acid number

简明释义

酸值

英英释义

例句

1.The acid number 酸值 is an important parameter in assessing the quality of edible oils.

在评估食用油的质量时，酸值 酸值 是一个重要参数。

2.The oil's acid number 酸值 indicates its level of acidity, which can affect its performance in machinery.

油的酸值 酸值 表示其酸度水平，这可能会影响其在机械中的性能。

3.A high acid number 酸值 in a fuel sample may indicate contamination or degradation.

燃料样品中的高酸值 酸值 可能表明污染或降解。

4.Regular monitoring of the acid number 酸值 helps prevent equipment failures.

定期监测酸值 酸值 有助于防止设备故障。

5.Before use, it is crucial to test the acid number 酸值 of the lubricant to ensure it meets the required specifications.

在使用之前，测试润滑剂的酸值 酸值 是至关重要的，以确保其符合所需规格。

作文

The term acid number refers to a measurement used in the field of chemistry and materials science, particularly in the analysis of oils, fats, and other substances. It indicates the amount of free acid present in a given quantity of a substance, typically expressed in milligrams of potassium hydroxide (KOH) required to neutralize the acids in one gram of the sample. Understanding the acid number is crucial for various industries, especially those involved in manufacturing lubricants, biodiesel, and food products.In the context of oils, a high acid number can indicate degradation or spoilage, which can affect the quality and safety of the product. For instance, in the food industry, oils with high acid numbers may have undergone rancidity, leading to off-flavors and potential health risks. Therefore, monitoring the acid number during production and storage helps ensure that products remain safe for consumption.Similarly, in the production of biodiesel, the acid number is a critical parameter that influences the transesterification process. Biodiesel is produced by reacting triglycerides with an alcohol, and the presence of free fatty acids can complicate this reaction. A high acid number may necessitate additional processing steps, such as pre-treatment, to convert these free fatty acids into esters effectively. Consequently, manufacturers aim to keep the acid number within acceptable limits to optimize production efficiency and yield.Moreover, the acid number is also significant in the lubrication industry. Lubricating oils must maintain specific properties to ensure optimal performance in machinery. An increase in the acid number of a lubricant can lead to corrosion of metal parts and reduced lubrication effectiveness. Regular monitoring of the acid number allows companies to assess the condition of their lubricants and make timely decisions regarding maintenance or replacement.In summary, the acid number is a vital indicator of the quality and stability of various substances, particularly in the oil and fat industries. By understanding and monitoring this parameter, manufacturers can ensure product safety, enhance production processes, and maintain the performance of lubricants. Knowledge of the acid number not only aids in quality control but also plays a crucial role in regulatory compliance and consumer safety. As industries continue to evolve, the importance of accurately measuring and interpreting the acid number will remain paramount, ensuring that products meet the highest standards of quality and safety.

“酸值”这一术语指的是在化学和材料科学领域中使用的一种测量，特别是在油脂和其他物质的分析中。它表示在给定数量的物质中存在的游离酸的数量，通常以每克样品中需要中和酸的氢氧化钾（KOH）毫克数来表示。理解“酸值”对于许多行业至关重要，尤其是那些涉及润滑剂、生物柴油和食品产品制造的行业。在油脂的背景下，高“酸值”可能表明降解或变质，这会影响产品的质量和安全性。例如，在食品行业中，具有高“酸值”的油脂可能已经发生了酸败，导致异味和潜在的健康风险。因此，在生产和储存过程中监测“酸值”有助于确保产品保持安全可食用。同样，在生物柴油生产中，“酸值”是影响酯化反应的关键参数。生物柴油是通过将甘油三酯与醇反应生成的，游离脂肪酸的存在可能会使这一反应变得复杂。高“酸值”可能需要额外的处理步骤，例如预处理，以有效地将这些游离脂肪酸转化为酯。因此，制造商旨在将“酸值”保持在可接受的范围内，以优化生产效率和产量。此外，“酸值”在润滑行业中也具有重要意义。润滑油必须保持特定的性能，以确保机械的最佳运行。润滑剂的“酸值”增加可能导致金属部件的腐蚀和润滑效果降低。定期监测“酸值”使公司能够评估其润滑剂的状态，并及时做出维护或更换的决策。总之，“酸值”是各种物质质量和稳定性的关键指标，特别是在油脂行业。通过理解和监测这一参数，制造商可以确保产品安全、改善生产过程并维持润滑剂的性能。对“酸值”的了解不仅有助于质量控制，还在合规和消费者安全方面发挥着重要作用。随着行业的不断发展，准确测量和解释“酸值”的重要性将始终存在，确保产品符合最高的质量和安全标准。