| Autor: |
dela Cruz Ma. Carmela P., Organo Voltaire G. |
| Jazyk: |
angličtina |
| Rok vydání: |
2024 |
| Předmět: |
|
| Zdroj: |
Open Chemistry, Vol 22, Iss 1, Pp 28-34 (2024) |
| Druh dokumentu: |
article |
| ISSN: |
2391-5420 |
| DOI: |
10.1515/chem-2024-0011 |
| Popis: |
An ammonium chloride–Congo red (NH4Cl-CR) solution is presented as a potential sensing solution for aldehydes. Monofunctional aldehydes such as formaldehyde, acetaldehyde, benzaldehyde, and isobutyraldehyde caused changes in the pH of the sensing solution, producing a color transition from red-orange to violet to blue. This distinguished them from the other compounds, thereby acting as a qualitative test for the functional group. The NH4Cl-CR solution was also employed in making filter paper-based and silica gel-based sensors for formaldehyde and acetaldehyde vapors. These sensors responded positively towards the aldehyde gases through a color transition from pink to blue. The NH4Cl-CR mixture provides a simple and easy-to-handle reagent for the detection of both liquid and gaseous aldehydes which has potential applications in environmental monitoring. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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