A New Method for Determination of Molecular Weight of Compounds Soluble in Protic Solvents by Electrochemical Impedance Spectroscopy
| Autor: | Subramaniam, Rameshkumar, Panjaiyan, Karthikeyan, Iman, Danaee, Manogaran, Obulichetty |
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| Rok vydání: | 2023 |
| Zdroj: | Frontiers in Voltammetry ISBN: 9781803564463 Frontiers in Voltammetry |
| DOI: | 10.5772/intechopen.106558 |
| Popis: | This chapter deals with a new method for determining the molecular weight of chemical substances soluble in protic solvents. One of the well-known methods for the determination of molecular weight of a substance, based on one of the colligative properties, is Ostwald and Walker’s method, which depends on relative lowering of vapor pressure of solvent. In this paper we proposed a new method for determining the molecular mass of the substances that are soluble in protic solvents such as water, methanol and ethanol employing electrochemical impedance spectroscopy (EIS) technique and Raoult’s law. The moisture and vapor pressure dependent proton conductivity of some organic compounds and metal-organic frame works (MOFs) can be utilized to find the molecular mass of solutes soluble in protic solvents. This property is considered as key for determination of molecular weight of chemical substances using EIS and is simpler than Ostwald and Walker’s method. This method is a non-destructive and also useful to determine the molecular weight of polymers and proteins soluble in protic solvents. |
| Databáze: | OpenAIRE |
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