amphoteric

简明释义

英[ˌæmfəˈterɪk]美[ˌæmfəˈterɪk]

adj. [化学] 两性的（酸性的或碱性的）

英英释义

单词用法

同义词

反义词

例句

1.The influence on desalination and anti-pollution by the different cross-linking degree of Amphoteric resins was investigated .

用互贯法合成了不同交联度的强碱弱酸两性树脂，考查了树脂交联度对两性树脂脱盐抗污染的影响。

2.The applications of products from amino-acid imidazoline amphoteric surfactant were recommended.

介绍了以它为原料制备产品的用途。

3.Carboxylic amphoteric starch paste had better stability against acid and alkali, shearing and better freeze-thaw stability, higher clarity.

羧基型两性淀粉的糊液抗酸碱、剪切的能力较原淀粉明显提高，透明度及冻融稳定性较原淀粉也有显著提高。

4.Proteins behave either as acids or bases and are said to be amphoteric.

蛋白质习性又像酸又像碱，因此说它是两性的。

5.The amino acids on amphoteric ion exchange fiber are easy to be eluted and a small amount of elution reagent is therefor needed.

两性离子交换纤维还具有洗脱容易，洗脱液用量少的特点。

6.The new opinion to explain why amphoteric surfactant is the best lime soap dispersing agent was given from the view point of mixed micelle theory.

从混合胶束理论出发，对两性表面活性剂是比其他类型表面活性剂更优秀的钙皂分散剂这一事实，作者提出了新见解。

7.Aim To explore interaction mode between amphoteric molecules with the ordered phospholipid membrane.

目的揭示两性分子与有序磷脂膜的作用模式。

8.The results of recovery of rolled shale samples show that the inhibitory property of the amphoteric copolymer is better than that of an anionic AMPS copolymer.

页岩滚动回收测试结果表明共聚物的抑制性好于阴离子型AMPS共聚物。

9.Zinc oxide is considered amphoteric 两性 because it can react with both acids and bases.

氧化锌被认为是两性的，因为它可以与酸和碱反应。

10.In chemistry, an amphoteric 两性 compound can help buffer solutions by reacting with excess acids or bases.

在化学中，两性化合物可以通过与多余的酸或碱反应来帮助缓冲溶液。

11.Water is an example of an amphoteric 两性 substance because it can act as both an acid and a base.

水是一个例子，它是一种两性物质，因为它可以作为酸和碱。

12.The amphoteric 两性 characteristics of certain metal oxides make them useful in various industrial applications.

某些金属氧化物的两性特性使它们在各种工业应用中非常有用。

13.The amphoteric 两性 nature of amino acids allows them to participate in various biochemical reactions.

氨基酸的两性特性使它们能够参与各种生化反应。

作文

In the realm of chemistry, the term amphoteric refers to substances that can act as both acids and bases. This unique property allows these compounds to react with both acids and bases, making them versatile in various chemical reactions. For instance, water is a classic example of an amphoteric substance. It can donate a proton to become hydroxide (OH-) when it acts as a base, or it can accept a proton to become hydronium (H3O+) when it acts as an acid. This dual capability is crucial for many biological and chemical processes, as it helps maintain pH balance in different environments.Understanding the concept of amphoteric substances is essential for students studying chemistry, as it lays the foundation for more advanced topics. For example, amino acids, which are the building blocks of proteins, also exhibit amphoteric behavior. They contain both an amine group (-NH2) that can accept a proton and a carboxyl group (-COOH) that can donate a proton. This property is vital for their function in biological systems, allowing them to participate in various biochemical reactions without altering the overall pH significantly.Moreover, the amphoteric nature of certain compounds can be exploited in various industrial applications. For instance, aluminum hydroxide is used in antacids due to its ability to neutralize stomach acid. When it comes into contact with hydrochloric acid (HCl), it reacts to form aluminum chloride and water, effectively reducing acidity. Conversely, when it encounters sodium hydroxide (NaOH), it acts as an acid, forming sodium aluminate. This versatility is what makes amphoteric substances so valuable in both laboratory settings and everyday life.In environmental science, the amphoteric properties of certain minerals play a significant role in soil chemistry and nutrient availability. For example, clay minerals can behave as amphoteric substances, influencing the retention of nutrients and the overall health of soil ecosystems. By understanding how these minerals interact with different ions in the soil, scientists can develop strategies to improve soil quality and agricultural productivity.Furthermore, the study of amphoteric compounds extends beyond chemistry and biology; it has implications in fields such as medicine and pharmacology. Many drugs are designed to be amphoteric to ensure they can effectively interact with various biological targets. This attribute can enhance the solubility and bioavailability of drugs, making them more effective in treating diseases.In conclusion, the term amphoteric encapsulates a fascinating aspect of chemistry that highlights the complexity and interconnectedness of different scientific disciplines. Whether in the context of biological systems, industrial applications, environmental science, or medicine, the ability of substances to act as both acids and bases is a fundamental concept that underscores the dynamic nature of chemical interactions. As we continue to explore the properties and applications of amphoteric substances, we gain deeper insights into the intricate workings of our world and the processes that sustain life.

在化学领域，术语两性指的是可以同时作为酸和碱的物质。这种独特的性质使这些化合物能够与酸和碱反应，在各种化学反应中具有多样性。例如，水就是一个经典的两性物质的例子。它可以释放一个质子以作为碱而变成氢氧根（OH-），或者可以接受一个质子以作为酸而变成氢离子（H3O+）。这种双重能力对许多生物和化学过程至关重要，因为它有助于维持不同环境中的pH平衡。理解两性物质的概念对于学习化学的学生至关重要，因为它为更高级的主题奠定了基础。例如，氨基酸是蛋白质的构建块，也表现出两性行为。它们包含一个氨基（-NH2）可以接受质子和一个羧基（-COOH）可以释放质子的基团。这一特性对它们在生物系统中的功能至关重要，使它们能够参与各种生化反应，而不会显著改变整体pH。此外，某些化合物的两性性质可以被利用于各种工业应用。例如，氢氧化铝因其能够中和胃酸而被用于抗酸药。当它与盐酸（HCl）接触时，它会反应生成氯化铝和水，有效降低酸度。相反，当它遇到氢氧化钠（NaOH）时，它作为一种酸，形成铝酸钠。这种多样性就是为什么两性物质在实验室和日常生活中如此有价值。在环境科学中，某些矿物的两性特性在土壤化学和养分可用性中发挥着重要作用。例如，粘土矿物可以表现为两性物质，影响养分的保留和土壤生态系统的整体健康。通过理解这些矿物如何与土壤中的不同离子相互作用，科学家可以制定改善土壤质量和农业生产力的策略。此外，两性化合物的研究超越了化学和生物学；它在医学和药理学等领域也有影响。许多药物被设计为两性以确保它们能够有效地与各种生物靶标相互作用。这一属性可以增强药物的溶解度和生物利用度，使其在治疗疾病时更有效。总之，术语两性概括了化学的一个迷人方面，突显了不同科学学科之间的复杂性和相互联系。无论是在生物系统、工业应用、环境科学还是医学的背景下，物质作为酸和碱的能力都是一个基本概念，强调了化学相互作用的动态性质。随着我们继续探索两性物质的性质和应用，我们对支撑生命的过程和我们世界的复杂运作有了更深刻的认识。