Re: lithium bromide solubility ?

[Dirk-Jan Treffers <dirkjan.treffers@gmail.com>]

Hi Joe!

I have a Handbook of Physics and Chemistry that most chemistry students will learn to love and hate at the same time, but that's at work unfortunately, so I'll have to check tomorrow if the specific solubility of lithium bromide in ethanol is mentioned.
If you're not REALLY looking for the exact number of solubility in terms of saturated solutions (and thus the maximum amount of grams per liter of ethanol you can dissolve), I would say at first hand:
The solubility of LiBr will not be very different than the solubility of LiI. The argument is that they are both part of the LiX group (so, salts made of Lithium as the positive metal ion and a halide as chloor, bromium, iodine or fluoride (Cl, Br, I or F) as the negative part of the salt).
Usually, there is perhaps some difference between the chloro or fluoro-salts and the others, but between Br and I (bromium and iodine), I don't expect that many different physiscal or chemical properties!

kind regards,

DJ

2008/9/7 Joseph Smigiel <jsmigiel@net-link.net>

I'm hoping a chemist on the list can relate to me the solubility of lithium bromide in 95% ethanol at room temperature.

I purchased some of this salt recently to try a variation on a wetplate collodion formula and discovered it is extremely hygroscopic.  Therefore, I'm planning to dissolve the salt in grain alcohol and use that as a stock liquid solution rather than measuring small quantities of the crystals and repeatedly opening the storage container to do so.  I want to avoid adding any more water to the collodion mixture and since grain alcohol is already used in the formula, I'll add the salt to that before combining it to make the working mixture.  I thought I had a source for the information, but it only lists the solubility of lithium iodide in ethanol and not lithium bromide.

Any help appreciated.

Joe