在不同的水和盐度条件下,硫酸和化类型溶液的电阻反应
Xiaoran Li1, Qiang Sun1,2,3, Xusheng Yan4
1College of Geology and Environment, Xi'an University of Science and Technology, Xi'an, 710054, Shaanxi, China.
概括
盐水的电电阻性随着水分和盐分的增加而降低. 硫酸盐比化具有更高的电阻,影响环境监测.
科学领域:
- 地质技术工程 地质技术工程
- 环境科学 环境科学
- 土壤科学 土壤科学
背景情况:
- 在非洲,拉丁美洲和亚洲普遍存在的盐酸,由于湿扩张和干燥收缩,具有显著的环境影响.
- 了解盐水的电特性对于环境监测和评估污染物迁移至关重要.
研究的目的:
- 为了研究不同水分和盐分含量的硫酸和化溶液的电电阻.
- 分析盐水中的水分含量,盐类型,盐含量和电电阻之间的关系.
主要方法:
- 使用LCR数字桥梁仪器进行电阻测量.
- 实验涉及不同含水量 (8-24%) 和盐含量 (0.3-2.7%) 的硫酸和化.
主要成果:
- 随着水分和盐分的增加,电阻率下降.
- 观察到和点约为0.9%的盐含量,此后电阻降低率稳定.
- 盐的类型影响了电阻,硫酸盐比化物的价值更高.
- 随着水分含量增加,水导电路的变化 (从扩散双层到毛细血管和重力水) 影响了电阻降低率.
结论:
- 电阻率是土中水分和盐分含量的敏感指标.
- 这些发现为解释环境监测和盐地区污染物评估的电阻测量提供了有价值的数据.
- 可以根据电阻性来区分硫酸盐和化盐溶液,这有助于进行特定地点的评估.
更多相关视频
06:27Expression of Cementitious Pore Solution and the Analysis of Its Chemical Composition and Resistivity Using X-ray Fluorescence
Published on: September 23, 2018
9.3K
10:00Experimental Protocol to Determine the Chloride Threshold Value for Corrosion in Samples Taken from Reinforced Concrete Structures
Published on: August 31, 2017
15.5K
相关概念视频
Responses to Salt Stress
13.2K
Salt stress—which can be triggered by high salt concentrations in a plant’s environment—can significantly affect plant growth and crop production by influencing photosynthesis and the absorption of water and nutrients.
13.2K
Ionic Strength: Effects on Chemical Equilibria
1.5K
The addition of an inert ionic compound increases the solubility of a sparingly soluble salt. For example, adding potassium nitrate to a saturated solution of calcium sulfate significantly enhances the solubility of calcium sulfate. Le Châtelier's principle cannot predict this shift in the equilibrium. Instead, this could be explained in terms of changes in the effective concentration of the ions in solution in the presence of added inert salt.
In this solution, the primary...
In this solution, the primary...
1.5K
Solubility Equilibria: Overview
716
When a substance such as sodium chloride is added to water, it dissolves, forming an aqueous solution. The extent of dissolution is called solubility. The process of dissolution can exist in equilibrium, just like other chemical processes. Solubility equilibria are also called precipitation equilibria because the process of solubility can be reversible. The reverse of the solubility process is called precipitation.
Solubility is important in biological and environmental processes. A notable...
Solubility is important in biological and environmental processes. A notable...
716
Solvents
64.7K
A solvent is a substance, most often a liquid, that can dissolve other substances. Here, the substance being dissolved is called a solute. When a solvent and a solute combine, they form a solution - a homogenous mixture of both the solvent and the solute. Water is a universal biological solvent. Its polar structure allows it to dissolve many other polar compounds. The ability of water to dissolve is governed by a balance between water molecules binding to each other and binding to the solute.
A...
A...
64.7K
Solubility Equilibria
52.8K
Solubility equilibria are established when the dissolution and precipitation of a solute species occur at equal rates. These equilibria underlie many natural and technological processes, ranging from tooth decay to water purification. An understanding of the factors affecting compound solubility is, therefore, essential to the effective management of these processes. This section applies previously introduced equilibrium concepts and tools to systems involving dissolution and precipitation.
The...
The...
52.8K
Factors Influencing Microbial Growth: Osmolarity
44
Osmolarity is the measure of solute concentration in a solution. It plays a critical role in determining water availability for organisms. Water moves across semipermeable membranes through osmosis, flowing from regions of lower solute concentration (more dilute) to regions of higher solute concentration (more concentrated).In high-solute environments, microbial cells lose water, leading to dehydration and inhibited growth. The extent to which water is available to microbes in such environments...
44
