Sciencemadness Discussion Board - Does anyone have solubility data of HCl in various solvents (Methanol, Ethanol, Ether)?

Does anyone have solubility data of HCl in various solvents (Methanol, Ethanol, Ether)?

Sidmadra - 15-7-2018 at 19:38

I've been searching for the past 20 minutes and to my surprise I can't find any data about this. At best I can find companies selling premixed solutions of different concentrations, but this doesn't tell me much about solubility itself. I am mostly interested in it's solubility in Methanol. Any information is appreciated.

BromicAcid - 15-7-2018 at 19:42

Why doesn't it tell you much about the solubility itself? Aldrich sells a 3M solution of HCl in methanol. Are you trying to make the most concentrated solution possible, is that your question? Because otherwise 3M is a good data point.

They also have a 2M in ether and a 1.25M in EtOH which are again good data points to have.

A quick search though gives the following information:

Quote:

Solubility in methanol: 54.6 g/100 g solution at -10 deg C; 51.3 g/100 g solution at 0 deg C; 47.0 g/100 g solution at 20 deg C; 43.0 g/100 g solution at 30 deg C; solubility in ethanol: 45.4 g/100 g solution at 0 deg C; 42.7 g/100 g solution at 10 deg C; 41.0 g/100 g solution at 20 deg C; 38.1 g/100 g solution at 30 deg C; solubility in ether: 37.52 g/100 g solution at -10 deg C; 35.6 g/100 g solution at 0 deg C; 24.9 g/100 g solution at 20 deg C; 19.47 g/100 g solution at 30 deg C
O'Neil, M.J. (ed.). The Merck Index - An Encyclopedia of Chemicals, Drugs, and Biologicals. Cambridge, UK: Royal Society of Chemistry, 2013., p. 888

[Edited on 7/16/2018 by BromicAcid]

Sidmadra - 15-7-2018 at 20:34

Quote: Originally posted by BromicAcid

Are you trying to make the most concentrated solution possible, is that your question?

Pretty much. I still plan to titrate after making it the fact to determine what concentration it ends up at, but it would still help me a lot if I had a rough idea of how much I can expect the methanol to hold. I prefer to have as much data as I can before I go into things like this to avoid wasting reagents. Something as common as HCl, had me surprised I wasn't able to more easily find a solubility table/chart online.

MJ101 - 15-7-2018 at 22:33

I found this.

https://srdata.nist.gov/solubility/IUPAC/iupac.aspx

Hopefully, this will help you.

Edit: I could not easily find the data for HCL, but it appears to be here.

https://srdata.nist.gov/solubility/IUPAC/SDS-42/SDS-42.pdf

[Edited on 16-7-2018 by MJ101]

DJF90 - 16-7-2018 at 00:19

This is given on p. 50 of "Purification of Laboratory Chemicals" by Armarego and Perrin (6th Ed.):

Sidmadra - 16-7-2018 at 08:11

I looked over the data from multiple of the above posts (thank you everyone), and if I am interpreting them correctly, Hydrogen Chloride can dissolve into Methanol at up to a 45-50% concentration? Isn't it's water solubility capped around 37% or so before it starts fuming? I didn't imagine Methanol would be able to achieve such a high concentration.

DJF90 - 16-7-2018 at 09:18

100g of methanol has a larger volume than 100g of water due to differences in density. Essentially you're dissolving the same mass of gas (HCl) in a larger volume of solvent, hence the larger %w/w concentration.

If you normalise for density of the solvent then both water and methanol both give HCl solutions around 37%w/v