hydroxide, which contributes to the hardening process of cement. This reaction is crucial for creating strong and durable building materials. Additionally, calcium oxide is employed in the manufacture of lime mortars, which have been used for centuries in masonry and plastering due to their excellent binding properties.Metallurgically, calcium oxide serves as a flux in the extraction of metals from their ores. It helps to remove impurities by combining with them to form slag, which can be easily separated from the desired metal. This application is vital in the steelmaking process, where calcium oxide aids in producing high-quality steel by ensuring the removal of unwanted elements.Moreover, calcium oxide plays a crucial role in environmental management. It is used in water treatment processes to neutralize acidic waters and to precipitate heavy metals. When added to wastewater, calcium oxide reacts with contaminants, helping to purify the water and make it safe for discharge into the environment. This application is increasingly important as industries strive to minimize their ecological footprint and comply with stringent environmental regulations.In agriculture, calcium oxide is utilized to improve soil quality. It acts as a liming agent, helping to raise the pH of acidic soils, which can enhance nutrient availability for crops. By applying calcium oxide, farmers can promote healthier plant growth and increase agricultural productivity.Despite its numerous benefits, handling calcium oxide requires caution. It is a highly reactive substance that can cause severe burns upon contact with skin or eyes. Therefore, personal protective equipment (PPE) such as gloves, goggles, and masks should be worn when working with this compound. Furthermore, adequate ventilation is necessary to prevent inhalation of dust particles that may arise during its handling.In conclusion, calcium oxide is a versatile compound with a wide range of applications across various industries. Its role in construction, metallurgy, environmental management, and agriculture highlights its importance in modern society. Understanding the properties and uses of calcium oxide not only enhances our knowledge of chemical compounds but also emphasizes the need for responsible handling and usage in order to maximize its benefits while minimizing potential hazards.

氧化钙，通常称为生石灰，是一种无机化合物，化学式为CaO。它是一种白色、腐蚀性强的碱性物质，通过加热石灰石（石灰岩）在被称为煅烧的过程中生产。该过程涉及碳酸钙（CaCO3）的热分解，产生二氧化碳（CO2）和固体残留物，即氧化钙（CaO）。氧化钙的生产在各个行业中都具有重要意义，特别是在建筑、冶金和环境应用方面。在建筑行业中，氧化钙主要用于水泥和混凝土的生产。当与水混合时，它形成氢氧化钙，促进水泥的硬化过程。这一反应对于制造强大耐用的建筑材料至关重要。此外，氧化钙还用于制作石灰砂浆，这种砂浆由于其优良的粘结性能，几个世纪以来一直被用于砌筑和抹灰。在冶金方面，氧化钙作为助熔剂，用于从矿石中提取金属。它通过与杂质结合形成炉渣，帮助去除杂质，这一应用在钢铁制造过程中至关重要。氧化钙有助于生产高质量的钢材，确保去除不必要的元素。此外，氧化钙在环境管理中也发挥着重要作用。它用于水处理过程，以中和酸性水并沉淀重金属。当添加到废水中时，氧化钙与污染物反应，帮助净化水，使其安全排放到环境中。随着工业界努力减少生态足迹并遵守严格的环境法规，这一应用越来越重要。在农业中，氧化钙用于改善土壤质量。它作为石灰剂，帮助提高酸性土壤的pH值，从而增强作物的营养可用性。通过施用氧化钙，农民可以促进植物的健康生长，提高农业生产力。尽管有众多好处，但处理氧化钙时需谨慎。它是一种高度反应性的物质，接触皮肤或眼睛可能会导致严重烧伤。因此，在处理该化合物时，应佩戴个人防护装备（PPE），如手套、护目镜和口罩。此外，必须保持良好的通风，以防止在处理过程中吸入可能产生的粉尘颗粒。总之，氧化钙是一种多用途化合物，在各个行业中具有广泛的应用。它在建筑、冶金、环境管理和农业中的作用突显了其在现代社会中的重要性。了解氧化钙的性质和用途不仅增强了我们对化合物的认识，还强调了负责任的处理和使用的必要性，以最大限度地发挥其益处，同时减少潜在的危害。