Contact us
 |
[email protected] |
 |
3275638434 |
 |
 |
| Paper Publishing WeChat |
Useful Links
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License
Article
Study of Stability of Saturated Salt Solutions Cells
Author(s)
Essam Eldin Mahmoud
Full-Text PDF
XML 903 Views
DOI:10.17265/2159-5348/2015.05.002
Affiliation(s)
National Institute for Standards, Tersa St. P. O. Box: 136 Giza, Code. No. 12211, El-Haram, Egypt
ABSTRACT
This paper study stability of saturated salt solutions cells at 25 ºC. These cells were prepared and measured at National Institute for Standard (NIS-Egypt) to study the stability of the saturated salt solutions. The study was carried out using three saturated salt solutions, which are Potassium Acetate 22.5%, Potassium Iodide 68.9% and Potassium Sulphate 97.3% to cover low, medium and high relative humidity. The study was carried out using different shapes and volumes half liter spherical, liter spherical and liter conical per each salt which was prepared. The apparatus which used in measurement system in the first time are the same which used after ten years. The results show that the change of relative humidity value after ten years ranged from 0.1% to 0.7%. This value is suitable within uncertainty ± 2%. The period of stability for each run for all cells was found to be more than five hours and this period enough for calibration. The measurements show that the cells are stable for more than ten years with accepted value.
KEYWORDS
Saturated salt solutions, stability, relative humidity, dew-point sensor and cells.
Cite this paper
References