Abstract : HCl is available in solutions with a maximum concentration of 38 percent (concentrated grade). Chemically, you can get concentrations of up to a little over 40%, but the rate of evaporation is so high that you have to take extra steps to store and handle it, like keeping it at a low temperature and pressure. Due to its high evaporation rate, laboratory-grade HCl is insufficiently pure to serve as a main standard. In this experiment, a standard solution of Na2CO3 is used to calculate the exact concentration of a HCl solution.
Cite : Kumar, K., & Yadav, N. (2022). To Prepare And Standardize 0.1n Solution Of Hydrochloric Acid (1st ed., p. 9). Noble Science Press. https://doi.org/10.52458/9789391842512.nsp2022.eb.asu.ch-02
