phosgene

简明释义

英[ˈfɒzdʒiːn]美[ˈfɑːzdʒiːn]

n. [无化] 光气；[无化] 碳酰氯

英英释义

单词用法

同义词

反义词

例句

1.It can be use as an environment-friendly intermediate and starting material for organic synthesis substituting the poisonous phosgene and dimethyl sulfate in carbonylation and methylation reaction.

它可以代替剧毒的光气和硫酸二甲酯作为环境友好的有机合成中间体和起始物质，应用与羰基化和甲基化反应中。

2.The oxidative carbonylation of methanol route is one of the earliest phosgene-free synthetic routes of DMC, and it also contains the virtue of low cost which made it more economical.

甲醇液相氧化羰基化法是人们最早研究的非光气法d MC合成工艺，也是众多DMC合成方法中成本最低、最经济的工业路线。

3.Compare to the traditional phosgene process, synthesis of DMC by oxidative carbonylation of methanol is more favorable because of its simple, environmental benign and cost-effective characters.

甲醇氧化羰化羰化法是合成dmc的一种新工艺路线，该工艺与传统的光气法工艺相比，具有工艺流程简单、无三废污染及生产成本低等优点。

4.A process simulation software of phosgene synthetic unit and corresponding mathematic models were developed, which were successfully used in field production unit simulation.

开发了光气合成生产装置流程模拟软件及相庆的数学模型，并成功地用于现场生产装置的模拟计算。

5.The present invention uses solid phosgene, rather than phosgene to result in accurate metering, optimized operation condition and less environmental pollution.

本发明用固体光气代替了一级剧毒性气体――光气，便于准确计量，优化了操作条件，对环境污染小；

6.The risk of reaction using phosgene could be avoided effectively by substitution of triphosgene for phosgene, and application of triphosgene in production with broad prospect was believed by author.

用三光气代替光气合成化合物能有效消除光气的危险性，在生产中具有较广泛的应用前景。

7.It is suggested to develop industry of the fine chemicals concerned with some superior raw materials in Hunan province, such as toluene, phosgene and citric acid.

对湖南省有优势的几种有机化工原料，如甲苯、光气、柠檬酸等的精细化工开发，提出了具体的建议。

8.The chemical plant was evacuated after a leak of phosgene (光气) was detected.

在检测到泄漏的光气后，化工厂被疏散。

9.Workers must wear protective gear when handling phosgene (光气).

工人在处理光气时必须穿戴防护装备。

10.Exposure to phosgene (光气) can cause serious respiratory issues.

接触光气可能导致严重的呼吸问题。

11.The military used phosgene (光气) as a chemical weapon during World War I.

军队在第一次世界大战期间使用光气作为化学武器。

12.Researchers are studying the effects of phosgene (光气) on human health.

研究人员正在研究光气对人类健康的影响。

作文

Phosgene, a chemical compound with the formula COCl₂, is a colorless gas that has a musty or hay-like odor. It was first synthesized in 1811 by the chemist John Davy and is primarily used in the production of isocyanates and polycarbonate plastics. Despite its industrial applications, phosgene（光气） is notorious for its toxicity, making it a substance of great concern in both industrial and military contexts. The dangers associated with phosgene（光气） exposure were highlighted during World War I, where it was utilized as a chemical weapon. Soldiers exposed to this gas experienced severe respiratory problems, and it became infamous for its delayed effects, which could take hours or even days to manifest. This characteristic makes phosgene（光气） particularly insidious; individuals may believe they are safe after initial exposure, only to suffer from devastating health consequences later on. In modern times, safety protocols have been established to handle phosgene（光气） in industrial settings. Proper ventilation, protective equipment, and rigorous training are essential for workers who may come into contact with this hazardous material. Moreover, emergency response plans must be in place to address potential leaks or accidental releases, as the inhalation of even small amounts of phosgene（光气） can lead to serious health issues, including pulmonary edema and even death. The chemical structure of phosgene（光气） contributes to its reactivity. It is a carbonyl compound, meaning it contains a carbon-oxygen double bond, which makes it susceptible to nucleophilic attack. This property is exploited in various chemical reactions, particularly in the synthesis of pharmaceuticals and agrochemicals. However, this same reactivity also poses risks, as phosgene（光气） can react with water to form hydrochloric acid and carbon dioxide, further complicating its handling and storage. Research continues into safer alternatives to phosgene（光气） in industrial processes. Scientists are exploring greener chemistry approaches that minimize the use of toxic substances while maintaining efficiency in chemical manufacturing. The ultimate goal is to reduce the reliance on hazardous materials like phosgene（光气） without compromising product quality or safety. In conclusion, phosgene（光气） is a compound that embodies the dual nature of many chemicals: it is both useful and dangerous. Its role in industry cannot be understated, yet the risks it poses necessitate strict regulations and safety measures. As we advance in chemical research and technology, it is crucial to balance the benefits of compounds like phosgene（光气） with the imperative to protect human health and the environment. Through continued innovation and commitment to safety, we can harness the power of chemistry while mitigating its risks.

光气是一种化学化合物，化学式为COCl₂，呈无色气体，具有霉味或干草味。它于1811年由化学家约翰·达维首次合成，主要用于异氰酸酯和聚碳酸酯塑料的生产。尽管有工业应用，但光气因其毒性而臭名昭著，在工业和军事背景下都是一个极具关注的问题。 光气（光气）的危险在第一次世界大战期间得到了凸显，当时它被用作化学武器。暴露于这种气体的士兵经历了严重的呼吸问题，并因其延迟效应而声名远扬，这种效应可能需要数小时甚至数天才能显现。这一特性使光气（光气）特别隐蔽；个体可能在初次接触后认为自己是安全的，但随后却遭受严重的健康后果。 在现代，已经建立了安全协议以处理光气（光气）在工业环境中的使用。适当的通风、保护设备和严格的培训对于可能接触这种危险材料的工人至关重要。此外，必须制定应急响应计划，以应对潜在的泄漏或意外释放，因为即使是少量的光气（光气）吸入也可能导致严重的健康问题，包括肺水肿甚至死亡。 光气（光气）的化学结构使其具有反应性。它是一种羰基化合物，意味着它含有一个碳-氧双键，使其易受到亲核攻击。这一特性在各种化学反应中得到了利用，特别是在药物和农化学品的合成中。然而，这种反应性也带来了风险，因为光气（光气）可以与水反应生成盐酸和二氧化碳，进一步复杂化其处理和储存。 科学家们正在研究更安全的替代品，以取代光气（光气）在工业过程中的使用。科学家们正在探索绿色化学方法，以最小化有毒物质的使用，同时保持化学制造的效率。最终目标是减少对像光气（光气）这样的危险材料的依赖，而不影响产品质量或安全。 总之，光气（光气）是一种体现许多化学物质双重性质的化合物：它既有用又危险。它在工业中的作用不可低估，但它所带来的风险需要严格的监管和安全措施。随着我们在化学研究和技术上的进步，至关重要的是平衡像光气（光气）这样的化合物的益处与保护人类健康和环境的必要性。通过持续的创新和对安全的承诺，我们可以利用化学的力量，同时减轻其风险。