precipitant

简明释义

英[prɪˈsɪpɪtənt]美[prɪˈsɪpətənt]

adj. 急促的；匆忙的；突如其来的；轻率的

n. 沉淀剂；起因

英英释义

单词用法

同义词

反义词

例句

1.The pearly pigment of mica titanium was prepared by using the liquid deposition method with the urea as precipitant.

采用尿素作为中和剂，用液相沉积法制备了云母钛珠光颜料。

2.In the precipitate system with masking agents, the calculation of the rational amount of the precipitant and the smallest remainder of metal ions in the solution is a complicated matter.

在沉淀体系中，当有掩蔽剂存在时沉淀剂的合理用量及被沉淀离子在溶液中最小残留量的计算是个复杂问题。

3.Solution polymerized styrene-butadiene rubber ( S-SBR ) was fractionated by repeated precipitation method, using redistilled toluene as solvent and ethyl alcohol as precipitant.

本工作用甲苯作溶剂，乙醇作沉淀剂，用沉淀分级法，对溶聚丁苯橡胶（S-SBR）进行了分级。

4.A compound used in analysis as a precipitant for palladium or nickel.

在分析中用作钯或镍的沉淀剂的化合物。

5.The spheroidicity zirconia is prepared by controlling the reactive temperatures, the precipitant reagents and adding additives through a alcohols solvent precipitation method.

采用醇溶剂沉淀法，通过控制温度、改变沉淀剂，加入添加剂等条件制备了椭球形氧化锆。

6.Nano ZrO2 was prepared by sol-gel method with ZrOCl2·8H2O as ingredient and ammonia as precipitant.

以廉价无机盐八水氧氯化锆为原料，用氨水作沉淀剂，采用溶胶— 凝胶法制备纳米级二氧化锆。

7.The results could indicate that "this dramatic change in lifestyle accompanying the birth of a child is more of a precipitant for mental disorders in women than in men, " the authors write.

作者说，结果也显示伴随孩子出生的生活方式的巨大变化，对母亲的精神方面影响大于父亲。

8.In many cases, a traumatic experience can be a precipitant 诱因 for mental health disorders.

在许多情况下，创伤经历可以成为心理健康障碍的一个诱因。

9.The doctor explained that stress is often a precipitant 诱因 of migraines.

医生解释说，压力常常是偏头痛的一个诱因。

10.The report identified several environmental factors as precipitants 促成因素 of health issues in the community.

报告指出了一些环境因素作为社区健康问题的促成因素。

11.In chemistry, adding a new reagent can act as a precipitant 沉淀剂 that causes a reaction.

在化学中，添加一种新试剂可以作为一个沉淀剂，引发反应。

12.The sudden change in temperature was a significant precipitant 促成因素 for the storm that followed.

温度的突然变化是随之而来的风暴的重要促成因素。

作文

In the realm of science, particularly in chemistry, the term precipitant refers to a substance that causes the formation of a precipitate in a solution. This phenomenon is crucial for various chemical reactions and processes. Understanding the role of a precipitant can enhance our grasp of not only chemistry but also its applications in daily life. For instance, when we mix two clear solutions and observe the sudden formation of a cloudy substance, we are witnessing the action of a precipitant. The concept of a precipitant extends beyond the laboratory. In environmental science, certain chemicals can act as precipitants that lead to the formation of pollutants in water bodies. For example, when heavy metals are introduced into aquatic ecosystems, they can react with other substances to form solid particles that settle at the bottom, thus affecting aquatic life. This highlights the significance of understanding precipitants in both a scientific and an ecological context.Moreover, the idea of a precipitant can be metaphorically applied to social and psychological phenomena. In life, certain events or actions can serve as precipitants that trigger significant changes or reactions in individuals or communities. For instance, a sudden loss or a major life change can act as a precipitant for emotional upheaval, leading to a period of reflection and growth. Similarly, in social movements, a particular event can serve as a precipitant that mobilizes people to take action and demand change.In conclusion, the term precipitant is not merely confined to the boundaries of chemistry. It serves as a bridge connecting scientific principles to real-world applications and broader life experiences. By recognizing the multifaceted nature of precipitants, we can better appreciate their role in both the natural world and our personal lives. The ability to identify and understand precipitants can empower us to make informed decisions, whether in scientific endeavors or in navigating the complex landscape of human emotions and societal changes.

在科学领域，尤其是化学中，术语precipitant指的是一种使溶液中形成沉淀的物质。这一现象对于各种化学反应和过程至关重要。理解precipitant的作用可以增强我们对化学及其在日常生活中应用的理解。例如，当我们混合两种清澈的溶液并观察到突然形成的浑浊物质时，我们就是在目睹precipitant的作用。precipitant的概念超越了实验室。在环境科学中，某些化学物质可以作为precipitants，导致水体中污染物的形成。例如，当重金属被引入水生生态系统时，它们可以与其他物质反应形成固体颗粒，这些颗粒沉降到底部，从而影响水生生物。这突显了在科学和生态背景下理解precipitants的重要性。此外，precipitant的概念还可以比喻性地应用于社会和心理现象。在生活中，某些事件或行为可以作为precipitants，触发个人或社区的重大变化或反应。例如，突然的失去或重大的生活变化可以作为情感动荡的precipitant，导致反思和成长的时期。同样，在社会运动中，特定事件可以作为precipitant，动员人们采取行动并要求变革。总之，术语precipitant不仅仅局限于化学的范围。它作为连接科学原理与现实应用以及更广泛生活经历的桥梁。通过认识precipitants的多面性，我们可以更好地欣赏它们在自然界和我们个人生活中的作用。识别和理解precipitants的能力可以使我们在科学探索或应对复杂的人类情感和社会变化时做出明智的决策。