Analysis method for methanol concentration in methanol aqueous solution?
Thread Content
The crude product is purified by recrystallization using methanol as the solvent. The methanol gas and water vapor released during the recrystallization process are condensed in a condenser, resulting in an methanol-water solution with an estimated concentration of around 10–50%. Could you please advise on the method for analyzing the methanol concentration? Thank you!
Gas chromatography (with an alcohol column as the chromatographic column) can be used for analysis
If chromatography-grade precision is not required, the refractometry method can be considered
If online testing is required, an online refractometer can be used; for manual testing, a laboratory refractometer or a portable one can be employed
We can help you resolve this issue – it can be installed directly in production without the need for sampling; real-time monitoring is possible, so you might want to take a look
Simply put, why use the specific gravity method? It’s so complicated and costly; the specific gravity method is simpler and more practical.